18 Channel Smart Lowside Switch
ASSP for Powertrain
Data Sheet
Data Sheet 1 V7, 2007-06-11
TLE 6244X
Features
Short Circuit Protection
Overtemperature Protection
Overvoltage Protection
16 bit Serial Data Input and Diagnostic Output
(2 bit/chan. acc. SPI Protocol)
Direct Parallel Control of 16 channels for PWM Applications
Low Quiescent Current
Compatible with 3.3V Microcontrollers
Electrostatic discharge (ESD) Protection
Green Product (RoHS-compliant)
AEC qualified
General description
18-fold Low-Side Switch (0.35 to 1 ) in Smart Power Technology (SPT) with a Serial Pe-
ripheral Interface (SPI) and 18 open drain DMOS output stages. The TLE6244X is protected
by embedded protection functions and designed for automotive and industrial applications.
The output stages are controlled via SPI Interface. Additionally 16 of the 18 channels can be
controlled direct in parallel for PWM applications. Therefore the TLE6244X is particularly
suitable for engine management and powertrain systems.
PG-MQFP-64-10
Output Stage
Output Control
Buffer
Serial Interface
SPI
LOGIC
SCLK
SI
GND
VS
SO
116
IN1
OUT1
OUT18
VBB
as Ch. 1
16
Protection
Functions
as Ch. 1
IN15 as Ch. 1
IN16 as Ch. 1
as Ch. 1
as Ch. 1
IN2 as Ch. 1
Data Sheet 2 V7, 2007-06-11
TLE 6244X
1. Description
1.1 Short Description
This circuit is available in PG-MQFP-64 package or as chip.
1.1.1 Features of the Power Stages
*) only serial control possible (via SPI)
Parallel connection of power stages is possible (see 1.13)
Internal short-circuit protection
Phase relation: non-inverting (exception: IN8->OUT8 is inverting)
1.1.2 Diagnostic Features
The following types of error can be detected:
Short-circuit to UBatt (SCB)
Short-circuit to ground (SCG)
Open load (OL)
Overtemperature (OT)
Individual detection for each output.
Serial transmission of the error code via SPI.
1.1.3 VDD-Monitoring
Low signal at pin ABE and shut-off of the power stages if VDD is out of the permitted range.
Exception: If OUT8 is controlled by IN8, OUT8 will only be switched off by the overvoltage
detection and not by undervoltage detection.
The state of VDD can be read out via SPI.
1.1.4 µsec-bus
Alternatively to the parallel and SPI control of the power stages, a high speed serial bus inter-
face can be configured as control of the power stages OUT1...OUT7 and OUT9...OUT16.
1.1.5 Power Stage OUT8
OUT8 can be controlled by SPI or by the pin IN8 only. When controlled by IN8 this power stage
is functional if the voltage at the pin VDD is above 3,5V. OUT8 will not be reset by RST. In
SPI mode the power stage is fully supervised by the VDD-monitor.
Nominal Current Ron,max at TJ = 25°C static current limita-
tion enabled by SPI
Clamping
OUT1, 2, 5, 6 2.2A 400m-70V
OUT3, OUT4 2.2A 380m-70V
OUT7, OUT8 1.1A 780m-45V
OUT9, OUT10 2.2A 380mX45V
OUT11...OUT14 2.2A 380m-45V
OUT15, OUT16 3.0A 280mX45V
OUT17, OUT18 *) 1.1A 780mX45V
Data Sheet 3 V7, 2007-06-11
TLE 6244X
1.2 Block Diagram
2,2A / 70V
2,2A / 70V
2,2A / 70V
2,2A / 70V
2,2A / 70V
1.1A / 45V
1.1A / 45V
2,2A / 45V
2,2A / 45V
2,2A / 45V
2,2A / 45V
2,2A / 45V
2,2A / 45V
fault
diagnostics
2,2A / 70V
UBatt
RST
SO
SCK
SS
SI
OUT1
OUT3
OUT4
OUT5
OUT6
OUT2
OUT7
OUT8
OUT9
OUT10
OUT11
OUT12
OUT13
OUT14
IN1
IN2
IN3
IN4
IN5
IN6
IN7
IN8
IN11
IN12
IN13
IN14
SPI Interface
3,0A / 45V
3,0A / 45V OUT15
OUT16
1.1A / 45V OUT18
IN16
IN9
IN10
GND1...8
ABE
GND_ABE
VDD
VDD-Moni-
toring
VDD
control only via SPI possible
control only via SPI possible
1.1A / 45V OUT17
IN15
SPI
µsec - Bus
IN6 IN7 IN16
Data Sheet 4 V7, 2007-06-11
TLE 6244X
1.3 Description of the Power Stages
OUT1... OUT6
6 non-inverting low side power switches for nominal currents up to 2.2A. Control is possible by
input pins, by the µsec-bus or via SPI. For TJ = 25°C the on-resistance of the power switches is
below 400m.
An integrated zener diode limits the output voltage to 70V typically.
A protection for inverse current is implemented for OUT1... OUT4 for use as stepper-motor con-
trol.
OUT9... OUT14
6 non-inverting low side power switches for nominal currents up to 2.2A. Control is possible by
input pins, by the µsec-bus or via SPI. For TJ = 25°C the on-resistance of the power switches is
below 380m.
An integrated zener diode limits the output voltage to 45V typically.
OUT15, OUT16
2 non-inverting low side power switches for nominal currents up to 3.0A. Control is possible by
input pins, by the µsec-bus or via SPI. For TJ = 25°C the on-resistance of the power switches is
below 280m.
An integrated zener diode limits the output voltage to 45V typically.
OUT7, OUT8, OUT17, OUT18
4 low side power switches for nominal currents up to 1100mA. Stage 7 is non-inverting, Stage 8
is inverting (IN8 = ‘1’ => OUT8 is active). For the output OUT7 control is possible by the input pin,
by the µsec-bus or via SPI, OUT8 is controlled by the input pin IN8 or via SPI, for the outputs
OUT17 and OUT18 control is only possible via SPI. For TJ = 25°C the on-resistance of the power
switches is below 780m.
An integrated zener diode limits the output voltage to 45V typically.
In order to increase the switching current or to reduce the power dissipation parallel connection
of power stages is possible (for additional information see 1.13).
The power stages are short-circuit proof:
Power stages OUT1...OUT8, OUT11.14: In case of overload (SCB) they will be turned off after a
given delay time. During this delay time the output current is limited by an internal current control
loop.
Power stages OUT9, OUT10, OUT15...OUT18:
In case of SCB these power stages can be configured for a shut-down mode or for static current
limitation. In the shut down mode while SCB they will behave like OUT1..8 or OUT11..14.
In case of static current limitation and SCB the current is limited and the corresponding bit com-
bination is set (early warning) after a given delay time. They will not be turned off. If this condition
leads to an overtemperature condition, the output will be set into a low duty cycle PWM (selective
thermal shut- down with restart) to prevent critical chip temperature.
There are 3 possibilities to turn the power stages on again:
- turn the power stage off and on, either via serial control (SPI) or via parallel control (input pin,
except outputs OUT17 and OUT18) or by the µsec-bus (except OUT8, OUT17,OUT18)
- applying a reset signal.
- sending the instruction “del_dia” by the SPI-interface
The VDD-monitoring locks all power stages, except OUT8 for access by the IN8 input. OUT8 is
locked by an internal threshold of 3,5V maximum when controlled by IN8. Otherwise OUT8 is
locked by the VDD-monitor.
Data Sheet 5 V7, 2007-06-11
TLE 6244X
All low side switches are equipped with fault diagnostic functions:
- short-circuit to UBatt: (SCB) can be detected if switches are turned on
- short-circuit to ground: (SCG) can be detected if switches are turned off
- open load: (OL) can be detected if switches are turned off
- overtemperature: (OT) will only be detected if switches are turned on
The fault conditions SCB, SCG, OL and OT will not be stored until an integrated filtering time is
expired (please note for PWM application). If, at one output, several errors occur in a sequence,
always the last detected error will be stored (with filtering time). All fault conditions are encoded
in two bits per switch and are stored in the corresponding SPI registers. Additionally there are
two central diagnostic bits: one specially for OT and one for fault occurrence at any output.
The registers can be read out via SPI. After each read out cycle the registers have to be cleared
by the DEL_DIA command.
1.3.1 Power Stage OUT8 (Condensed Description)
1.3.1.1 Control of OUT8 and VDD-Monitoring
OUT8 can be controlled by SPI or by the pin IN8 only, control by µs-bus is not possible. When
controlled by IN8 this power stage is functional if the voltage at the pin VDD is above 3,5V. In
SPI mode the power stage is fully supervised by the VDD-monitor.
If OUT8 is controlled by IN8, OUT8 will only be switched off by the overvoltage detection and
not by undervoltage detection.
1.3.1.2 Phase Relation IN8 - OUT8
The phase relation IN8 -> OUT8 is inverting.
OUT8 is active if IN8 is set to logic '1' (high level, see 3.4.2 ) in case of parallel access.
On executing the read instruction on RD_INP1/2 the inverted status of IN8 is read back.
1.3.1.3 Reset / Power Stage Diagnostics
If OUT8 is controlled by IN8, OUT8 will not be reseted by RST.
After reset parallel control (by IN8) is active for OUT8.
If UVDD < 4.5V errors are not stored because of the active RST of the external Regulator. Nev-
ertheless
OUT8 is protected against overload.
1.3.1.4 Input Current
The control input IN8 has an internal pull-down current source. Thus the input currents I IN8
are positive (flow into the pin).
1.3.1.5 On Resistance
For OUT8 and 3.5V < UVDD < 4.5V R on increases (see 3.8.5).
1.3.1.6 Parallel Connection of Power Stages
Parallel connection of power stages with OUT8 and parallel control is prohibited (inverting
input IN8). Control via SPI is possible. See 1.13.
Data Sheet 6 V7, 2007-06-11
TLE 6244X
1.4 Pinout
Function Pin Pin Number
Input 1 IN1 7
Input 2 IN2 46
Input 3 IN3 10
Input 4 IN4 43
Input 5 IN5 6
Input 6 or FDA IN6 63
Input 7 or SSY IN7 61
Input 8 IN8 22
Input 9 IN9 20
Input 10 IN10 33
Input 11 IN11 5
Input 12 IN12 48
Input 13 IN13 13
Input 14 IN14 40
Input 15 IN15 1
Input 16 or FCL IN16 62
Output 1 OUT1 8
Output 2 OUT2 45
Output 3 OUT3 9
Output 4 OUT4 44
Output 5_1 OUT5_1 16
Output 5_2 OUT5_2 17
Output 6_1 OUT6_1 37
Output 6_2 OUT6_2 36
Output 7 OUT7 60
Output 8 OUT8 57
Output 9_1 OUT9_1 18
Output 9_2 OUT9_2 19
Output 10_1 OUT10_1 35
Output 10_2 OUT10_2 34
Output 11 OUT11 4
Output 12 OUT12 49
Output 13_1 OUT13_1 14
Output 13_2 OUT13_2 15
Output 14_1 OUT14_1 39
Output 14_2 OUT14_2 38
Output 15_1 OUT15_1 2
Output 15_2 OUT15_2 3
Output 16_1 OUT16_1 51
Output 16_2 OUT16_2 50
Output 17 OUT17 25
Output 18 OUT18 28
(Note: OUTxy_1 and OUTxy_2 have to be connected externally!)
Slave Select SS 56
Serial Output SO 53
Serial Input SI 55
SPI Clock SCK 54
Data Sheet 7 V7, 2007-06-11
TLE 6244X
Supply Voltage VDD VDD 47
Supply Voltage UBatt Ubatt 23
GND1 GND1 26
GND2 GND2 27
GND3 GND3 58
GND4 GND4 59
GND5 GND5 11
GND6 GND6 12
GND7 GND7 42
GND8 GND8 41
Sense Ground VDD-Monitoring GND_ABE 29
In-/Output VDD-Monitoring ABE 30
Reset (low active) RST 31
not connected nc 21, 24, 32, 52, 64
OUT6_1
20
OUT5_1
19
VDD
18
IN5
17
OUT12
16
OUT11
15
14
GND8
13
GND6
12
OUT14_2
11
OUT13_2
10
OUT2
9
OUT1
8
OUT4
7
OUT3
6
OUT10_1
5
OUT9_1
4
OUT6_2
3
OUT5_2
2
IN1
1 52
IN9
51
IN10
50
OUT9_2
49
OUT10_2
48
GND5
47
GND7
46
IN13
45
IN14
44
OUT13_1
43
OUT14_1
42
41
40
IN3
39
IN4
38
37
OUT15_2
36
OUT16_2
35
IN15
34
nc
33
nc
64
IN8
63
Ubatt
62
n.c.
61
OUT17
60
GND4
59
GND3
58
OUT18
57
56
55
54
53
IN6 / FDA
21
IN16 / FCL
22
IN7 / SSY
23
OUT7
24
25
GND1 26
27
28
29
30
31
32
GND2
OUT8
SCK
SI
SSGND_ABE
ABE
RST
nc
SO
nc
OUT15_1
IN12
IN11
OUT16_1
IN2
PG-DSO-64
Data Sheet 8 V7, 2007-06-11
TLE 6244X
1.5 Function of Pins
IN1 to IN16 Control inputs of the power stages
Internal pull-up current sources (exception: IN8 with pull-down current
source)
FCL Clock for the µsec-bus (pin shared with IN16)
FDA Data for the µsec-bus (pin shared with IN6)
SSY Strobe and Synchronisation for the µsec-bus (pin shared with IN7)
OUT1 to OUT18 Outputs of the power switches
Short-circuit proof
Low side switches
Limitation of the output voltage by zener diodes
VDD Supply voltage 5V
UBatt Supply voltage UBatt
Pin must not be left open but has to be connected either to UBatt or to VDD
(e.g. in commercial vehicles)
GND1 to GND8 Ground pins
Ground pins for the power stages (see 2.4)
Ground reference of all logic signals is GND1/2
RST Reset
Active low
Locks all power switches regardless of their input signals (except OUT8)
Clears the fault registers
Resets the µsec-bus interface registers
ABE In-/Output VDD-Monitoring
Active low
Output pin for the VDD-Monitoring
Input pin for the shut-off signal coming from the supervisor
GND_ABE Sense ground VDD-Monitoring
SI, SO, SCK, SS SPI Interface
Data Sheet 9 V7, 2007-06-11
TLE 6244X
1.6 SPI Interface
The serial SPI interface establishes a communication link between TLE6244X and the systems mi-
crocontroller. TLE6244X always operates in slave mode whereas the controller provides the mas-
ter function. The maximum baud rate is 5 MBaud.
The TLE6244X is selected by the SPI master by an active slave select signal at SS and by the first
two bits of the SPI instruction.SI is the data input (Slave In), SO the data output (Slave Out). Via
SCK (Serial Clock Input) the SPI clock is provided by the master.
In case of inactive slave select signal (High) the data output SO goes into tristate.
Block Diagram:
SPI Control:
SO
SCK
SI
SS
Power Stages 1..16
State Machine
Shift Register
Power Stages 1..18
MUX_REG1,2
SCON_REG1...3
Clock Counter
Control Bits
Parity Generator
Power Stages 1..18
STATCON_REG DIA_REG1...5
VDD-Monitoring
Data Sheet 10 V7, 2007-06-11
TLE 6244X
A SPI communication always starts with a SPI instruction sent from the controller to TLE6244X.
During a write cycle the controller sends the data after the SPI instruction, beginning with the MSB.
During a reading cycle, after having received the SPI instruction, TLE6244X sends the correspond-
ing data to the controller, also starting with the MSB.
SPI Command/Format:
Characteristics of the SPI Interface:
1) If the slave select signal at SS is High, the SPI-logic is set on default condition, i.e. it expects
an instruction.
2) If the 5V-reset (RST) is active, the SPI output SO is switched into tristate.
The VDD monitoring (ABE) has no influence on the SPI interface.
3) Verification byte:
Simultaneously to the receipt of an SPI instruction TLE6244X transmits a verification
byte via the output SO to the controller. This byte indicates regular or irregular operation of
the SPI. It contains an initial bit pattern and a flag indicating an invalid instruction of the previous
access.
4) On a read access the databits at the SPI input SI are rejected. On a writing access or after
the DEL_DIA instruction the TLE6244XTLE6244X sets the SPI output SO to low after sending
the verification byte. If more than 16 bits are received the rest of the frame is rejected.
5) Invalid instruction/access:
An instruction is invalid, if one of the following conditions is fulfilled:
- an unused instruction code is detected (see tables with SPI instructions)
- in case the previous transmission is not completed in terms of internal data processing
- number of SPI clock pulses counted during active SS differs from exactly 16 clock pulses.
A write access and the instruction DEL_DIA is internally suppressed (i.e internal
registers will not be affected) in all cases where at the rising (inactive) edge of SS the
number of falling edges applied to the SPI input SCK during the access is not equal to 16.
A write access is also internally suppressed (i.e internal registers will not be affected) if
at the rising (inactive) edge of SS a 17th bit is submitted (SCK=‘1’).
After the bits CPAD1,0 and INSTR (4-0) have been sent from the microcontroller
TLE6244X is able to check if the instruction code is valid. If an invalid instruction is
detected, any modification on a register of TLE6244X is not allowed and the data
byte ‘FFh’ is transmitted after having sent the verification byte. If a valid read instruction is
detected the content of the corresponding register is transmitted to the controller after having
sent the verification byte (even if bit INSW afterwards is wrong). If a valid write instruction is
MSB
76543210
0 0 INSTR4 INSTR3 INSTR2 INSTR1 INSTR0 INSW
Bit Name Description
7,6 CPAD1,0 Chip Address (has to be ‘0’, ‘0’)
5-1 INSTR (4-0) SPI instruction (encoding)
0 INSW Parity of the instruction
Data Sheet 11 V7, 2007-06-11
TLE 6244X
detected the data byte ’00h’ is transmitted to the controller after having sent the verification
byte (even if bit INSW afterwards is wrong) but modifications on any register of TLE6244 are
not allowed until bit INSW is valid, too.
If an invalid instruction is detected bit TRANS_F in the following verification byte is set to
’High’. This bit must not be cleared before it has been sent to the microcontroller.
6) If TLE6244X and additional IC’s are connected to one common slave select, they are
distinguished by the chip address (CPAD1, CPAD0). If an IC with 32bit-transmission-format is
selected, TLE6232 must not be activated, even if slave select is set to ’low’ and
the first two bits of the third byte of the 32bit-transmission are identical to the chip address
of TLE6244X.
During the transmission of CPAD1 and CPAD0 the data output SO remains in tristate (see
timing diagram of the SPI in chapter 3.9. ).
SPI access format:
Verification byte:
MSB
76543210
ZZ10101TRANS_F
Bit Name Description
0 TRANS_F Bit = 1: error detected during previous transfer
Bit = 0: previous transfer was recognised as valid
State after reset: 0
1 Fixed to High
2 Fixed to Low
3 Fixed to High
4 Fixed to Low
5 Fixed to High
6 send as high impedance
7 send as high impedance
MSB
SPI instruction
SS
SI
SO
MSB
Data 8bit
Check byte 00 00 00 00
MSB
SPI instruction XX XX XX XX
MSB
Data 8bit
READ-access (16bit)
8 bit command + 8bit data
SS
SI
SO
ZZ + 6bit
Check byte
ZZ + 6bit
Z=tristate
WRITE-access (16bit)
8 bit command + 8bit data
Data Sheet 12 V7, 2007-06-11
TLE 6244X
SPI Instructions
SPI Instruction Encoding Description
bit 7,6
CPAD1,0
bit 5,4,3,2,1
INSTR(4...0)
Parity
RD_IDENT1 00 00000 0 read identifier 1
RD_IDENT2 00 00001 1 read identifier2
WR_STATCON 00 10001 0 write into STATCON_REG
WR_MUX1 00 10010 0 write into MUX_REG1
WR_MUX2 00 10011 1 write into MUX_REG2
WR_SCON1 00 10100 0 write into SCON_REG1
WR_SCON2 00 10101 1 write into SCON_REG2
WR_SCON3 00 10110 1 write into SCON_REG3
WR_CONFIG 00 10111 0 write into CONFIG
RD_MUX1 00 00010 1 read MUX_REG1
RD_MUX2 00 00011 0 read MUX_REG2
RD_SCON1 00 00100 1 read SCON_REG1
RD_SCON2 00 00101 0 read SCON_REG2
RD_SCON3 00 00110 0 read SCON_REG3
RD_STATCON 00 00111 1 read STATCON_REG
DEL_DIA 00 11000 0 resets the 5 diagnostic registers
DIA_REG
RD_DIA1 00 01000 1 read DIA_REG1
RD_DIA2 00 01001 0 read DIA_REG2
RD_DIA3 00 01010 0 read DIA_REG3
RD_DIA4 00 01011 1 read DIA_REG4
RD_DIA5 00 01100 0 read DIA_REG5
RD_CONFIG 00 01101 1 read CONFIG
RD_INP1 00 01110 1 read INP_REG1
RD_INP2 00 01111 0 read INP_REG2
all others no function
Data Sheet 13 V7, 2007-06-11
TLE 6244X
1.6.1 Serial/Parallel Control
Serial/Parallel Control of the Power Stages 1...16 and Serial Control (SPI) of the Power Stages 17 and
18:
The registers MUX_REG1/2 and the bmux-bit prescribe parallel control or serial control (SPI or µsec-
bus) of the power stages.
(SPI-Instructions: WR_MUX1...2, RD_MUX1...2, WR_SCON1...3, RD_SCON1...3)
The following table shows the truth table for the control of the power stages 1...18. The registers
MUX_REG1, 2 prescribe parallel-control or serial control of the power stages. The registers
SCON_REG1...3 prescribe the state of the power stage in case of SPI-serial control. BMUX deter-
mines parallel control or control by µsec-bus.
For the power stages 17 and 18 control is exclusively possible via SCON17/18. IN17/18 and
MUX17/18 do not exist. BMUX has no function for OUT17/18.
Exception: OUT8 is on (active) if IN8 is set to logic ‘1’ (and off if IN8 is set to logic ‘0’) in case of
parallel access.
Note: OUT8 cannot be controlled by the µsec-Bus. Refer to section 1.7.
ABE RST INx BMUX MUXx SCONx µsec-
REGx
Output OUTx of Power Stage x,
x = 1..18
0 0 X X X X X OUTx off
0 1 X X X X X OUTx off
1 0 X X X X X OUTx off
1 1 X X 0 0 X SPI Control: OUTx on
1 1 X X 0 1 X SPI Control: OUTx off
1 1 0 1 1 X X Parallel Control: OUTx on
1 1 1 1 1 X X Parallel Control: OUTx off
1 1 X 0 1 X 0 µsec-bus Control: OUTx on
1 1 X 0 1 X 1 µsec-bus Control: OUTx off
Data Sheet 14 V7, 2007-06-11
TLE 6244X
Description of the SPI Registers
Register: MUX_REG1
7 6 5 4 3 2 1 0
MUX7 MUX6 MUX5 MUX4 MUX3 MUX2 MUX1 MUX0
State of Reset: 80H
Access by Controller: Read/Write
Bit Name Description
0 MUX0 Serial or parallel control of power stage 1
1 MUX1 Serial or parallel control of power stage 2
2 MUX2 Serial or parallel control of power stage 3
3 MUX3 Serial or parallel control of power stage 4
4 MUX4 Serial or parallel control of power stage 5
5 MUX5 Serial or parallel control of power stage 6
6 MUX6 Serial or parallel control of power stage 7
7 MUX7 Serial or parallel control of power stage 8
Register: MUX_REG2
7 6 5 4 3 2 1 0
MUX15 MUX14 MUX13 MUX12 MUX11 MUX10 MUX9 MUX8
State of Reset: 00H
Access by Controller: Read/Write
Bit Name Description
0 MUX8 Serial or parallel control of power stage 9
1 MUX9 Serial or parallel control of power stage 10
2 MUX10 Serial or parallel control of power stage 11
3 MUX11 Serial or parallel control of power stage 12
4 MUX12 Serial or parallel control of power stage 13
5 MUX13 Serial or parallel control of power stage 14
6 MUX14 Serial or parallel control of power stage 15
7 MUX15 Serial or parallel control of power stage 16
Data Sheet 15 V7, 2007-06-11
TLE 6244X
Register: SCON_REG1
7 6 5 4 3 2 1 0
SCON7 SCON6 SCON5 SCON4 SCON3 SCON2 SCON1 SCON0
State of Reset: FFH
Access by Controller: Read/Write
Bit Name Description
0 SCON0 State of serial control of power stage 1
1 SCON1 State of serial control of power stage 2
2 SCON2 State of serial control of power stage 3
3 SCON3 State of serial control of power stage 4
4 SCON4 State of serial control of power stage 5
5 SCON5 State of serial control of power stage 6
6 SCON6 State of serial control of power stage 7
7 SCON7 State of serial control of power stage 8
Register: SCON_REG2
7 6 5 4 3 2 1 0
SCON15 SCON14 SCON13 SCON12 SCON11 SCON10 SCON9 SCON8
State of Reset: FFH
Access by Controller: Read/Write
Bit Name Description
0 SCON8 State of serial control of power stage 9
1 SCON9 State of serial control of power stage 10
2 SCON10 State of serial control of power stage 11
3 SCON11 State of serial control of power stage 12
4 SCON12 State of serial control of power stage 13
5 SCON13 State of serial control of power stage 14
6 SCON14 State of serial control of power stage 15
7 SCON15 State of serial control of power stage 16
Data Sheet 16 V7, 2007-06-11
TLE 6244X
Register: SCON_REG3
7 6 5 4 3 2 1 0
1 1 1 1 1 1 SCON17 SCON16
State of Reset: FFH
Access by Controller: Read/Write
Bit Name Description
0 SCON16 State of serial control of power stage 17
1 SCON17 State of serial control of power stage 18
7-2 No function: HIGH on reading
Data Sheet 17 V7, 2007-06-11
TLE 6244X
1.6.2 Diagnostics/Encoding of Failures
Description of the SPI Registers
(SPI Instructions: RD_DIA1...5)
Register: DIA_REG1
7 6 5 4 3 2 1 0
DIA7 DIA6 DIA5 DIA4 DIA3 DIA2 DIA1 DIA0
State of Reset: FFH
Access by Controller: Read only
Bit Name Description
1-0 DIA (1-0) Diagnostic Bits of power stage 1
3-2 DIA (3-2) Diagnostic Bits of power stage 2
5-4 DIA (5-4) Diagnostic Bits of power stage 3
7-6 DIA (7-6) Diagnostic Bits of power stage 4
Register: DIA_REG2
7 6 5 4 3 2 1 0
DIA15 DIA14 DIA13 DIA12 DIA11 DIA10 DIA9 DIA8
State of Reset: FFH
Access by Controller: Read only
Bit Name Description
1-0 DIA (9-8) Diagnostic Bits of power stage 5
3-2 DIA (11-10) Diagnostic Bits of power stage 6
5-4 DIA (13-12) Diagnostic Bits of power stage 7
7-6 DIA (15-14) Diagnostic Bits of power stage 8
Data Sheet 18 V7, 2007-06-11
TLE 6244X
Register: DIA_REG3
7 6 5 4 3 2 1 0
DIA23 DIA22 DIA21 DIA20 DIA19 DIA18 DIA17 DIA16
State of Reset: FFH
Access by Controller: Read only
Bit Name Description
1-0 DIA (17-16) Diagnostic Bits of power stage 9
3-2 DIA (19-18) Diagnostic Bits of power stage 10
5-4 DIA (21-20) Diagnostic Bits of power stage 11
7-6 DIA (23-22) Diagnostic Bits of power stage 12
Register: DIA_REG4
7 6 5 4 3 2 1 0
DIA31 DIA30 DIA29 DIA28 DIA27 DIA26 DIA25 DIA24
State of Reset: FFH
Access by Controller: Read only
Bit Name Description
1-0 DIA (25-24) Diagnostic Bits of power stage 13
3-2 DIA (27-26) Diagnostic Bits of power stage 14
5-4 DIA (29-28) Diagnostic Bits of power stage 15
7-6 DIA (31-30) Diagnostic Bits of power stage 16
Data Sheet 19 V7, 2007-06-11
TLE 6244X
Register: DIA_REG5
7 6 5 4 3 2 1 0
1 1 1 UBatt DIA35 DIA34 DIA33 DIA32
State of Reset: FFH
Access by Controller: Read only
Bit Name Description
1-0 DIA (33-32) Diagnostic Bits of power stage 17
3-2 DIA (35-34) Diagnostic Bits of power stage 18
4 UBatt 0: Voltage Level at Pin UBatt is below 2V (typically)
1: Voltage Level at Pin UBatt is above 2V (typically)
Diagnosis of UBatt is only possible if UVDD > 4.5V
Status of UBatt is not latched.
7-5 No function: High on reading
Encoding of the Diagnostic Bits of the Power Stages
DIA(2*x-1) DIA(2*x-2) State of power stage x x = 1..18
1 1 Power stage o.k.
1 0 Short-circuit to UBatt (SCB) / OT
0 1 Open load (OL)
0 0 Short-circuit to ground (SCG)
Data Sheet 20 V7, 2007-06-11
TLE 6244X
1.6.3 Configuration
The µsec-bus is enabled by this register. In addition the shut off at SCB can be configured for the
power-stages OUT9, OUT10 and OUT15... OUT18.
Description of the µsec-bus see chapter 1.7
CONFIG (Read and write)
7 6 5 4 3 2 1 0
O16-SCB O15-SCB O10-SCB O9-SCB O18-SCB O17-SCB BMUX 1
State of Reset: FFh
Bit Name Description
0 No function: HIGH on reading
1 BMUX 1: parallel inputs INx enabled
0: µsec-Bus Interface enabled
2 O17-SCB 1: The output OUT17 is switched off in case of SCB
0: The output is not switched off in case of SCB
3 O18-SCB 1: The output OUT18 is switched off in case of SCB
0: The output is not switched off in case of SCB
4 O9-SCB 1: The output OUT9 is switched off in case of SCB
0: The output is not switched off in case of SCB
5 O10-SCB 1: The output OUT10 is switched off in case of SCB
0: The output is not switched off in case of SCB
6 O15-SCB 1: The output OUT15 is switched off in case of SCB
0: The output is not switched off in case of SCB
7 O16-SCB 1: The output OUT16 s switched off in case of SCB
0: The output is not switched off in case of SCB
Data Sheet 21 V7, 2007-06-11
TLE 6244X
1.6.4 Other
Reading the IC Identifier (SPI Instruction: RD_IDENT1):
Reading the IC revision number (SPI Instruction: RD_IDENT2):
Reset of the Diagnostic Information (SPI Instruction: DEL_DIA):
Resets the 5 diagnostic registers DIA_REG1...5 to FFH and the common overtemperature flag in regis-
ter STATCON_REG (Bit4) to High. These bits are only cleared by the DEL_DIA instruction when there
is no failure entry at the input of the registers.
Access is performed like a writing access with any data byte.
In the case a power stage is shut off because of SCB, the output is activated again by the DEL_DIA
instruction and the filtering-time is enabled. Therefore in case of SCB the output is activated and shut
off after the shutoff delay.
For a power stage in the current limitation mode, the current limitation mode is left, if a DEL_DIA
instruction has been received. If there is still the condition for SCB the current limitation mode
is entered again.
On the following pages the conditions for set and reset of the SCB report in DIA_REGx is shown in
several schematics. The signal „power stage control“ is generated as follows:
IC Identifier1 (Device ID)
7 6 5 4 3 2 1 0
ID7 ID6 ID5 ID4 ID3 ID2 ID1 ID0
Bit Name Description
7...0 ID(7...0) ID-No.: 10101000
IC revision number
7 6 5 4 3 2 1 0
SWR3 SWR2 SWR1 SWR0 MSR3 MSR2 MSR1 MSR0
Bit Name Description
7...4 SWR(3...0) Revision corresponding to Software release: 0Hex
3...0 MSR(3...0) Revision corresponding to Maskset: 0Hex
OR AND
power stage control = „ON“
ABE not active
INi=“ON“
SPI=“ON“
µsec=“ON“
Data Sheet 22 V7, 2007-06-11
TLE 6244X
SCB condition
OUTx
Fault entry
in DIA_REGx
DEL_DIA command
Reset
power stage
SCB
tDIAG
On
SCB SCB
OnOn
On
On
On
SCB
OnOnOnOnOn
tDIAG tDIAG tDIAG
Schematic of SCB report of power stages OUT1...7,9...18 (power stage programmed for
no SCB
shut-off in case of SCB), SCB entry deleted by DEL_DIA after SCB condition disappeared
and power stage control was toggled
control
Data Sheet 23 V7, 2007-06-11
TLE 6244X
Schematic of SCB report of power stages OUT1...7,9...18 (power stage programmed for
SCB condition SCB no SCB
OUTx On On On On On On
Fault entry
in DIA_REGx SCB
SCB SCB
Reset
DEL_DIA command
power stage
control On On On On On
tDIAG
tDIAG
tDIAG
tDIAG
shut-off in case of SCB), SCB entry deleted by Reset after SCB condition disappeared
and power stage control was toggled
Data Sheet 24 V7, 2007-06-11
TLE 6244X
Schematic of SCB report of power stages OUT1...7,9...18 (power stage programmed for
SCB condition SCB no SCB
OUTx On On On On On
Fault entry
in DIA_REGx SCB
SCB SCB
Reset
DEL_DIA command
power stage
control On On On
tDIAG
tDIAG
tDIAG
tDIAG
On
On
shut-off in case of SCB), SCB entry deleted by DEL_DIA after SCB condition disappeared
but power stage control was not toggled
Data Sheet 25 V7, 2007-06-11
TLE 6244X
Schematic of SCB report of power stages OUT1...7,9...18 (power stage programmed for
SCB condition SCB no SCB
OUTx On On On On On
Fault entry
in DIA_REGx SCB
SCB SCB
Reset
DEL_DIA command
power stage
control On On On
tDIAG
tDIAG
tDIAG
tDIAG
On
shut-off in case of SCB), SCB entry deleted by Reset after SCB condition disappeared
but power stage control was not toggled
Data Sheet 26 V7, 2007-06-11
TLE 6244X
Schematic of SCB report of power stages OUT9,10,15...18 (power stage programmed for
SCB condition
OUTx
Fault entry
in DIA_REGx
DEL_DIA command
Reset
power stage
control
SCB
tDIAG
SCB SCB
OnOn
OnOn
SCB
On
OnOnOn
OT condition OT
no SCB
no OTno OT
On
tDIAG
tDIAG
tDIA,OT
current limitation in case of SCB), SCB resp. OT flag entry deleted exemplary by DEL_DIA
after SCB resp. OT condition disappeared and power stage control was toggled
common OT flag
in STATCON_REG OT
tDIA,OT
Data Sheet 27 V7, 2007-06-11
TLE 6244X
Reading Input1 (SPI Instruction: RD_INP1)
:
Reading Input2 (SPI Instruction: RD_INP2):
The input pins IN1..IN5 and IN8...IN15 can be used as input port expander by reading the status of
the input pins using the SPI-commands RD_INP1/2. If the µsec-bus-interface is enabled (BMUX=0) the
pull-up current sources at the input IN1..5 and IN9..15 are disabled. If BMUX=1 the pullup current
sources at these pins are enabled. The pull-up/pull-down current sources of the other input pins are
not effected by the bit BMUX.
On executing the read instruction on RD_INP1/2, the present status (not latched) of the input pins INx is
read back (exception: bit IN8 represents the inverted status of input pin IN8).
Register INP_REG1
7 6 5 4 3 2 1 0
IN8 Te s t 0IN5 IN4 IN3 IN2 IN1
Bit Name Description
0..4 IN(1...5) Status of the input pins IN1... IN5
5 No function: LOW on reading
6 Test µsec-test-bit, the bit D8 of the µsec-bus is read
7 IN8 Inverted status of the input pin IN8:
Low level at pin IN8: Bit 7 = 1
High level at pin IN8: Bit 7 = 0
Register INP_REG2
7 6 5 4 3 2 1 0
0IN15 IN14 IN13 IN12 IN11 IN10 IN9
Bit Name Description
0..6 IN9...IN15 Status of the input pins IN9...IN15
7 No function: LOW on reading
Data Sheet 28 V7, 2007-06-11
TLE 6244X
Reading the State resp. the Configuration:
(SPI Instructions: WR_STATCON, RD_STATCON)
Register: STATCON_REG
7 6 5 4 3 2 1 0
CONFIG2 CONFIG1 CONFIG0 STATUS4 STATUS3 STATUS2 STATUS1 STATUS0
Bit Name Description
0 STATUS0 Bit = 1: No overvoltage at VDD
Bit = 0: Overvoltage at VDD resp. state of overvoltage still
stored (reset by CONFIG0 = 0)
Access by Controller: Read only
Overvoltage information (bit STATUS0 = 0) will not be reset by an
external reset signal (pin RST=low). Overvoltage will be detected
and stored (CONFIG0 = 1) during RST=low. The information will be
deleted when an internal (undervoltage) reset occurs or when
CONFIG0 is set to 0.
1 STATUS1 Bit = 1: No undervoltage at VDD
Bit = 0: Undervoltage at VDD
Access by Controller: Read only
2 STATUS2 Reading the voltage level at ABE
Access by Controller: Read only
3 STATUS3 Common error flag
Bit =1: At present no error is entered in one of the 5 diag-
nostic registers DIA_REG1..5.
Bit = 0: For at least at one power stage an error has been
detected and entered in the corresponding diagnostic
register.
Access by Controller: Read only
4 STATUS4 Common overtemperature flag
Bit = 1: No overtemperature detected since the last reset
of diagnostic information (by del_dia instruction,
RST = Low or undervoltage at VDD (see 3.2. ))
Bit = 0: Overtemperature for at least one power stage has
been detected since the last reset of the
diagnostic information (by del_dia instruction,
RST = Low or undervoltage at VDD (see 3.2. ))
State of Reset: 1
Access by Controller: Read only
5 CONFIG0 Bit = 1: Latch function for overvoltage at VDD is switched on
Bit = 0: Latch function for overvoltage at VDD is switched off
State of Reset: 1
Access by Controller: Read/Write
Data Sheet 29 V7, 2007-06-11
TLE 6244X
6 CONFIG1 Bit = 1: Lower threshold of VDD-monitoring is lifted
if bit CONFIG2 = 0 (test of switch-off path)
Bit = 0: Upper threshold of VDD-monitoring is reduced
if bit CONFIG2 = 0 (test of switch-off path)
State of Reset: 1
Access by Controller: Read/Write
7 CONFIG2 Bit = 1: Test of VDD threshold is switched off
Bit = 0: Test of VDD threshold is switched on
State of Reset: 1
Access by Controller: Read/Write
Data Sheet 30 V7, 2007-06-11
TLE 6244X
1.7 µsec - Bus Interface
The µsec-bus-interface is one of three possibilities to control the power stages. OUT1...OUT7
and OUT9...OUT16 are influenced by the reset input RST. If RST is set to Low, these power
stages are switched off. After reset they are controlled by the SPI (default initialization of
TLE6244X). Power stage 8 however is not influenced by the reset input if it’s controlled by IN8
and UVDD > 3,5V. Alternatively these outputs can be controlled either by the pins IN1...IN16 or by
the µsec-bus interface. Exception: OUT8 can be controlled by IN8 or by the SPI-interface only.
The bit ’Bus-Multiplex’ (BMUX) in the SPI register CONFIG prescribes parallel access (IN1...IN7,
IN9...IN16) or µsec-bus control (see figure below). Exception: If BMUX is set to ‘0’ only the power-
stages OUT1...OUT7 and OUT9...OUT16 are controlled by the µsec-bus.
Main features:
- 16 data bits for each data-frame (at the pin FDA)
- 16 clock-pulses for each data-frame (at the pin FCL)
- clock frequency TLE6244: 0...16 MHz
- one sync -input (pin SSY) to latch the input data stream
- input level interface same as for IN6, IN7, IN16
- no error correction
SSY
FCL
D0 D1 don’t careD15D14
Data-Frame
FDA D0
16 bit shift register
FDA
FCL
SSY
SCON_REG
Principle of the µsec-bus interface
16 bit µsec-bus Reg.
SPI-shift-reg
SPI
INx BMUX
MUX_REG
OUTx
Glitch
Filter
Data Sheet 31 V7, 2007-06-11
TLE 6244X
When the bit BMUX in CONFIG is set to Low, the power stages 1...7 and 9...16 are controlled by
the µsec-bus-interface on condition that registers MUX_REG1/2 are configured for serial access.
The received µsec-bus bit stream (D0... D15) is latched into a 16-bit register by the rising edge at
SSY. Power stages 1...7 and 9...16 are switched according to bits D0...D7 and D9...D15:
Bit Dx = 0: Power stage OUTx is switched on
Bit Dx = 1: Power stage OUTx is switched off
State of reset: FFFFH
Because the power stage 8 is not controlled by the µsec-bus-interface, the corresponding bit D8
can be used as test bit, that can be read back by the SPI-interface (see register RD_INP1).
If the µsec-bus-interface is used to control the power stages, the input pins IN1..IN5 and
IN8...IN15 can be used as input port expander by reading the status of the input pins by the SPI-
commands RD_INP1/2.
µsec-bus control of
power stage
µsec-bus control of
power stage
D0 OUT14 D8 µsec-bus Test
Bit
D1 OUT1 D9 OUT11
D2 OUT2 D10 OUT10
D3 OUT3 D11 OUT9
D4 OUT4 D12 OUT12
D5 OUT5 D13 OUT13
D6 OUT6 D14 OUT16
D7 OUT7 D15 OUT15
Data Sheet 32 V7, 2007-06-11
TLE 6244X
1.8 Unused Power Stages
To avoid an „open load“ fault indication an unused power switch has to be connected to an exter-
nal pull up resistor connected to UUB or has to be switched on by the input pin or via SPI or the
µsec-bus-interface.
RPull-up,max = (UBRmin - Udrop,max - UthresOL,max) / Idiag,max
UBRmin is the required minimum battery voltage for diagnostic function of the ECU. The drop volt-
age is composed of the drop voltage of the regulator and the drop voltage of the reverse protec-
tion circuit of the regulator resp. the forward voltage of a reverse protection diode.
Attention:
This equation also applies to power switches that are used as signal drivers (pull up resistor
inside ECU or outside ECU): the permissible pull up resistance without a wrong diagnostic infor-
mation is calculated by the same equation. On dimensioning the pull up resistance in combination
with the diagnostic current, in applications as signal drivers attention must be paid especially to
the required high level (also for low battery voltage).
TLE6244X Idiag
RPull-up
UthresOL
UBR UUB
UBatt
Voltage
OUTi
Udrop
UUBatt
regulator
Data Sheet 33 V7, 2007-06-11
TLE 6244X
1.9 Timing Diagram of the Power Outputs
1.9.1 Power Stages
UINiH
UINiL
t
UINi
If the output is controlled via SPI the timing starts with the positive slope at SS
If the output is controlled by the µsec-bus, the timing starts with the pos. slope of SSY
*) With ohmic load, UCLi = UBatt
t
0.8UCLi*)
tdoff
tdon
0.8UBATT
0.2UBATT
son
soff
UCLi
UOUTi
UBATT
0.2UCLi
tson tsoff
Data Sheet 34 V7, 2007-06-11
TLE 6244X
1.10 VDD-Monitoring
Overview:
The VDD-monitoring generates a „low“ signal at the bidirectional pin ABE if the 5V supply volt-
age at pin VDD is out of the permissible range of 4.5V...5.5V. On ABE = low the power stages of
TLE6244X are switched off. Exception: OUT8 is not switched off in case of parallel control via
IN8 by the VDD monitoring undervoltage threshold, but by a threshold of 3.5V at VDD.
On shorting pin ABE to VDD or UBATT ( 36V), the power stages will be switched off in case of
undervoltage or overvoltage at pin VDD in spite of ABE = high.
The behavior of the ABE level on the return of VDD out of the undervoltage range into the cor-
rect range is not configurable. At the transition from undervoltage to normal voltage the signal
at pin ABE goes high after a filtering time is expired. The behavior of the ABE level on the
return of VDD out of the overvoltage range into the correct range is configurable in
STATCON_REG, Bit5. At the transition from overvoltage to normal voltage the signal at pin ABE
goes high either after a filtering time (OV not latched) or after a SPI writing instruction (OV
latched, state after reset).
On undervoltage condition the signal at pin ABE goes high after a filtering time is expired. On
overvoltage condition pin ABE goes high either after a filtering time or after a SPI writing instruc-
tion. Before this SPI instruction is sent to TLE6244X appropriate tests can be carried out by the
controller.
If the voltage at pin VDD is below the lower limit or is resp. was above the upper limit, this can
be read out by the SPI instruction RD_STATCON.
VDD-monitoring has no influence on SCON_REGx, MUX_REGx, DIA_REGx, CONFIG and
INP_REGx.
If output stages are switched off by the internal over-/undervoltage detection or by externally
applying a low signal at the ABE pin, no failure storage (DIAREG1...5) may occur.
Description in Detail:
Description of the Register:
STATCON_REG
Bit 7 1: Normal operation
0: Test of VDD threshold
Access by controller: read/write
State of reset: 1
Bit 6 1: Testing the lower threshold (if bit 7 = 0)
0: Testing the upper threshold (if bit 7 = 0)
Access by controller: read/write
State of reset: 1
Bit 5 1: ABE latched after overvoltage
0: ABE deactivated immediately after the disappearance of the overvoltage
Access by controller: read/write
State of reset: 1
Bit 2 Reading out the level at pin ABE
Access by controller: read only
Bit 1 1: no undervoltage at pin VDD
0: undervoltage at pin VDD
Access by controller: read only
Data Sheet 35 V7, 2007-06-11
TLE 6244X
Bit 0 1: no overvoltage at pin VDD
0: overvoltage at pin VDD resp. state of overvoltage still stored
Access by controller: read only
Testing the VDD-Monitoring:
Upper threshold:
By writing 000xxxxxb in the register STATCON_REG the overvoltage threshold is reduced by
0.8V. In STATCON_REG Bit 0 has to be LOW then.
After writing 110xxxxxb in the register STATCON_REG Bit 0 in STATCON_REG must be HIGH
again.
Lower threshold:
By writing 010xxxxxb in the register STATCON_REG the overvoltage threshold is increased by
0.8V. In STATCON_REG Bit 1 has to be LOW then.
After writing 110xxxxxb in the register STATCON_REG Bit 1 in STATCON_REG must be HIGH
again.
Example of configuration:
Requirement: After overvoltage ABE is to be LOW;
After overvoltage a self-test is carried out by the ECU, afterwards ABE is deactivated.
Register STATCON_REG is set to 111xxxxxb during driving cycle.
When ABE becomes active, overvoltage can be detected by reading out STATCON_REG.
After the ECU’s self-test a reset condition is achieved by writing 110xxxxxb into the register
STATCON_REG. This reset is only possible after disappearance of the overvoltage condition
because the set input is dominant. The reset signal is withdrawn by writing 111xxxxxb.
Data Sheet 36 V7, 2007-06-11
TLE 6244X
Block Diagram: VDD-Monitoring
1
>
1
>
1
1
0
1
0
+
-
+
-
VDD
SQ
R
&
Undervoltage
Reset
VDD
ABE
Glitch filter
Set dominant
„L“ = Undervoltage at VDD
„L“ = Overvoltage at VDD
STATCON_REG
01
2
34
5
6
7
00
0
1
1X
Test: Overvoltage Threshold
Test: Undervoltage Threshold
default
&
1
100k
„L“ = Switch Off
Power Stages
<=
<=
GND_ABE
GND_ABE
GND1,2
Data Sheet 37 V7, 2007-06-11
TLE 6244X
1.11 Notes for the Application in Commercial Vehicles
For electric systems with 24V battery voltage, that can even increase to >
_ 37V in case of
load dump, some peculiarities have to be observed!
The static voltage at pin UBatt without destruction is limited to 37V, therefore this pin must either
be connected to the 5V supply voltage VDD or else the voltage at pin UBatt has to be limited by
adequate external circuitry. By connecting pin UBatt to VDD the values of Rds, on of the power
switches will increase up to 20%.
The power stages 7...18 are equipped with a 40V active clamping. Therefore this power stages
must only drive loads with an accordingly high resistance that can be switched on in case of over-
voltage (e.g. a maximum load dump voltage of 60V and a load resistor of 1k result in a power
dissipation of 0.8W for each power stage. For all of the 12 power stages together there is a power
dissipation of 9.6W for the typical duration of a load dump of 500ms.).
The restrictions listed above are no longer relevant in case of a „overvoltage-protected
battery voltage“within the 24V electric system that limits the voltage to e.g. a maximum of
37V.
The thresholds of the currents, on which the power stages are switched off in case of overload,
are increased by approximately 25% if there is a voltage at pin UBatt higher than19V (reason:
jump start requirements in 12V electric systems). Exception: OUT9 and OUT10 and OUT15...
OUT18. See characteristics in chapters 3.5.3, 3.6.3, 3.7.3 and 3.8.3.
The restrictions concerning overload of power stages (see 3.5.2, 3.6.2, 3.7.2 and 3.8.2) and per-
missible clamping energy (see 3.5.8, 3.6.8, 3.7.8 and 3.8.8) are relevant further on.
1.11.1 Notes for short circuit limitation
The power stages are short circuit protected for the following conditions:
The max. voltage at the output pins are limited to 36V and the TLE6244 is not operating in the
booster mode.
The power stages will be switched on/off with a max. frequency of 1 kHz.
Only a 40 msec burst with the 1 kHz on/off-frequency is allowed, with a minimum burst repetition
time of 1 sec. The maximum number of burst repetition cycles is 25. The number of driving cycles
under these conditions is limited to 100 in lifetime. The temperature of the slug of the PG-MQFP-
64
package must not exceed 130°C.
These limitations are valid for UBatt > 24 V.
For Ubatt 24 V the number of driving cycles under these conditions is extended to 1000 in life-
time.
Data Sheet 38 V7, 2007-06-11
TLE 6244X
1.12 Notes for the Diagnostics
- SCB entry in DIA_REGx see diagrams in chapter 1.6.4.
- In case of overvoltage at pin VDD (VDD > 5,5V) the diagnostic information can be wrong. In
that case, the diagnostic information has to be cleared with the DEL_DIA instruction.
- The filtering time restarts when the output voltage passes the diagnostic threshold for
short to ground (SCG).
- Diagram of the typical diagnostic current:
A: Diagnostic current (see 3.11.3)
B: Bias Voltage Open Load (see3.11.2)
C: Short to GND Threshold (see 3.11.1.2)
D: Open load Threshold (see 3.11.1.1)
IOUTPUT
2.7V 5V
-130 µA
580 µA
UOUT
14V
A
A
B
0V
A
A
Short to GND Open load o. k.
D
C
3.5V
Data Sheet 39 V7, 2007-06-11
TLE 6244X
OUTx on
Current Control
10 OT
SCG
SCB
OT
OL
Fault Entry
Debouncing
Debouncing
OT
SCB
OL
SCG
INx LOW
OUTx off
INx HIGH
OUTx off
INx LOW
Toggling INx HIGH -> LOW
Toggling INx LOW -> HIGH
SCG
OL
OT
SCB
Toggling INx
LOW -> HIGH
No
Fault
No
Fault
No
Fault
No
Action
OL
OL
No
Debouncing
00 CSG
Fault Entry
SCG
SCG
No
No
Action
SCB
10 SCB
Fault Entry
01 OL
Fault Entry
SCB
No
10 SCB
Fault Entry
AB
C
Exemplary for a power stage controlled by input pin INx. Diagram is accordingly valid for serial con-
trol via SPI or µsec-bus. The SPI instruction DEL_DIA deletes all fault registers in any state.
On active reset resp. active ABE (VDD is out of range) output OUTx is switched off. After reset the
power stage is in state A (except OUT8).
State Diagram of the Power Stages Diagnostics
OUTx on
INx LOW
D
max current
3..5A
for OUT1..8,
OUT11..14
for OUT9..10
OUT15...16
A
Toggling INx
LOW -> HIGH
10 SCB
Fault Entry
OUTx off
INx LOW
OT no OT
A
Toggling INx
LOW -> HIGH
Debouncing
no OT
10 OT
Fault Entry OT
(if current limitation is configured)
for OUT9..10
OUT15...16 (no current limitation)
Debouncing
No
Action
OL SCG
At DEL_DIA:
C -> B
D -> B
A no action
OT
Data Sheet 40 V7, 2007-06-11
TLE 6244X
1.13 Parallel Connection of Power Stages
The power stages (PS) which are connected in parallel have to be switched on and off simultaneously.
The corresponding SPI-Bits SCONx have to be in the same register (see page 15), when the PS are
serial controlled via SPI.
In case of overload the ground current and the power dissipation are increasing. The application has to
take into account that all maximum ratings are observed (e.g. operating temperature TJ and total
ground current IGND, see page 36, 37).
Max. number of parallel connections: 3
The following statements apply to PS within the same TLE6244X
The max. short circuit shutdown threshold of the parallel connected PS is the summation of the corre-
sponding max. values of the PS (ISC,OUTx + ISC,OUTy +....).
Max. Nominal Current Max. Clamping Energy On Resistance
2 symmetrical PS
(see note 1)
0.9 x (Imax,OUTx + Imax,OUTy)0.75 x (ECl,OUTx + ECl,OUTy)
2 PS of the same type
(see note 2)
0.85 x (Imax,OUTx + Imax,OUTy)0.75 x (ECl,OUTx + ECl,OUTy)0.5 x Ron,OUTx,y
3 PS of the same type
(see note 2)
0,8 x
(Imax,OUTx + Imax,OUTy+
Imax,OUTz)
0,58 x
(ECl,OUTx + ECl,OUTy +
ECl,OUTz)
2 PS with the same nominal
current, but different clamp-
ing voltage (application with-
out
free-wheeling-diode)
(see note 3)
0.7 x (Imax,OUTx + Imax,OUTy)Clamping energy
of the PS with the lower
clamping voltage
2 PS with the same nominal
current, but different clamp-
ing voltage (application with
free-wheeling-diode)
(see note 3)
0.7 x (Imax,OUTx + Imax,OUTy)no clamping required
2 PS with the same clamp-
ing voltage, but different
nominal
current (see note 4)
2 PS with different nominal
current and different clamp-
ing voltage (see note 5)
Clamping energy
of the PS with the lower
clamping voltage
0.5 x Ron,OUTx,y
0.34 x
Ron,OUTx,y,z
Ron,OUTx x Ron,OUTy
Ron,OUTx + Ron,OUTy
Ron,OUTx x Ron,OUTy
Ron,Ax + Ron,OUTy
Max
Imax,OUTx
Imax,OUTy
0.75 x (Imax,OUTx +
Imax,OUTy)
ECl,OUTx
ECl,OUTy
Min
Ron,OUTx x Ron,OUTy
Ron,OUTx + Ron,OUTy
Imax,OUTx
Imax,OUTy
Max Ron,OUTx x Ron,OUTy
Ron,OUTx + Ron,OUTy
Data Sheet 41 V7, 2007-06-11
TLE 6244X
note 1: For every PS there exists only one symmetrical PS
OUT1 and OUT2 are symmetrical PS.
OUT3 and OUT4 are symmetrical PS.
...
OUT17 and OUT18 are symmetrical PS.
note 2: PS of the same type have the same nominal current and the same clamping voltage
note 3: Parallel connection of PS-type 2,2A/45V with type 2,2A/70V
note 4: Parallel connection of PS-type 2,2A/45V with type 3.0A/45V or
Parallel connection of PS-type 1.1A/45V with type 2,2A/45V
note 5: Parallel connection of PS-type 2,2A/70V with type 1.1A/45V or
Parallel connection of PS-type 2,2A/70V with type 3.0A/45V
If the power stages are configured for static current limitation the max. current limitation of the parallel
connected PS is the summation of the corresponding max. values of the
PS (ISC,OUTx + ISC,OUTy +....).
The following statements apply to Power Stages within different TLE6244X
The application has to take into account that all maximum ratings of each TLE6244X are observed.
Data Sheet 42 V7, 2007-06-11
TLE 6244X
2. Maximum Ratings
2.1 Definition of Test Conditions
The integrated circuit must not be destroyed if maximum ratings are reached. Every maximum
rating is allowed to reach, as far as no other maximum rating is exceeded.
Unless otherwise indicated all voltages are referred to GND (GND pins 1...8 connected to each
other)
Positive current flows into the pin.
2.2 Test Coverage (TC) in Series Production
In the standard production flow not all parameters can be covered due to technical or economic
reasons. Therefore the following test coverage was defined:
A) Parameter test
B) Go/NoGo test (in the course of release qualification/characterization: parameter test)
C) Guaranteed by design (covered by lab tests, not considered within the standard production
flow)
2.3 Thermal Limits
Operating temperature TLE6244
continuous -40°C TJ 150°C
additionally only for the power switches 150°C TJ 200°C
(for 100h accumulated)
Storage temperature -55°C TC 125°C
Thermal resistance RthJC 2,5 K/W
2.4 Electrical Limits
Limits must absolutely not be exceeded. By exceeding only one limit the integrated circuit might
be destroyed.
Power Supplies UVDD and UUBatt
Static (without destruction) *) -0.3V UVDD 36V
-0.3V UUBatt 37V
Dynamic <10µsec (without destruction) -0.5V UVDD 36V
-0.5V UUBatt 40V
Dynamic (500 ms, 10 x in lifetime, without destruction) -0.5V UUBatt 40V
*) UVDD > 5.5V is allowed only in case of error conditions! Not suitable for continuous
operation.
SPI Output
Output voltage -0.3V USO 36V
Data Sheet 43 V7, 2007-06-11
TLE 6244X
Output current ISO 5mA
Outputs Low Side Switches
Static voltage (without destruction) OUT1...6 64V
OUT7..18 40V
Dynamic voltage without destruction after ISO/DIS7637-1, pulses 1 to 4
OUT1 to 6, OUT9 to16: via external load (e.g. 2W lamp) 2ms
OUT7, OUT8, OUT17 and OUT18: via external load 2ms
Ground Current
Total current GND1+2 (pins 26/27) IGND1+2 18 A
(total ground current of OUT5,6,9,10,17,18)
Total current GND3+4 (pins 58/59) IGND3+4 20 A
(total ground current of OUT1,2,7,8,11,12,15,16)
Total current GND5+6 (pins 11/12) IGND5+6 6 A
(total ground current of OUT3,13)
Total current GND7+8 (pins 41/42) IGND7+8 6 A
(total ground current of OUT4,14)
Attention: Even if all ground pins are connected with each other on the PCB the total
ground currents IGND1+2 and IGND3+4 and IGND5+6 and IGND7+8 must not be exceeded.
The 4 ground pins GND1...4 are internally connected to the heat sink via an unspecified
rivet joint. Therefore it is advisable to short-circuit the 4 ground pins on the PCB and to
connect them with the heat sink. In addition the 4 ground pins GND5..8 must be connected
to the other ground pins on the PCB
Inputs of the Power Switches, SPI Inputs, Reset and Shut-off of the Power Stages
Input voltage -0.3V UINi,RST,SS,SI,SCK,ABE 36V
Input currents see 3.4.4 , 3.9.1 , 3.9.2 , 3.9.3 , 3.13.2
Pin RST
Minimum reset duration (Power-On) 15 ms
Input currents see 3.4.4
Data Sheet 44 V7, 2007-06-11
TLE 6244X
3. Electrical Characteristics
3.1 Operating
Range
(see also 3.13
VDD-monitoring
ABE)
Out of this range the power stages
can be shut off by the VDD-moni-
toring except OUT8
Voltage referred to GND_ABE
Minimum reset duration
(Power-On)
Minimum reset duration
in operation mode
4.5V UVDD 5.5V
UVDD
tRST,min
tRST,min
4.7
15
1
5.3 V
ms
µs
3.2 Validity of
Parameters
Parameters are valid for
4.5V UVDD 5.5V,
4.5V UUBatt 37V
TLE6244: -40°C TJ 150°C and
2 power stages in
current limitation
unless otherwise noted.
If VDD-monitoring is active the
power stages are switched off
except OUT8 (see page 28).
Positive current flows into the pin,
negative current flows out of the
pin.
Unless otherwise noted all volt-
ages are referred to GND
(GND1...8 connected with each
other).
If the UVDD falls below this
trashed the power stages (except
OUT8) are switched off.
If UVDD rises above this threshold
the power stages work regularly
after a delay time of 250 µsec.
Threshold for shut off of OUT8:
If UVDD rises above this threshold
the power stages work regularly
after a delay time of 250 µsec.
UVDD
UVDD
3.5 4.2 4.5
3.5
V
V
Supply voltage UVDD 4.5 5.5 V
Data Sheet 45 V7, 2007-06-11
TLE 6244X
3.3 Power Con-
sumption
UVDD 5.5V
5,5 V < UVDD < 36 V (IC is not
destroyed)
UUBatt = 14V
UUBatt = 28V
UUBatt UVDD
Power consumption in standby
mode in case of missing UVDD,
UUBatt 14V
A
C
A
A
A
A
IVDD
IVDD
IUBatt
IUBatt
IUBatt
IUBatt
20
50
3
4
1
200
mA
mA
mA
mA
mA
µA
3.4 Inputs of the
Power Stages
and Reset
IN1...IN16, RST
Outputs are switched off if inputs
are open (parallel control).
3.4.1 Low Level Reset not active,
Power stage on for
i = 1...5, 9...15
i = 6, 7, 16
Power stage off for
i = 8
B
B
B
B
URSTL
UINiL
UINiL
UINiL
1.0
1.0
1.0
1.0
V
V
V
V
3.4.2 High Level Power stage off for
i = 1...7, 9...16
Power stage on for
i = 8
B
B
B
URSTH
UINiH
UINiH
1.7
2.0
2.0
V
V
V
V
3.4.3 Hysteresis CUINi,
URST
0.1 0.6 V
3.4.4 Input Cur-
rents
In, RST
-0.3V UINi,RST UVDD
(i = 1...7, 9...16)
UVDD UINi 36 V
(i = 1...7, 9...16)
-0.3V UIN8 UVDD
0.8V UIN8 UVDD, pull down
UVDD UIN8 36 V, pull down
0V URST UVDD - 1.7V, pull up
0V UINi UVDD - 1.7V, pull up
(i = 6,7,16)
Bit BMUX = 1 (CONFIG_REG):
0V UINi UVDD - 1.7V, pull up
(i = 1..5, 9..15)
Bit BMUX = 0 (CONFIG_REG):
0V UINi UVDD, high-impedance
(i = 1..5, 9..15)
A/B
C
A/B
A
C
A
A
A
A
IINi,RST
|IINi|
IIN8
IIN8
IIN8
-IRST
-IINi
-IINi
|IINi|
-100
-100
20
20
20
5
20
40
40
40
10
40
5
5
100
100
100
100
20
100
1
µA
µA
µA
µA
µA
µA
µA
µA
µA
Data Sheet 46 V7, 2007-06-11
TLE 6244X
3.4.5 Input Protec-
tion INi
Input clamping at INi (i = 1...16):
No malfunction during clamping.
Max. clamping current (externally
limited)
static
dynamic (t < 2ms)
Max. clamping voltage
IINi = -5mA
IINi = +2mA (t < 2ms)
External current limitation at INi is
only provided if µsec-bus control is
used. In that case INi are used as
digital inputs. If µsec-bus is not
used, there is no external resistor
for current limitation. See 2.4
“Inputs of the Power Switches, SPI
Inputs...”
C
C
C
C
|IINi|
|IINi|
UINi
UINi
-3
40
2
5
70
mA
mA
V
V
3.5 Power Outputs
2.2A/70V
OUT1...6
In case of open input (parallel con-
trol) or missing power supply the
power stage is switched off. Paral-
lel connection of power stages is
possible.
3.5.1 Nominal Cur-
rent
CIOUT1..6 2.2 A
3.5.2 Extended Cur-
rent Range
IOUT1...6 > 2.2A
Accumulated operating time C100 h
3.5.3 Maximum
Current
(Short Circuit
Shut- down
Threshold)
4.5V UUBatt 17V
TJ = -40°C
TJ = 150°C
B
A
IOUT1..6
IOUT1..6
2.4
2.2
4.0
3.7
A
A
UUBatt > 21V
TJ = -40°C
TJ = 150°C
B
A
IOUT1..6
IOUT1..6
3
2.7
5.0
4.6
A
A
Above this limit short circuit to
UBatt is detected. For the duration
of the shutoff delay time tVoff (see
3.5.4) the output current is limited
to approximately this value. If the
short circuit condition is still
present after tVoff, the output is
switched off. An error is stored
after tDiag (see 3.11.4).
Data Sheet 47 V7, 2007-06-11
TLE 6244X
Between -40°C and 150°C an
approximately linear characteristic
line can be assumed for the short
circuit shutdown threshold.
Between 17V UUBatt 21V, the
short circuit shutdown threshold is
switched.
A power stage that is switched off
in case of SCB can be switched on
again by an off/on cycle at the cor-
responding input pin resp. by the
change of the state of the corre-
sponding SPI bit SCONx (see
page 16), by the µsec-Bus, by a
DEL_DIA instruction or can be
released again by reset. If the fault
register is cleared before this
release (by a DEL_DIA instruc-
tion), a new fault entry of SCB is
immediately carried out, even if
SCB condition is no longer
present.
3.5.3.1 Maximum
Battery Volt-
age at Short
Circuit to Bat-
tery
See Note 1.11.1 C UOUT
1..6
36 V
3.5.4 Shutoff Delay Shutoff delay of the power stages
after detection of SCB
B tVoff 60 215 µs
3.5.5 On Resis-
tance
OUT1,2,5,6: TJ = 25°C
OUT1,2,5,6: TJ = 150°C
OUT1,2,5,6: TJ = -40°C
OUT3,4: TJ = 25°C
OUT3,4: TJ = 150°C
OUT3,4: TJ = -40°C
For UUBatt 10V Ron is increased
up to 20%.
A
A
A
A
A
A
Ron1,2,5,6
Ron1,2,5,6
Ron1,2,5,6
Ron3, 4
Ron3, 4
Ron3, 4
220
420
180
210
410
170
320
600
250
300
580
240
400
750
310
380
720
300
m
m
m
m
m
m
3.5.6 On/off Delay
Times
„On“
„Off“
(Measurement with ohmic load)
|tdon - tdoff|
B
B
B
C
C
tdon1...6
tson1...6
tdoff1...6
tsoff1...6
td
10
5
10
10
5
µs
µs
µs
µs
µs
switch-on slew rate
switch-off slew rate
C
C
son1...6
soff1...6
15
21
V/µs
V/µs
Data Sheet 48 V7, 2007-06-11
TLE 6244X
3.5.7 Leakage Cur-
rent
UVDD = 0V, UOUT1...6 = 14V (leak-
age current of the DMOS, diag-
nostic current = 0)
UVDD = 0V, UOUT1...6 = 24V (leak-
age current of the DMOS, diag-
nostic current = 0)
A
A
IOUT1..6
IOUT1..6
50
200
µA
µA
3.5.8 Clamping
3.5.8.1 Clamping
Voltage
IOUT1...6 = 0.2A AUOUT1..6 64 76 V
3.5.8.2 Matching of
the Clamp-
ing Voltage
Between different outputs with
identical inductive loads
AU 3 V
3.5.8.3 Maximum
Clamping En-
ergy
TC 110°C
Linear decreasing current,
fmax = 50Hz (see diagrams
E = f(I) on page 66)
IOUT1...6 2.2A C E 8.5 mJ
IOUT1...6 1.0A C E 19 mJ
IOUT1...6 0.5A C E 30 mJ
3.5.8.4 Maximum
Clamping En-
ergy
TC 60°C
Linear decreasing current,
fmax = 50Hz
IOUT1...6 2.2A C E 10.8 mJ
IOUT1...6 1.0A C E 22 mJ
IOUT1...6 0.5A C E 36 mJ
3.5.8.5 Maximum
Clamping En-
ergy with two
Outputs con-
nected in par-
allel
Each output 75% of the values of
3.5.8.3 resp. 3.5.8.4
C
3.5.8.6 Maximum
Clamping En-
ergy at Load
Dump
For a maximum of 10 times during
ECU life (load dump with 400ms
and Ri = 2 over the load, e.g. 2W
lamp)
C E 50 mJ
3.5.8.7 Jump Start Each output 150% of the values of
3.5.8.4.
For a maximum of 10 jump starts
of 2 minutes each during ECU life.
C
3.5.8.8 Single pulse
TC 60°C
IOUT1...6 0.6A, max 10 000 pulse C E 50 mJ
Data Sheet 49 V7, 2007-06-11
TLE 6244X
3.6 Power outputs
2.2A/45V
OUT9...OUT14
In case of open input (parallel con-
trol) or missing power supply the
power stage is switched off. Paral-
lel connection of power stages is
possible.
3.6.1 Nominal Cur-
rent
CIOUT9..
.14
2.2 A
3.6.2 Extended Cur-
rent Range
IOUTi > 2.2A
Accumulated operating time C100 h
3.6.3 Maximum
Current
(Short Circuit
Shut down
Threshold)
4.5V UUBatt 17V for OUT11..14
4.5V UUBatt for OUT9/10
TJ = -40°C
TJ = 150°C
B
A
IOUTi
IOUTi
2.4
2.2
3.8
3.7
A
A
UUBatt > 21V for OUT11...14
TJ = -40°C
TJ = 150°C
B
A
IOUTi
IOUTi
3
2.7
5
4.6
A
A
For OUT11... OUT14
Above this limit short circuit to
UBatt is detected. For the duration
of the shutoff delay time tVoff (see
3.6.4) the output current is limited
to approximately this value. If the
short circuit condition is still
present after tVoff, the outputs
OUT11...OUT14 are switched off.
An error is stored after tDiag (see
3.11.4).
The same is true for OUT9,
OUT10 if the static current limita-
tion is not enabled.
Between -40°C and 150°C an
approximately linear characteristic
line can be assumed.
Between 17V UUBatt 21V, the
short circuit shutdown threshold is
switched for OUT11..14
Data Sheet 50 V7, 2007-06-11
TLE 6244X
A power stage that is switched off
in case of SCB can be switched on
again by an off/on cycle at the cor-
responding input pin resp. by the
change of the state of the corre-
sponding bit for SPI or µsec-bus
by a DEL_DIA instruction or can
be released again by reset. If the
fault register is cleared before this
release (by a DEL_DIA instruc-
tion), a new fault entry of SCB is
immediately carried out, even if
SCB condition is no longer
present.
For OUT9, OUT10
Above this limit short circuit to
UBatt is detected. The output cur-
rent is limited to approximately this
value if the static current limitation
is configured. An error is stored
after tDiag (see 3.11.4). If the oper-
ation leads to an overtemperature
condition, a second protection
level (about 170°C) will change the
output into a low duty cycle PWM
(selective thermal shutdown with
restart) to prevent critical chip tem-
peratures
Between -40°C and 150°C an
approximately linear characteristic
line can be assumed.
3.6.3.1 Maximum
Battery Volt-
age at Short
Circuit to Bat-
tery
See Note 1.11.1 C UOUT
9..14
36 V
3.6.4 Shutoff Delay Shutoff delay of the power stages
after detection of KSUB. For the
duration of tVoff current is limited to
maximum current.
B tVoff 60 215 µs
3.6.5 On Resis-
tance
TJ = 25°C
TJ = 150°C
TJ = -40°C
A
A
A
Ron9-14
Ron9-14
Ron9-14
200
380
150
300
550
220
380
680
280
m
m
m
For UUBatt 10V Ron is increased
up to 20%.
Data Sheet 51 V7, 2007-06-11
TLE 6244X
3.6.6 On /off Delay
Times
„On“
„Off“
( M e a s u r e m e n t w i t h o h m i c l o a d )
|tdon - tdoff|
B
B
B
C
C
tdon
tson
tdoff
tsoff
td
10
5
10
10
5
µs
µs
µs
µs
µs
switch-on slew rate
switch-off slew rate
C
C
son
soff
20
25
V/µs
V/µs
3.6.7 Leakage Cur-
rent
UVDD = 0V, UOUT9...14 = 14V
(leakage current of the DMOS,
diagnostic current = 0)
UVDD = 0V, UOUT9...14 = 24V
(leakage current of the DMOS,
diagnostic current = 0)
A
A
IOUTi
IOUTi
50
200
µA
µA
3.6.8 Clamping
3.6.8.1 Clamping
Voltage
IOUTi = 0.2A A U9...14 40 45 50 V
3.6.8.2 Maximum
Clamping En-
ergy
TC 110°C
Linear decreasing current,
fmax = 30Hz (see diagrams
E = f(I) on page 66)
IOUT9...14 2.2A C E 14 mJ
IOUT9...14 1.0A C E 30 mJ
3.6.8.3 Maximum
Clamping En-
ergy
TC 60°C
Linear decreasing current,
fmax = 30Hz
IOUT9...14 2.2A C E 17 mJ
IOUT9...14 1.0A C E 36 mJ
3.6.8.4 Maximum
Clamping En-
ergy with two
Outputs con-
nected in par-
allel
Each output 75% of the values of
3.6.8.2 resp. 3.6.8.3.
C
3.6.8.5 Maximum
Clamping En-
ergy at Load
Dump
For a maximum of 10 times during
ECU life (load dump with 400ms
and Ri = 2 over the load, e.g. 2W
lamp)
C E 50 mJ
3.6.8.6 Jump Start Each output 150% of the values of
3.6.8.3.
For a maximum of 10 jump starts
of 2 minutes each during ECU life.
C
3.6.8.7 Single pulse
TC 60°C
IOUT9...14 0.6A, max 10 000
pulse
C E 50 mJ
Data Sheet 52 V7, 2007-06-11
TLE 6244X
3.7 Power outputs
3.0A/45V
OUT15...OUT16
In case of open input (parallel con-
trol) or missing power supply the
power stage is switched off. Paral-
lel connection of power stages is
possible.
3.7.1 Nominal Cur-
rent
C IOUT15
IOUT16
3.0 A
3.7.2 Extended Cur-
rent Range
IOUT15,16 > 3.0A
Accumulated operating time C100 h
3.7.3 Maximum
Current
(Short Circuit
Shut down
threshold)
UUBatt > 4.5V
TJ = -40°C
TJ = 150°C
Above this limit short circuit to
UBatt is detected. For the duration
of the shutoff delay time tVoff (see
3.6.4) the output current is limited
to approximately this value. If the
short circuit condition is still
present after tVoff, the outputs
OUT15/16 are switched off if the
static current limitation is not
enabled. An error is stored after
tDiag (see 3.11.4).
B
A
IOUT15
IOUT16
3.3
3
6
5.5
A
A
Above this limit short circuit to
UBatt is detected. The output cur-
rent is limited to approximately this
value if the static current limitation
is configured. An error is stored
after tDiag (see 3.11.4). If the oper-
ation leads to an overtemperature
condition, a second protection
level (about 170°C) will change the
output into a low duty cycle PWM
(selective thermal shutdown with
restart) to prevent critical chip tem-
peratures.
Between -40°C and 150°C an
approximately linear characteristic
line can be assumed.
3.7.3.1 Maximum
Battery Volt-
age at Short
Circuit to Bat-
tery
See Note 1.11.1 C UOUT
15,16
36 V
3.7.4 Shuttoff Delay Shutoff delay of the power stages
after detection of SCB. For the
duration of tVoff current is limited to
maximum current.
B tVoff 60 215 µs
Data Sheet 53 V7, 2007-06-11
TLE 6244X
3.7.5 On Resis-
tance
TJ = 25°C:
TJ = 150°C:
TJ = -40°C:
A
A
A
Ron15,
16
Ron15,
16
Ron15,
16
150
270
120
220
390
170
280
480
210
m
m
m
For UUBatt 10V Ron is increased
up to 20%.
3.7.6 On /off Delay
Times
„On“
„Off“
( M e a s u r e m e n t w i t h o h m i c l o a d )
|tdon - tdoff|
B
B
B
C
C
tdon
tson
tdoff
tsoff
td
10
5
10
10
5
µs
µs
µs
µs
µs
switch-on slew rate
switch-off slew rate
C
C
son
soff
20
25
V/µs
V/µs
3.7.7 Leakage Cur-
rent
UVDD = 0V, UOUT15,16 = 14V
(leakage current of the DMOS,
diagnostic current = 0)
UVDD = 0V, UOUT15,16 = 24V
(leakage current of the DMOS,
diagnostic current = 0)
A
A
IOUT15
,16
IOUT15
,16
50
200
µA
µA
3.7.8 Clamping
3.7.8.1 Clamping
Voltage
IOUT15,16 = 0.2A UOUT15,
16
40 45 50 V
3.7.8.2 Maximum
Clamping En-
ergy
TC 110°C
Linear decreasing current,
fmax = 30Hz (see diagrams
E = f(I) on page 67)
IOUT15,16 3.0A C E 18 mJ
IOUT15,16 2.2A C E 20 mJ
IOUT15,16 1.5A C E 24 mJ
IOUT15,16 1.0A C E 40 mJ
3.7.8.3 Maximum
Clamping En-
ergy
TC 60°C
Linear decreasing current,
fmax = 30Hz
IOUT15,16 3.0A C E 20 mJ
IOUT15,16 1.0A C E 46 mJ
3.7.8.4 Maximum
Clamping En-
ergy with two
Outputs con-
nected in par-
allel
Each output 75% of the values of
3.7.8.2 resp. 3.7.8.3.
C
Data Sheet 54 V7, 2007-06-11
TLE 6244X
3.7.8.5 Maximum
Clamping En-
ergy at Load
Dump
For a maximum of 10 times during
ECU life (load dump with 400ms
and Ri = 2 over the load, e.g. 2W
lamp)
C E 50 mJ
3.7.8.6 Jump Start Each output 150% of the values of
3.7.8.3.
For a maximum of 10 jump starts
of 2 minutes each during ECU life.
C
3.7.8.7 Single pulse
TC 60°C
IOUT15, 16 0.6A, max 10 000
pulses
C E 50 mJ
3.8 Power Outputs
1.1A/45V
OUT7,8,
OUT17,18
In case of open input (parallel con-
trol) or missing power supply the
power stage is switched off. Paral-
lel connection of power stages is
possible.
3.8.1 Nominal Cur-
rent
for OUT7, 8, 17, 18 C IOUTi 1.1 A
3.8.2 Extended Cur-
rent Range
IOUT7,8,17,18 > 1.1A
Accumulated operating time C100 h
3.8.3 Maximum
Current
(Short Circuit
Shut down
Threshold
and static
current limita-
tion)
4.5V UUBatt 17V for OUT7, 8
4.5V UUBatt for OUT17,18
TJ = -40°C
TJ = 150°C
B
A
IOUTi
IOUTi
1.2
1.1
2.2
2.0
A
A
UUBatt > 21V only for OUT7,8
TJ = -40°C
TJ = 150°C
B
A
IOUTi
IOUTi
1.5
1.3
2.5
2.3
A
A
For OUT7, OUT8
Above this limit short circuit to
UBatt is detected. For the duration
of the shutoff delay time tVoff (see
3.8.4) the output current is limited
to approximately this value. If the
short circuit condition is still
present after tVoff, the outputs
OUT7/8 are switched off. An error
is stored after tDiag (see 3.11.4).
The same is true for OUT17
OUT18 if the static current limita-
tion is not enabled.
Data Sheet 55 V7, 2007-06-11
TLE 6244X
Between -40°C and 150°C an
approximately linear characteristic
line can be assumed.
Between 17V UUBatt 21V, the
short circuit shutdown threshold is
switched for OUT7/8
A power stage that is switched off
in case of SCB can be switched on
again by an off/on cycle at the cor-
responding input pin resp. by the
change of the state of the corre-
sponding bit for SPI or µsec-bus
by a DEL_DIA instruction or can
be released again by reset. If the
fault register is cleared before this
release (by a DEL_DIA instruc-
tion), a new fault entry of SCB is
immediately carried out, even if
SCB condition is no longer
present.
For OUT17, OUT18
Above this limit short circuit to
UBatt is detected. The output cur-
rent is limited to approximately this
value if the static current limitation
is configured. An error is stored
after tDiag (see 3.11.4). If the oper-
ation leads to an overtemperature
condition, a second protection
level (about 170°C) will change the
output into a low duty cycle PWM
(selective thermal shutdown with
restart) to prevent critical chip tem-
peratures
Between -40°C and 150°C an
approximately linear characteristic
line can be assumed.
3.8.3.1 Maximum
Battery Volt-
age at Short
Circuit to Bat-
tery
See Note 1.11.1 C UOUT
17,18
36 V
3.8.4 Shutoff Delay Shutoff delay of the power stages
after detection of SCB. For the
duration of tVoff current is limited to
maximum current.
B tVoff 60 215 µs
Data Sheet 56 V7, 2007-06-11
TLE 6244X
3.8.5 On Resis-
tance
TJ = 25°C
TJ = 150°C
TJ = -40°C
For UUBatt 10V Ron is increased up
to 20%; condition: UVDD > 4.5 V
For OUT8 only:
3.5V<(UVDD, UUBatt)<4.5V
TJ = 25°C
TJ = 150°C
TJ = -40°C
A
A
A
A
A
A
Ron7,8,
17,18
Ron7,8,
17,18
Ron7,8,
17,18
Ron
Ron
Ron
400
780
290
620
1200
450
780
1500
560
1300
2200
1050
m
m
m
m
m
m
3.8.6 On/off Delay
Times
„On“
„Off“
( M e a s u r e m e n t w i t h o h m i c l o a d )
|tdon - tdoff|
B
B
B
C
C
tdon
tson
tdoff
tsoff
td
10
5
10
10
5
µs
µs
µs
µs
µs
Switch-on slew rate
Switch-off slew rate
C
C
son
soff
25
40
V/µs
V/µs
3.8.7 Leakage Cur-
rent
For OUT7,8, OUT1718:
UVDD = 0V, UOUTi = 14V (leakage
current of the DMOS, diagnostic
current = 0)
UVDD = 0V, UOUTi = 24V (leakage
current of the DMOS, diagnostic
current = 0)
A
A
IOUTi
IOUTi
50
200
µA
µA
3.8.8 Clamping For OUT7,8, OUT17,18:
3.8.8.1 Clamping
Voltage
IOUTi = 0.2A A UOUTi 40 45 50 V
3.8.8.2 Maximum
Clamping En-
ergy
TC 110°C
Linear decreasing current,
fmax = 10Hz (see diagrams
E = f(I) on page 67)
IOUTi 0.6A
IOUTi 1.1A
C
C
E
E
10
7
mJ
mJ
3.8.8.3 Maximum
Clamping En-
ergy
TC 60°C
Linear decreasing current,
fmax = 10Hz
IOUTi 0.6
IOUTi 1.1A
C
C
E
E
12
8.5
mJ
mJ
Data Sheet 57 V7, 2007-06-11
TLE 6244X
3.8.8.4 Maximum
Clamping En-
ergy with two
Outputs con-
nected in par-
allel
Each output 75% of the values of
3.8.8.2 resp. 3.8.8.3.
C
3.8.8.5 Maximum
Clamping En-
ergy at Load
Dump
For a maximum of 10 times during
ECU life (load dump with 400ms
and Ri = 2 over the load)
C E 15 mJ
3.8.8.6 Jump Start Each output 150% of the values of
3.8.8.3.
For a maximum of 10 jump starts
of 2 minutes each during ECU life
C
Data Sheet 58 V7, 2007-06-11
TLE 6244X
3.9 SPI Interface
The timing of TLE6244X is defined as follows:
- The change at output (SO) is forced by the rising edge of the SCK signal.
- The input signal (SI) is sampled on the falling edge of the SCK signal.
- The data received during a writing access is taken over into the internal registers on the rising edge of the
SS
signal, if exactly 16 SPI clocks have been counted during SS = active.
(Also: Only if exactly 16 SPI clocks have been counted the instruction DEL_DIA resets the diagnostic regis-
ters.)
SO
SI MSB IN
Bit (n-4)...1
LSB IN
Bit (n-4)...1
1
4
56
SCK
SS
7
8
n = 16
9
10
3
2
Bit (n-3) Bit 0; LSB
tristate
Bit (n-3)Bit (n-2)
11
12
X see 3.9.5
14
13
Data Sheet 59 V7, 2007-06-11
TLE 6244X
3.9.1 Input SCK SPI clock input
3.9.1.1 Low Level B USCKL 1.0 V
3.9.1.2 High Level B USCKH 2.0 V
3.9.1.3 Hysteresis C USCK 0.1 0.6 V
3.9.1.4 Input Capacity C CSCK 10 pF
3.9.1.5 Input Current Pull up current source connected
to VDD
A-ISCK 10 20 50 µA
3.9.2 Input SS Slave select signal
3.9.2.1 Low Level TLE6244X is selected B USSL 1.0 V
3.9.2.2 High Level B USSH 2.0 V
3.9.2.3 Hysteresis C USS 0.1 0.6 V
3.9.2.4 Input Capaci-
ty
C CSS 10 pF
3.9.2.5 Input Current Pull up current source connected
to VDD
A-ISS 10 20 50 µA
3.9.3 Input SI SPI data input
3.9.3.1 Low Level B USIL 1.0 V
3.9.3.2 High Level B USIH 2.0 V
3.9.3.3 Hysteresis C USI 0.1 0.6 V
3.9.3.4 Input Capaci-
ty
C CSI 10 pF
3.9.3.5 Input Current Pull up current source connected
to VDD
A-ISI 10 20 50 µA
3.9.4 Output SO Tristate output of the TLE6244X
(SPI output);
On active reset (RST) output SO is
in tristate.
3.9.4.1 Low Level ISO = 2mA A USOL 0.4 V
3.9.4.2 High Level ISO = -2mA A USOH UVDD
- 1.0
V
3.9.4.3 Capacity Capacity of the pin in tristate C CSO 10 pF
3.9.4.4 Leakage Cur-
rent
In tristate A ISO -10 10 µA
Data Sheet 60 V7, 2007-06-11
TLE 6244X
3.9.5 Timing 1. Cycle-Time
(referred to master)
2. Enable Lead Time
(referred to master)
3. Enable Lag Time
(referred to master)
4. Data Valid CL = 50pF (5 MHz)
Data Valid CL = 200pF (2MHz)
(referred to TLE6244X)
5. Data Setup Time
(referred to master)
6. Data Hold Time
(referred to master)
7. Disable Time
(referred to TLE6244X)
8. Transfer Delay
(referred to master)
9. Select time
(referred to master)
10. Access time
(referred to master)
11. Serial clock high time
(referred to master)
12. Serial clock low time
13. Disable Lead Time
14. Disable Lag Time
B
C
C
C
C
C
C
C
C
C
C
C
C
C
C
t cyc
t lead
t lag
t v
t v
t su
t h
t dis
t dt
t sel
t acc
tSCKH
tSCKL
tdld
tdlg
200
100
150
50
20
150
50
8.35
50
120
250
250
100
150
100
ns
ns
ns
ns
ns
ns
ns
ns
ns
nsec
µsec
ns
ns
ns
ns
Data Sheet 61 V7, 2007-06-11
TLE 6244X
3.10 µsec-bus
Notes for the timing:
Timing definitions are starting or ending at a voltage level of 1V (Low Level) resp. 2V (High Level).
During SSY = high the clock at FCL may be interrupted, i.e. there is no need for a clock during SSY = high.
The clock signal may remain on high or low statically during SSY = high.
A rising edge at SSY and a falling edge at FCL must not occur simultaneously!
On the rising edge of SSY the 16 bits clocked in TLE6244X by the last 16 falling edges at FCL are latched.
3.10.1 Input FCL,
FDA, SSY
µsec-bus interface pins
3.10.1.1 Low Level B UFCLl
UFDAl
USSYl
1.0 V
3.10.1.2 High Level B UFCLh
UFDAh
USSYh
2.0 V
3.10.1.3 Hysteresis
CUFCL
UFDA
USSY
0.1 0.6 V
3.10.1.4 Input Ca-
pacity
C CFCL
CFDA
CSSY
10 pF
3.10.1.5 Input Cur-
rent
Pull up current source connected
to VDD
A IFCL
IFDA
ISSY
510 20 µA
3.10.2 Timing Cycle Time C tCYC 62 nsec
Data setup time C tsetup 10 nsec
Data hold time C thold 10 nsec
Switching time on FCL
fFCL < 10MHz
C tswitch 30 nsec
SSY/IN7
FCL/IN16
FDA/IN6
tswitch
thold
tsetup
tshold
tcyc
Timing µsec-bus
tSF
Data Sheet 62 V7, 2007-06-11
TLE 6244X
Switching time on FCL
fFCL > 10MHz
C tswitch 8nsec
Select hold time C tshold 25 10 nsec
FCL Low time
FCL High time
C
C
tFCLL
tFCLH
25
25
nsec
SSY Low time
SSY High time
C
C
tSSYL
tSSYH
25
25
nsec
Time between rising edge of SSY
and next falling edge of FCL
CtSF 8nsec
3.11 Diagnostics
3.11.1 Diagnostic
Thresholds
Power Stages
3.11.1.1 Open Load
(OL)
Output turned off B UOUT1..
18
UVDD
-
0.5V
UVDD UVDD
+
0.5V
V
3.11.1.2 Short to
Ground
(SCG)
Output turned off B UOUT1...
18
0.54
*
UVDD
-
0.5V
0.54
*
UVDD
0.54
*
UVDD
+
0.5V
V
3.11.1.3 Short to Bat-
tery (SCB)
See 3.5.3, 3.6.3, 3.7.3, 3.8.3
3.11.1.4 Overtem-
perature
Output turned on
Individually for each stage
B TJ150 °C
3.11.2 Bias Voltage
Open Load
Power Stages
Output turned off, IOUT1...18 = 0 A UOUT1...
18
0.6 *
UVDD
0.7 *
UVDD
0.76*
UVDD
V
3.11.3 Diagnostic
Currents
Power Stages
4.5V UVDD 5.5V, output turned
off
UOUT1...18 = 14V (diagnostic cur-
rent incl. leakage current)
UOUT1...18 = 0V
UOUT1...18 = OL-Threshold
UOUT1...18 = SCG-Threshold
A
A
C
C
IOUT
-IOUT
IOUT
-IOUT
270
50
220
40
580
130
980
250
980
250
µA
µA
µA
µA
Data Sheet 63 V7, 2007-06-11
TLE 6244X
3.11.4 Filtering
Time Power
Switches
Time from occurrence of one of
the errors ’short to ground’, ’open
load’ or ’short to battery’ until the
fault is entered into the corre-
sponding diagnostic register.
Time from occurrence of OT until
the information is entered into the
corresponding diagnostic register.
B
C
tDiag
tDiatOT
60
3
240
30
µs
µs
3.11.5 Diagnostic
Threshold
UBatt
Bit Ubatt in DIA_REG5 Uth,UB 1 9 V
3.12 Reverse Cur-
rents
3.12.1 Reverse Cur-
rent at
OUT1...18
without Sup-
ply Voltage
UVDD 1V
Static
Dynamic
(Test pulse 1 according to ISO:
100V, Ri = 10W, 2ms)
C
C
C
C
C
C
C
C
-IO1...6
-IO9...16
-IO7,8
-IO17,18
-IO1...6
-IO9...16
-IO7,8
-IO17,18
3
3
0.8
0.8
10
10
1.5
1.5
A
A
A
A
A
A
A
A
3.12.2 Reverse Cur-
rent at
OUT1...OUT18
in Operation
Mode
4.5V UVDD 5.5V
Pulsed power stage.
Neighboring stages, reset, input
signals of the power stages, VDD-
monitoring, SPI interface (incl. reg-
isters) and µsec-bus must not be
disturbed. Diagnostics of fault con-
ditions at neighboring stages is still
possible. Control bits in the SPI
registers (serial control of power
stages are not disturbed).
Open load failure at neighboring
stages may be detected as short
to ground
Open load failure at neighboring
stages are not detected as short
to ground
C
C
C
C
C
C
C
-IO1...16
-IO7,8
-IO17,18
-IO1...4
-IO5...16
-IO7,8
-IO17,18
1
0.3
0.3
0.5
0.25
0.3
0.3
A
A
A
A
A
A
A
Destruction limit C
C
C
C
-IO1...6
-IO9...16
-IO7,8
-IO17,18
3
3
0.8
0.8
A
A
A
A
Data Sheet 64 V7, 2007-06-11
TLE 6244X
3.13 VDD-Monitor-
ing ABE
Bidirectional: open drain output /
input with pull up current source
An external current limitation
must guarantee IABE < 5 mA for
any UABE
3.13.1 Output UABE = Low (after tglitch)for:
2.7V < UVDD < 4.5V... 4.7V or
5.3V... 5.5V < UVDD < 36V or
Testmode (see 3.13.5 or 3.13.6) or
Pin GND_ABE is open
3.13.1.1 Low Level UVDD > 4.5V, IABE<5mA
UVDD = 2.7V, IABE<1mA,
in case of less current, ohmic
behavior can be assumed
A
A
UABE
UABE
1.2
1.0
V
V
3.13.1.2 Maximum
Voltage
No current recovery on VDD,
UBatt and the logical pins
(SS,SCK,SI,SO,INx,RST) in case
of short to battery at ABE (up to
36V)
C UABE 36 V
3.13.2 Input
3.13.2.1 Low Level B UABEL 0.3 *
UVDD
V
3.13.2.2 High Level B UABEH 0.7 *
UVDD
V
3.13.2.3 Hysteresis CUABE 0.2 1.0 V
3.13.2.4 Input Cur-
rent
Pull up current source connected
to VDD
-0.25V UABE UVDD-1.7 V
-0.25V UABE UVDD-1.5 V
-0.3V UABE < -0,25V
A
C
C
-IABE
-IABE
-IABE
20
15
40
40
100
100
300
µA
µA
µA
3.13.3 Overvoltage
Threshold
Voltage referred to GND_ABE B VDDth_h 5.3 5.5 V
Data Sheet 65 V7, 2007-06-11
TLE 6244X
3.13.4 Undervolt-
age Thresh-
old
Voltage referred to GND_ABE B VDDth_l 4.5 4.7 V
3.13.5 Test Mode:
Reducing the
Overvoltage
Threshold
Voltage referred to GND_ABE B VDDth_h 4.5 4.7 V
3.13.6 Test Mode:
Lifting the
Undervoltage
Threshold
Voltage referred to GND_ABE B VDDth_l 5.3 5.5 V
3.13.7 Suppres-
sion of
Glitches
Periodical alternating between
overvoltage and normal operating
voltage with T< 50µs and overvolt-
age duration > 5µs leads to over-
voltage detection.
If the transition from undervoltage
to overvoltage is faster than the fil-
tering time tglitch, the filtering time
tglitch for overvoltage detection is
not started again. The same is
valid for reverse order.
A tglitch 50 215 µs
3.13.8 GND_ABE
3.13.8.1 Permissible
Offset be-
tween
GND_ABE
and GND
CUGND 0.3 V
3.13.8.2 Bond Lift /
Solder Crack
on
GND_ABE
Pin ABE goes LOW
(see 3.13.1.1).
The power stages are switched off.
The over- and undervoltage
thresholds are increased by typi-
cally 700mV for TA = 25°C.
Data Sheet 66 V7, 2007-06-11
TLE 6244X
3.14 Clamping Energy
3.14.1 E = f(IOUT1...6), 2.2A Power Stages with 70V Clamping
3.14.2 E = f (IOUT9...A14), 2.2A Power Stages with 45V Clamping
+
+
+
+
+
0 0.5 1.0 1.5 2.0
0
10
20
30
IMAX / A
Injector Drivers
Clamping Voltage 64... 76V
+
TCmax = 110°C
fmax = 50 Hz
E / mJ
+
+
+
++
00.51.01.52.0
0
10
20
30
IMAX / A
2.2A Power Stage
Clamping Voltage 40... 50V
E / mJ
fmax = 30 Hz
TCmax = 110°C
Data Sheet 67 V7, 2007-06-11
TLE 6244X
3.14.3 E = f(IOUT7,8,17,18), 1100mA Power Stages with 45V Clamping
3.14.4 E = f(IOUT15, OUT16), 3.0A Power Stages with 45V Clamping
+
+
+
0 0.25 0.5 0.75 1.0
0
5
10
15
E / mJ
IMAX / A
1.1A Power Stage
Clamping Voltage 40... 50V
fmax = 10 Hz
TCmax = 110°C
+
0 0.5 1.0 1.5 2.0
0
10
20
30
3.0A Power Stage
Clamping Voltage 40... 50V
E / mJ
fmax = 30 Hz
TCmax = 110°C
2.5 IMAX / A
+
+
+
Data Sheet 68 V7, 2007-06-11
TLE 6244X
4. ESD
All pins of the IC have to be protected against electrostatic discharge (ESD) by appropriate pro-
tection
components.
The integrated circuit has to meet the requirements of the „Human Body Model“ with UC = 2kV,
C = 100pF and R2 = 1,5k without any defect or destruction of the IC.
Appropriate measures to reach the required ESD capability have to be coordinated.
The ESD capability of the IC has to be verified by the following test circuit.
UC = + 2kV
R1 = 100k
R2 = 1,5k
C = 100pF
Number of pulses each pin: 18 in all
Frequency: 1Hz
Arrangement and performance:
The requirements of MIL883D Method 3015 (latest revision) have to be fulfilled.
DC-Volt-
meter
R1 R2
CDUT
S2
S1
S3
US
(1)(2)
VUC
Data Sheet 69 V7, 2007-06-11
TLE 6244X
5. Package Outline
Green Product (RoHS compliant)
To meet the world-wide customer requirements for environmentally friendly products and to be
compliant with government regulations the device is available as a green product. Green
products are RoHSCompliant (i.e Pb-free finish on leads and suitable for Pb-free soldering
according to IPC/JEDEC JSTD-020).
Data Sheet 70 V7, 2007-06-11
TLE 6244X
6. Revision History
TLE 6244X
Revision History: 2007-06-11 V7 (previous Version V6 - Preliminary Data Sheet)
Changes to V7
2007-06-11 Status to Final
2007-06-11 typo: MQFM > MQFP
Data Sheet 71 V7, 2007-06-11
TLE 6244X
Edition 2007-06-11
Published by
Infineon Technologies AG
81726 Munich, Germany
© 6/11/07 Infineon Technologies AG
All Rights Reserved.
Legal Disclaimer
The information given in this document shall in no event be regarded as a guarantee of conditions or
characteristics. With respect to any examples or hints given herein, any typical values stated herein and/
or any information regarding the application of the device, Infineon Technologies hereby disclaims any
and all warranties and liabilities of any kind, including without limitation, warranties of non-infringement
of intellectual property rights of any third party.
Information
For further information on technology, delivery terms and conditions and prices, please contact the
nearest Infineon Technologies Office (www.infineon.com).
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Due to technical requirements, components may contain dangerous substances. For information on the
types in question, please contact the nearest Infineon Technologies Office.
Infineon Technologies components may be used in life-support devices or systems only with the express
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to cause the failure of that life-support device or system or to affect the safety or effectiveness of that
device or system. Life support devices or systems are intended to be implanted in the human body or to
support and/or maintain and sustain and/or protect human life. If they fail, it is reasonable to assume that
the health of the user or other persons may be endangered.