IRS20965
1
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© 2014 International Rectifier
February 21, 2014
CLASS D AUDIO DRIVER
Features
Hi-side and Lo-side independent floating PWM
input
Programmable bidirectional over-current
detection with self-reset function
Over current sensing output
Shoot-through prevention logic
High noise immunity
±100 V ratings deliver up to 500 W in output
power
3.3 V / 5 V logic compatible input
Operates up to 800 kHz
Typical Applications
Class D audio amplifier
Half bridge converter with digital controller
Product Summary
100 V
Gate driver
Io+
2.0 A
Io-
2.0 A
120 ns
500 ns
250 ns
Package Options
16-Lead SOIC
Typical Connection Diagram
(Please refer to Lead Assignments for correct pin configuration. This diagram shows electrical connections only.)
IRS20965
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© 2014 International Rectifier
February 21, 2014
Table of Contents
Page
Description
3
Qualification Information
4
Absolute Maximum Ratings
5
Recommended Operating Conditions
6
Electrical Characteristics
7
Waveform Definitions
9
Functional Block Diagram
11
Input/Output Pin Equivalent Circuit Diagram
12
Lead Definitions
13
Lead Assignments
13
Application Information and Additional Details
14
Package Details
16
Tape and Reel Details
17
Part Marking Information
18
Ordering Information
18
IRS20965
3
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© 2014 International Rectifier
February 21, 2014
Description
The IRS20965S is a high voltage, high speed MOSFET driver with floating PWM inputs designed for Class D
audio amplifier applications.
Bi-directional current sensing using RDS(ON) of the MOSFETs detects over current conditions during positive and
negative load currents without any external shunt resistors. An over current flag output provides over current
status without shutting down, enabling full external control over OCP protection sequences.
Independent HIN and LIN inputs offers independent control on HO and LO. Internal shoot-thru prevention logic
provides safe operation by eliminating simultaneous ON state in the output MOSFET.
IRS20965
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© 2014 International Rectifier
February 21, 2014
Qualification Information†
Qualification Level
Industrial††
Comments: This family of ICs has passed JEDEC’s
Industrial qualification. IR’s Consumer qualification level is
granted by extension of the higher Industrial level.
Moisture Sensitivity Level
SOIC16N
MSL2††† 260˚C
(per IPC/JEDEC J-STD-020)
ESD
Machine Model
Class B
(per JEDEC standard EIA/JESD22-A115)
Human Body Model
Class 2
(per EIA/JEDEC standard JESD22-A114)
IC Latch-Up Test
Class I, Level A
(per JESD78D)
RoHS Compliant
Yes
†
Qualification standards can be found at International Rectifier’s web site http://www.irf.com/
††
Higher qualification ratings may be available should the user have such requirements. Please contact your
International Rectifier sales representative for further information.
†††
Higher MSL ratings may be available for the specific package types listed here. Please contact your
International Rectifier sales representative for further information.
IRS20965
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© 2014 International Rectifier
February 21, 2014
Absolute Maximum Ratings
Absolute Maximum Ratings indicate sustained limits beyond which damage to the device may occur. All voltage
parameters are absolute voltages referenced to VSS; all currents are defined positive into any lead. The Thermal
Resistance and Power Dissipation ratings are measured under board mounted and still air conditions.
Symbol
Definition
Min.
Max.
Units
VB
High side floating supply voltage
-0.3
215
V
VS
High side floating supply voltage †
VB-20
VB+0.3
VHO
High side floating output voltage
Vs-0.3
VB+0.3
VCSH
CSH pin input voltage
Vs-0.3
VB+0.3
VCC
Low side fixed supply voltage †
-0.3
20
VLO
Low side output voltage
-0.3
VCC +0.3
VDD
Floating input supply voltage
-0.3
210
VSS
Floating input supply voltage †
(See IDDZ)
VDD+0.3
VHIN
PWM input voltage
VSS -0.3
VDD+0.3
VLIN
PWM input voltage
VSS -0.3
VDD+0.3
VCSD
CSD pin input voltage
VSS -0.3
VDD+0.3
VOC
OC pin input voltage
VSS -0.3
VDD+0.3
VOCSET
OCSET pin input voltage
-0.3
VCC +0.3
VREF
VREF pin voltage
-0.3
VCC +0.3
IDDZ
Floating input supply zener clamp current †
-
10
mA
ICCZ
Low side supply zener clamp current †
-
10
IBSZ
Floating supply zener clamp current †
-
10
IOREF
Reference output current
-
5
dVs/dt
Allowable Vs voltage slew rate
-
50
V/ns
dVss/dt
Allowable Vss voltage slew rate ††
-
50
dVss/dt
Allowable Vss voltage slew rate upon power-up †††
-
50
V/ms
Pd
Maximum power dissipation
-
1.0
W
RthJA
Thermal resistance, Junction to ambient
-
115
˚C/W
TJ
Junction Temperature
-
150
˚C
TS
Storage Temperature
-55
150
TL
Lead temperature (Soldering, 10 seconds)
-
300
†
VDD - VSS, VCC - COM, and VB - VS contain internal shunt zener diodes. Please note that the voltage
ratings of these can be limited by the clamping current.
††
For the rising and falling edges of step signal of 10V. VSS = 15V to 200V.
†††
VSS ramps up from 0V to 200V.
IRS20965
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© 2014 International Rectifier
February 21, 2014
Recommended Operating Conditions
For proper operation, the device should be used within the recommended conditions below. The Vs and COM
offset ratings are tested with supplies biased at IDD = 3mA, VCC = 12V and VB - VS = 12V.
Symbol
Definition
Min.
Max.
Units
VB
High side floating supply absolute voltage
Vs+10
Vs+14
V
VS
High side floating supply offset voltage
†
200
IDDZ
Floating input supply zener clamp current
1
5
mA
VOC
OC pin input voltage
VSS
VDD
V
VSS
Floating input supply absolute voltage
0
100
VHO
High side floating output voltage
VS
VB
VCC
Low side fixed supply voltage
10
15
VLO
Low side output voltage
0
VCC
VHIN
HIN PWM input voltage
VSS
VDD
VLIN
LIN PWM input voltage
VSS
VDD
VCSD
CSD pin input voltage
VSS
VDD
IOREF
Reference output current to COM ††
0.3
0.8
mA
VOCSET
OCSET pin input voltage
0.5
5
V
TA
Ambient Temperature
-40
125
˚C
†
Logic operational for Vs equal to -5V to +200V. Logic state held for Vs equal to -5V to -VBS.
††
Nominal voltage for VREF is 5V. IOREF of 0.3 – 0.8 mA dictates total external resistor value on VREF to
be 6.3k to 16.7kΩ.
IRS20965
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© 2014 International Rectifier
February 21, 2014
Electrical Characteristics
VCC, VBS= 12 V, IDD=3mA, VSS=20V, CL=1nF, STP=VCC and TA=25˚C unless otherwise specified.
Symbol
Definition
Min
Typ
Max
Units
Test Conditions
Low Side Supply
UVCC+
Vcc supply UVLO positive threshold
8.4
8.9
9.4
V
UVCC-
Vcc supply UVLO negative threshold
8.2
8.7
9.2
V
IQCC
Low side quiescent current
-
-
1
mA
VDT =Vcc
VCLAMPL
Low side zener diode clamp voltage
19.6
20.4
21.6
V
ICC=5mA
High Side Floating Supply
UVBS+
High side well UVLO positive
threshold
8.0
8.5
9.0
V
UVBS-
High side well UVLO negative
threshold
7.8
8.3
8.8
V
IQBS
High side quiescent current
-
-
1
mA
ILKH
High to Low side leakage current
-
-
50
µA
VB=VS =200V
VCLAMPH
High side zener diode clamp voltage
14.7
15.3
16.2
V
IBS=5mA
Floating Input Supply
UVDD+
VDD, VSS floating supply UVLO
positive threshold
8.2
8.7
9.2
V
VSS =0V
UVDD-
VDD, VSS floating supply UVLO
negative threshold
7.7
8.2
8.7
V
VSS =0V
IQDD
Floating Input quiescent current
-
-
1
mA
VDD=9.5V +Vss
VCLAMPM
Floating Input zener diode clamp
voltage
9.8
10.2
10.8
V
IDD=5mA
ILKM
Floating input side to Low side
leakage current
-
-
50
µA
VDD=VSS =200V
Floating PWM Input
VIH
Logic “1” input threshold voltage
2.3
1.9
-
V
VIL
Logic “0” input threshold voltage
-
1.9
1.5
V
IIN+
Logic “1” input bias current
-
-
40
µA
VIN =3.3V
IIN-
Logic “0” input bias current
-
-
1
µA
VIN = VSS
IRS20965
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© 2014 International Rectifier
February 21, 2014
Electrical Characteristics (cont’d)
VCC,VBS= 12 V, IDD=3mA, VSS=20V, CL=1nF, STP=VCC and TA=25˚C unless otherwise specified.
Protection
VREF
Reference output voltage
4.8
5.1
5.4
V
IOREF =0.5mA
VthOCL
Low side OC threshold in Vs
1.1
1.2
1.3
V
OCSET=1.2V
VthOCH
High side OC threshold in VCSH
1.1+ Vs
1.2+ Vs
1.3+ Vs
V
Vth1
CSD pin shutdown release
threshold
0.62 x VDD
0.70 x VDD
0.78 x VDD
V
VSS =0V
Vth2
CSD pin self reset threshold
0.26 x VDD
0.30 x VDD
0.34 x VDD
V
VSS =0V
ICSD+
CSD pin charge current
70
100
130
µA
VSD = VSS +5V
ICSD-
CSD pin discharge current
70
100
130
µA
VSD = VSS +5V
IOCC
OC output sink current
10
-
-
mA
Voc=1V
1
-
-
mA
Voc=0.1V
tOCL
Propagation delay time from Vs>
VthOCL to Shutdown
-
-
500
ns
tOCH
Propagation delay time from VCSH
> VthOCH to Shutdown
-
-
500
ns
PWOC
OC output minimum pulse width
1
-
-
µs
Gate Driver
Io+
Output high short circuit
current (Source)
2.0
-
A
Vo=0V, PW<10µS
Io-
Output low short circuit current
(Sink)
2.0
-
A
Vo=12V, PW<10µS
VOL
Low level output voltage
LO – COM, HO - VS
-
-
0.1
V
VOH
High level output voltage
VCC – LO, VB - HO
-
-
1.4
V
Io=0A
tr
Turn-on rise time
-
15
-
ns
tf
Turn-off fall time
-
15
-
ns
ton_1
High and low side turn-on
propagation delay, floating inputs
-
120
-
ns
VS = 100V,
VSS = 100V
toff_1
High and low side turn-off
propagation delay, floating inputs
-
120
-
ns
ton_2
High and low side turn-on
propagation delay, non-floating
inputs
-
130
-
ns
toff_2
High and low side turn-off
propagation delay, non-floating
inputs
-
130
-
ns
DT
Intrinsic dead-time: LO turn-off to
HO turn-on (DTLO-HO) & HO turn-
off to LO turn-on (DTHO-LO)
0
10
20
ns
PWmin
Minimum pulse width for outputs to
respond. Positive or Negative.
-
25
-
ns
VS = COM
VSS = COM
OWmin
Allowable LO/HO over wrap
10
-
-
ns
IRS20965
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© 2014 International Rectifier
February 21, 2014
Waveform Definitions
Figure 1: Timing Diagram
Figure 2: Deadtime Waveform Definitions
IRS20965
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© 2014 International Rectifier
February 21, 2014
Figure 3: CSD to Shutdown Waveform Definitions
Figure 4: VS > VthOCL to Shutdown Waveform
Figure 5: VCSH > VthOCH to Shutdown Waveform
IRS20965
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© 2014 International Rectifier
February 21, 2014
Functional Block Diagram
IRS20965
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© 2014 International Rectifier
February 21, 2014
Input/Output Pin Equivalent Circuit Diagrams:
IRS20965
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© 2014 International Rectifier
February 21, 2014
Lead Definitions
Pin #
Symbol
Description
1
VDD
Floating input positive supply
2
CSD
Shutdown timing capacitor, referenced to VSS
3
OC
Over current warning output, open drain referenced to VSS
4
HIN
PWM input, in phase with HO, referenced to VSS
5
LIN
PWM input, in phase with LO, referenced to VSS
6
VSS
Floating input supply return
7
VREF
5V reference output for setting OCSET, reference to COM
8
OCSET
Low side over current threshold setting, referenced to COM
9
COM
Low side supply return
10
LO
Low side output
11
VCC
Low side logic supply
12
STP
Shoot-thru prevention logic override (VCC: enabled, COM: disabled)
13
VS
High side floating supply return
14
HO
High side output
15
VB
High side floating supply
16
CSH
High side over current sensing input, referenced to VS
Lead Assignments
VDD
CSD
OC
OCSET
LO
HIN
LIN
VCC
STP
VREF
HO
VS
VSS
1
2
3
4
5
6
7
8
CSH
16
15
14
13
12
11
10
9
VB
IRS20965
COM
SOIC16N
IRS20965
14
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© 2014 International Rectifier
February 21, 2014
Package Details: SOIC16N
IRS20965
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© 2014 International Rectifier
February 21, 2014
Tape and Reel Details: SOIC16N
CARRIER TAPE DIMENSION FOR 16SOICN
Code Min Max Min Max
A 7.90 8.10 0.311 0.318
B 3.90 4.10 0.153 0.161
C 15.70 16.30 0.618 0.641
D 7.40 7.60 0.291 0.299
E 6.40 6.60 0.252 0.260
F 10.20 10.40 0.402 0.409
G 1.50 n/a 0.059 n/a
H 1.50 1.60 0.059 0.062
REEL DIMENSIONS FOR 16SOICN
Code Min Max Min Max
A 329.60 330.25 12.976 13.001
B 20.95 21.45 0.824 0.844
C 12.80 13.20 0.503 0.519
D 1.95 2.45 0.767 0.096
E 98.00 102.00 3.858 4.015
F n/a 22.40 n/a 0.881
G 18.50 21.10 0.728 0.830
H 16.40 18.40 0.645 0.724
Metric
Imperial
Metric
Imperial
E
F
A
C
D
G
A
B
H
NOTE : CONTROLLING
DIMENSION IN MM
LOADED TAPE FEED DIRECTION
A
H
F
E
G
D
B
C
IRS20965
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© 2014 International Rectifier
February 21, 2014
Part Marking Information
Ordering Information
Base Part Number
Package Type
Standard Pack
Complete Part Number
Form
Quantity
IRS20965SPBF
Tube/Bulk
45
IRS20965SPBF
Tape and Reel
2500
IRS20965STRPBF
The information provided in this document is believed to be accurate and reliable. However, International Rectifier assumes no
responsibility for the consequences of the use of this information. International Rectifier assumes no responsibility for any infringement of
patents or of other rights of third parties which may result from the use of this information. No license is granted by implication or otherwise
under any patent or patent rights of International Rectifier. The specifications mentioned in this document are subject to change without
notice. This document supersedes and replaces all information previously supplied.
For technical support, please contact IR’s Technical Assistance Center
http://www.irf.com/technical-info/
WORLD HEADQUARTERS:
SO16N
233 Kansas St., El Segundo, California 90245
Tel: (310) 252-7105
IRS20965S
IR logo
YWW ?
Part number
Date code
Pin 1
Identifier Lot Code
(Prod mode –
4 digit SPN code)
Assembly site code
Per SCOP 200-002
? XXXX
MARKING CODE
Lead Free Released
Non-Lead Free Released
?
P