December 2013
© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com
FAN3268Rev. 1.0.3 1
FAN3268 —2 A Low-Volta g e PMOS -NMOS Bridge Dr iver
FAN3268
2 A Low-Voltage PMOS-NMOS Bridge Dri ver
Features
4.5 V to 18 V Operating Range
Drives High-Side PMOS and Low-Side NMOS in
Motor Control or Buck Step-Down Applications
Inverting Channel B Biases High-Side PMOS
Device Off (with internal 100 kΩ Resistor) when
VDD is below UVLO Threshold
TTL Input Thresholds
2.4 A Sink / 1.6 A Source at VOUT=6 V
Internal Resistors Turn Driver Off If No Inputs
MillerDrive™ Technology
8-Lead SOIC Package
Rated from –40°C to +125°C Ambient
Automotive Qualified to AEC-Q100 (F085 Version)
Applications
Motor Control with PMOS / NMOS Half-Bridge
Configuration
Buck Converters with High-Side PMOS Device;
100% Duty Cycle Operation Possible
Logic-Controlled Load Circuits with High-Side
PMOS Switch
Automotive-Qualified Systems (F085 version)
Description
The FAN3268 dual 2 A gate driver is optimized to drive
a high-side P-channel MOSFET and a low-side N-
channel MOSFET in motor control applications
operating from a voltage rail up to 18 V. The driver has
TTL input thresholds and provides buffer and level
translation functions from logic inputs. Internal circuitry
provides an under-voltage lockout function that
prevents the output switching devices from operating if
the VDD supply voltage is below the operating level.
Internal 100 kΩ resistors bias the non-inverting output
low and the inverting output to VDD to keep the external
MOSFETs off during startup intervals when logic control
signals may not be present.
The FAN3268 driver incorporates MillerDrive™
architecture for the final output stage. This bipolar-
MOSFET combination provides high current during the
Miller plateau stage of the MOSFET turn-on / turn-off
process to minimize switching loss, while providing rail-
to-rail voltage swing and reverse current capability.
The FAN3268 has two independent enable pins that
default to on if not connected. If the enable pin for non-
inverting channel A is pulled low, OUTA is forced low; if
the enable pin for inverting channel B is pulled low,
OUTB is forced high. If an input is left unconnected,
internal resistors bias the inputs such that the external
MOSFETs are off.
Related Resources
AN-6069Application Review and Comparative
Evaluation of Low-Side Gate Drivers
MOTOR
C
BYP
1
2
3
VDDGND
ENB
4
8
7
6
5
B
A
ENA
+VRAIL (4.518V)
Controller
FAN3268
Figure 1. Typical Motor Drive Application
© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com
FAN3268 Rev. 1.0.3 2
FAN3268 —2 A Low-Volta g e PMOS -NMOS Bridge Dr iver
Ordering Information
Part Nu m b er Logic Input Threshold Packing Method
FAN3268TMX Non-Inverting Channel and Inverting
Channel + Dual Enables TTL 2,500 Units on
Tape & Reel
FAN3268TMX_F085(1) Non-Inverting Channel and Inverting
Channel + Dual Enables TTL 2,500 Units on
Tape & Reel
1. Qualif i ed t o AEC-Q100
Package Outline
2
3
8
6
1
4
7
5
ENA
INA
GND
INB
ENB
OUTA
VDD
OUTB
Figure 2. Pin Configuration (Top View)
Thermal Characteristics(2)
Package
Θ
JL(3)
Θ
JT(4)
Θ
JA(5)
Ψ
JB(6)
Ψ
JT(7) Units
8-Pin Small Outline Integrated Circuit (SOIC) 40 31 89 43 3 °C/W
Notes:
2. Estim ates derived from thermal s i mulat i on; actual values depend on the application.
3. Theta_J L (ΘJL): T hermal res i stance bet ween the s emic onductor junc tion and the bot t om surface of al l the leads (including any
thermal pad) that are typically sol dered t o a PCB.
4. Theta_J T (ΘJT): T hermal resi stance between the sem i conductor j unction and t he t op surface of the package, assuming it is
held at a unif orm temperature by a top-s i de heatsink .
5. Theta_J A (ΘJA): Thermal resi stance between junction and ambient, dependent on the P CB design, heat s i nking, and airflow.
The value given is f or natural convection with no heats i nk using a 2S 2P board, as specif i ed i n JEDEC standards JESD51-2,
JESD51-5, and JESD51-7, as appropriate.
6. Psi_JB (ΨJB): Thermal charac terization parameter providing correlation bet ween semic onduc tor junct i on temperature and an
applicat i on c i rcuit board ref erenc e poi nt for the t hermal environment def i ned i n Note 5. For the SOIC-8 package, the board
reference is defined as t he PCB copper adj acent to pi n 6.
7. Psi_JT (ΨJT): Therm al c haracterizati on parameter providi ng correlation bet ween the s emic onductor junc tion temperature and
the center of the top of t he package for the therm al envi ronment def i ned i n Not e 5.
© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com
FAN3268 Rev. 1.0.3 3
FAN3268 —2 A Low-Volta g e PMOS -NMOS Bridge Dr iver
Pin Definitions
Pin# Name Description
1 ENA Enable Input for Channel A. Pull pin low to inhibit driver A. ENA has TTL thresholds.
8 ENB Enable Input for Channel B. Pull pin low to inhibit driver B. ENB has TTL thresholds.
3 GND Ground. Common ground reference for input and output circuits.
2 INA Input to Channel A.
4 INB Input to Channel B.
7 OUTA Gate Drive Output A: Held low unless required input(s) are present and VDD is above the UVLO
threshold.
5
OUTB
Gate Drive Output B (inverted from the input): Held high unless required input is present and VDD
is above UVLO threshold.
6 VDD Supply Voltage. Provi des power to the IC.
Output Logi c
FAN3268 (Channel A) FAN3268 (Channel B)
ENA INA OUTA ENB INB
OUTB
0 0(8) 0 0 0(8) 1
0 1 0 0 1 1
1(8) 0(8) 0 1(8) 0(8) 1
1(8) 1 1 1(8) 1 0
Note:
8. Default input signal if no external connection is made.
© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com
FAN3268 Rev. 1.0.3 4
FAN3268 —2 A Low-Volta g e PMOS -NMOS Bridge Dr iver
Block Diagram
6
VDD
7
VDD_OK
5
INA
2
100k
ENA
1
GND
3
VDD
UVLO
100k
8
VDD
ENB
INB
4
OUTA
100k
100k
100k
OUTB
100k
Figure 3. Block Diagram
© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com
FAN3268 Rev. 1.0.3 5
FAN3268 —2 A Low-Volta g e PMOS -NMOS Bridge Dr iver
Absol ute Maximum Rati ngs
Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be
operable above the recommended operating conditions and stressing the parts to these levels is not recommended.
In addition, extended exposure to stresses above the recommended operating conditions may affect device
reliability. The absolute maximum ratings are stress ratings only.
Symbol Parameter Min. Max. Unit
VDD VDD to GND -0.3 20.0 V
VEN ENA, ENB to GND GND - 0.3 VDD + 0.3 V
VIN INA, INB to GND GND - 0.3 VDD + 0.3 V
VOUT OUTA, OUTB to GND GND - 0.3 VDD + 0.3 V
TL Lead Soldering Temperature (10 Seconds) +260 ºC
TJ Junction Temperature -55 +150 ºC
TSTG Storage Temperature -65 +150 ºC
Recommended Operating Conditions
The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended
operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not
recommend exceeding them or designing to Absolute Maximum Ratings.
Symbol Parameter Min. Max. Unit
VDD Supply Voltage Range 4.5 18.0 V
VEN Enable Voltage (ENA, ENB) 0 VDD V
VIN Input Voltage (INA, INB) 0 VDD V
TA Operating Ambient Temperature -40 +125 ºC
© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com
FAN3268 Rev. 1.0.3 6
FAN3268 —2 A Low-Volta g e PMOS -NMOS Bridge Dr iver
Electrical Characteristics
Unless otherwise noted, VDD=12 V and TJ=-40°C to +125°C. Currents are defined as positive into the device and
negative out of the device.
Symbol Parameter Conditions Min. Typ. Max. Unit
SUPPLY
VDD Operating Range 4.5 18.0 V
IDD Supply Current Inputs / EN Not
Connected 0.75 1.20 mA
FAN3268T UVLO
VON Device Turn-On Voltage INA=ENA=VDD, INB=ENB=0 V 3.5 3.9 4.3 V
VOFF Device Turn-Off Voltage INA=ENA=VDD, INB=ENB=0 V 3.3 3.7 4.1 V
FAN3268TMX_F085 UVLO (Automotive-Qualified Versions)
VON Device Turn-On Voltage(12) INA=ENA=VDD, INB=ENB=0 V 3.3 3.9 4.5 V
VOFF Device Turn-Off Voltage(12) INA=ENA=VDD, INB=ENB=0 V 3.1 3.7 4.3 V
INPUT(9)
FAN3268T
VIL INx Logic Low Threshold 0.8 1.2 V
VIH INx Logic High Threshold 1.6 2.0 V
VHYS Logic Hysteresis Voltage 0.2 0.4 0.8 V
FAN3268TMX_F085 (Automotive-Qualified Versions)
VIL INx Logic Low Threshold(12) 0.8 1.2 V
VIH INx Logic High Threshold(12) 1.6 2.0 V
VHYS Logic Hysteresis Voltage(12) 0.1 0.4 0.8 V
Continued on the following page…
© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com
FAN3268 Rev. 1.0.3 7
FAN3268 —2 A Low-Volta g e PMOS -NMOS Bridge Dr iver
Electrical Characteristics (Continued)
Unless otherwise noted, VDD=12 V and TJ=-40°C to +125°C. Currents are defined as positive into the device and
negative out of the device.
Symbol Parameter Conditions Min. Typ. Max. Unit
ENABLE
VENL Enable Logic Low Threshold EN from 5 V to 0 V 0.8 1.2 V
VENH Enable Logic High Threshold EN from 0 V to 5 V 1.6 2.0 V
VHYS Logic Hysteresis Voltage(10) 0.4 V
RPU Enable Pull-up Resistance(10) 100
OUTPUT
ISINK Out Current, Mid-Voltage, Sinking(10) Out at VDD/2,
CLOAD=0.1 µF, f=1 kHz 2.4 A
ISOURCE Out Current, Mid-Voltage,
Sourcing(10) Out at VDD/2,
CLOAD=0.1 µF, f=1 kHz -1.6 A
IPK_SINK Out Current, Peak, Sinking(10) CLOAD=0.1 µF, f=1 kHz 3 A
IPK_SOURCE Out Current, Peak, Sourcing
CLOAD=0.1 µF, f=1 kHz -3 A
tRISE Output Rise Time(11) CLOAD=1000 pF 12 22 ns
tFALL Output Fall Time(11) CLOAD=1000 pF 9 17 ns
FAN3268T
tD1 Propagation Delay
0 - 5 VIN, 1 V/ns Slew Rate 7 14 25 ns
tD2 Propagation Delay (11) 0 - 5 VIN, 1 V/ns Slew Rate 10 19 34 ns
FAN3268TMX_F085 (Automotive-Qualified Versions)
tD1 Propagation Delay (11)(12) 0 - 5 VIN, 1 V/ns Slew Rate 7 14 32 ns
tD2 Propagation Delay
0 - 5 VIN, 1 V/ns Slew Rate 8 19 34 ns
VOH High Level Output Voltage(12) VOH=VDDVOUT, IOUT=1 mA 15 40 mV
VOL Low Level Output Voltage(12) IOUT=1 mA 10 25 mV
Notes:
9. EN inputs have TTL thresholds; refer to the ENABLE section.
10. Not tested in production.
11. See the Timing Diagrams of Figure 4 and Figure 5.
12. Apply only to Automotive Version(FAN3268TMX_F085)
Timing Diagrams
90%
10%
Output
Input
or
Enable
t
D1
t
D2
t
RISE
t
FALL
V
INL
V
INH
90%
10%
Output
t
D2
t
D1
t
FALL
t
RISE
V
INL
V
INH
Input
or
Enable
Figure 4. Non-Inverting
Figure 5. Inverting
© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com
FAN3268 Rev. 1.0.3 8
FAN3268 —2 A Low-Volta g e PMOS -NMOS Bridge Dr iver
Typical Performance Characteristics
Typical characteristics are provided at TA=25°C and VDD=12 V unless otherwise noted.
Figure 6. IDD (Static) vs. Supply Voltage(13) Figure 7. IDD (No-Load) vs. Frequency
Figure 8. IDD (1 nF Load) vs. Frequency Figure 9. IDD (Static) vs. Temperature(13)
Figure 10. Input Thresholds vs. Supply Voltage Figure 11. Input Thresholds vs. Temperature
© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com
FAN3268 Rev. 1.0.3 9
FAN3268 —2 A Low-Volta g e PMOS -NMOS Bridge Dr iver
Typical Performance Characteristics
Typical characteristics are provided at TA=25°C and VDD=12 V unless otherwise noted.
Figure 12. UVLO Threshold vs. Temperature Figure 13. Propagation Delays vs. Supply Voltage
Figure 14. Propagation Delays vs. Supply Voltage Figure 15. Propagation Delays vs. Temperature
Figure 16. Propagation Delays vs. Temperature
© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com
FAN3268 Rev. 1.0.3 10
FAN3268 —2 A Low-Volta g e PMOS -NMOS Bridge Dr iver
Typical Performance Characteristics
Typical characteristics are provided at TA=25°C and VDD=12 V unless otherwise noted.
Figure 17. Fall Time vs. Supply Voltage Figure 18. Rise Time vs. Supply Voltage
Figure 19. Rise and Fall Times vs. Temperature
Figure 20. Rise/Fall Waveforms with 1 nF Load Figure 21. Rise/Fall Waveforms with 10 nF Load
© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com
FAN3268 Rev. 1.0.3 11
FAN3268 —2 A Low-Volta g e PMOS -NMOS Bridge Dr iver
Typical Performance Characteristics
Typical characteristics are provided at TA=25°C and VDD=12 V unless otherwise noted.
Figure 22. Quasi-Static Source Current with VDD=12 V Figure 23. Quasi-Sta ti c Sink Current with VDD=12 V
Figure 24. Quasi-Static Source Current with VDD=8 V Figure 25. Quasi-Static Sink Current w i th V DD=8 V
Note:
13. For any inverting inputs pulled low, non-inverting inputs pulled high, or outputs driven high, static IDD increases by
the current flowing through the corresponding pull-up/down resistor shown in the block diagram in Figure 3.
Test Circuit
120µF
Al. El.
VDD
V
OUT
1µF
ceramic
4.7µF
ceramic
CLOAD
0.1µF
I
OUT
IN
1kHz
Current Probe
LECROY AP015
Figure 26. Quasi-Static IOUT / VOUT Test Circuit
© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com
FAN3268 Rev. 1.0.3 12
FAN3268 —2 A Low-Volta g e PMOS -NMOS Bridge Dr iver
Applications Information
Input Thresholds
The FAN3268 driver has TTL input thresholds and
provides buffer and level translation functions from logic
inputs. The input thresholds meet industry-standard
TTL-logic thresholds, independent of the VDD voltage,
and there is a hysteresis voltage of approximately 0.4 V.
These levels permit the inputs to be driven from a range
of input logic signal levels for which a voltage over 2 V
is considered logic high. The driving signal for the TTL
inputs should have fast rising and falling edges with a
slew rate of 6 V/µs or faster, so a rise time from 0 to
3.3 V should be 550 ns or less. W ith reduced slew rate,
circuit noise could cause the driver input voltage to
exceed the hysteresis voltage and retrigger the driver
input, causing erratic operation.
Static Supply Current
In the IDD (static) typical performance characteristics
(see Figure 6), the curve is produced with all inputs /
enables floating (OUT is low) and indicates the lowest
static IDD current for the tested configuration. For other
states, additional current flows through the 100 k
resistors on the inputs and outputs shown in the block
diagram (see Figure 3). In these cases , the actual static
IDD current is the value obtained from the curves plus
this additional current.
Mill er Drive™ Gate Drive Technology
FAN3268 gate drivers incorporate the MillerDrive™
architecture shown in Figure 1. For the output stage, a
combination of bipolar and MOS devices provide large
currents over a wide range of supply voltage and
temperature variations. The bipolar devices carry the
bulk of the current as OUT s wings between one and two
thirds VDD and the MOS devices pull the output to the
high or low rail.
The purpose of the MillerDrive™ architecture is to
speed up switching by providing high current during the
Miller plateau region when the gate-drain capacitance of
the MOSFET is being charged or discharged as part of
the turn-on / turn-off process.
For applications with zero voltage switching during the
MOSFET turn-on or turn-off interval, the driver supplies
high peak current for fast switching even though the
Miller plateau is not present. This situation often occurs
in synchronous rectifier applications because the body
diode is generally conducting before the MOSFET is
switched on.
The output pin slew rate is determined by VDD voltage
and the load on the output. It is not user adjustable, but
a series resistor can be added if a slower rise or fall
time at the MOSFET gate is needed.
Input
stage
VDD
VOUT
Figure 27. MillerDrive™ Output Architecture
Under-Voltage Lockout
Internal circuitry provides an under-voltage lockout
function that prevents the output switching devices from
operating if the VDD supply voltage is below the
operating level. W hen VDD is rising, but below the 3.9 V
operational level, internal 100 k resistors bias the non-
inverting output low and the inverting output to VDD to
keep the external MOSFETs off during startup intervals
when logic control signals may not be present. After the
part is active, the supply voltage must drop 0.2 V before
the part shuts down. This hysteresis helps prevent
chatter when low VDD supply voltages have noise from
the power switching.
VDD Bypass Capaci t or G uidelines
To enable this IC to turn a device on quickly, a local high-
frequency bypass capacitor CBYP with low ESR and ESL
should be connected between the VDD and GND pins
with minimal trace length. This capacitor is in addition to
bulk electrolytic capacitance of 10 µF to 47 µF commonly
found on driver and controller bias circuits.
A typical criterion for choosing the value of CBYP is to
keep the ripple voltage on the VDD supply to ≤5%. This
is often achieved with a value ≥20 times the equivalent
load capacitance CEQV, defined here as QGATE/VDD.
Ceramic capacitors of 0.1 µF to 1 µF or larger are
common choices, as are dielectrics, such as X5R and
X7R, with good temperature characteristics and high
pulse current capability.
If circuit noise affects normal operation, the value of
CBYP may be increased to 50-100 times the CEQV or
CBYP may be split into two capacitors. One should be a
larger value, based on equivalent load capacitance, and
the other a smaller value, such as 1-10 nF mounted
closest to the VDD and GND pins to carry the higher
frequency components of the current pulses. The
bypass capacitor must provide the pulsed current from
both of the driver channels and, if the drivers are
switching simultaneously, the combined peak current
sourced from the CBYP would be twice as large as when
a single channel is switching.
© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com
FAN3268 Rev. 1.0.3 13
FAN3268 —2 A Low-Volta g e PMOS -NMOS Bridge Dr iver
Layout and Connection Guideli nes
The FAN3268 gate driver incorporates fast-reacting
input circuits, short propagation delays, and powerful
output stages capable of delivering current peaks over
2 A to facilitate voltage transition times from under 10ns
to over 150 ns. The following layout and connection
guidelines are strongly recommended:
Keep high-current output and power ground paths
separate from logic and enable input signals and
signal ground paths. This is especially critical when
dealing with TTL-level logic thresholds at driver
inputs and enable pins.
Keep the driver as close to the load as possible to
minimize the length of high-current traces. This
reduces the series inductance to improve high-
speed switching, while reducing the loop area that
can radiate EMI to the driver inputs and
surrounding circuitry.
If the inputs to a channel are not externally
connected, the internal 100 k resistors indicated
on block diagrams command a low output (channel
A) or a high output (channel B). In noisy
environments, it may be necessary to tie inputs or
enables of an unused channel to VDD or GND
using short traces to prevent noise from causing
spurious output switching.
Many high-s peed power circuits can be susceptible
to noise injected from their own output or other
external sources, possibly causing output re-
triggering. These effects can be obvious if the
circuit is tested in breadboard or non-optimal circuit
layouts with long input, enable, or output leads. For
best results, make connections to all pins as short
and direct as possible.
The turn-on and turn-off current paths should be
minimized.
Operati onal W aveform s
Figure 28 shows startup waveforms for non-inverting
channel A. At power-up, the driver output for channel A
remains low until the VDD voltage reaches the UVLO turn-
on threshold, then OUT A operates in-phase with INA.
VDD
INA
OUTA
UVLO
Turn-on threshold
Figure 28. Non-Inverting Startup Waveforms
Figure 29 illustrates startup waveforms for inverting
channel B. At power-up, the driver output for channel B
is tied to VDD through an internal 100 resistor until
the VDD voltage reaches the UVLO turn-on threshold,
then OUTB operates out of phase with INB.
VDD
INB
OUTB
UVLO
Turn-on threshold
Figure 29. Inverting Startup Waveforms
© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com
FAN3268 Rev. 1.0.3 14
FAN3268 —2 A Low-Volta g e PMOS -NMOS Bridge Dr iver
Thermal Guidel i nes
Gate drivers used to switch MOSFETs and IGBTs at
high frequencies can dissipate significant amounts of
power. It is important to determine the driver power
dissipation and the resulting junction temperature in the
application to ensure that the part is operating within
acceptable temperature limits.
The total power dissipation in a gate driver is the sum of
two components, PGATE and PDYNAMIC:
PTOTAL=PGATE + PDYNAMIC (1)
Gate Driving Loss: The most significant power loss
results from supplying gate current (charge per unit
time) to switch the load MOSFET on and off at the
switching frequency. The power dissipation that
results from driving a MOSFET at a specified gate-
source voltage, VGS, with gate charge, QG, at
switching frequency, fSW, is determined by:
PGATE=QG • VGS fSW • n (2)
where n is the number of driver channels in use
(1 or 2).
Dynamic Pre-drive / Shoot-through Current: A
power loss resulting from internal current
consumption under dynamic operating conditions,
including pin pull-up / pull-down resistors, can be
obtained using the “IDD (No-Load) vs. Frequency”
graphs in Typical Performance Characteristics to
determine the current IDYNAMIC drawn from VDD
under actual operating conditions:
PDYNAMIC=IDYNAMIC • VDD • n (3)
Once the power dissipated in the driver is determined,
the driver junction rise with respect to circuit board can
be evaluated using the following thermal equation,
assuming ψJB was determined for a similar thermal
design (heat sinking and air flow):
TJ =PTOTAL ψJB + TB (4)
where:
TJ =driver junction temperature
ψJB =(psi) thermal characterization parameter relating
temperature rise to total pow er dissipation
TB =board temperature in location defined in
Note 2 under Thermal Resistance table.
As an example of a power dissipation calculation,
consider an application driving two MOSFETs with a
gate charge of 60 nC with VGS=VDD=7 V. At a switching
frequency of 500 kHz, the total power dissipation is:
PGATE=60nC • 7V • 500kHz • 2=0.42W (5)
PDYNAMIC=3m A • 7V • 2=0.042W (6)
PTOTAL=0.46W (7)
The SOIC-8 has a junction-to-board thermal
characterization parameter of ψJB=43°C/W . In a sys tem
application, the localized temperature around the device
is a function of the layout and construction of the PCB
along with airflow across the surfaces. To ensure
reliable operation, the maximum junction temperature of
the device must be prevented from exceeding the
maximum rating of 150°C; with 80% derating, TJ would
be limited to 120°C. Rearranging Equation 4 determines
the board temperature required to maintain the junction
temperature below 120°C:
TB=TJ - PTOTAL ψJB (8)
TB=120°C 0.46W • 43°C/W=100°C (9)
© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com
FAN3268 Rev. 1.0.3 15
FAN3268 —2 A Low-Voltage PMOS-NMOS Br idge Driver
Table 1. Related Products
Part
Number Type Gate
Drive(14)
(Sink/Src)
Input
Threshold Logic Package
FAN3111C Singl e 1 A +1.1 A / -0.9 A CMOS Single Channel of Dual -Input/Single-Output SOT23-5, MLP6
FAN3111E Si ngl e 1 A +1.1 A / -0.9 A External(15) Single Non-I nvert i ng Channel with E xternal Ref erenc e SOT23-5, MLP6
FAN3100C Singl e 2 A +2.5 A / -1.8 A CMOS Single Channel of Two-Input/One-Output SOT23-5, MLP6
FAN3100T Si ngl e 2 A +2.5 A / -1.8 A TTL Single Channel of Two-Input/One-Output SOT23-5, MLP 6
FAN3226C Dual 2 A +2.4 A / -1.6 A CMOS Dual Invert i ng Channels + Dual Enable SOIC8, MLP8
FAN3226T Dual 2 A +2.4 A / -1.6 A TTL Dual Invert i ng Channels + Dual Enable SOIC8, MLP8
FAN3227C Dual 2 A +2.4 A / -1.6 A CMOS Dual Non-Inverti ng Channel s + Dual Enable S O I C8, MLP 8
FAN3227T Dual 2 A +2.4 A / -1.6 A TTL Dual Non-Inverting Channels + Dual Enable SOI C8, MLP8
FAN3228C Dual 2 A +2.4 A / -1.6 A CMOS Dual Channels of T wo-Input/One-Output, Pin Config.1 SOIC8, MLP8
FAN3228T Dual 2 A +2.4 A / -1.6 A TTL Dual Channels of Two-Input/One-Output, Pi n Config.1 SOIC8, MLP8
FAN3229C Dual 2 A +2.4 A / -1.6 A CMOS Dual Channels of T wo-Input/One-Output, Pin Config.2 SOIC8, MLP8
FAN3229T Dual 2 A +2.4 A / -1.6 A TTL Dual Channels of Two-Input/One-Output, Pi n Config.2 SOIC8, MLP8
FAN3268T Dual 2 A +2.4 A / -1.6 A TTL Non-Inverting Channel (NMOS) and Inverting Channel
(PMO S ) + Du al Enables SOIC8
FAN3223C Dual 4 A +4.3 A / -2.8 A CMOS Dual Invert i ng Channels + Dual Enable SOIC8, MLP8
FAN3223T Dual 4 A +4.3 A / -2.8 A TTL Dual Invert i ng Channels + Dual Enable SOIC8, MLP8
FAN3224C Dual 4 A +4.3 A / -2.8 A CMOS Dual Non-Inverti ng Channel s + Dual Enable S O I C8, MLP 8
FAN3224T Dual 4 A +4.3 A / -2.8 A TTL Dual Non-Inverti ng Channel s + Dual Enable S O I C8, MLP8
FAN3225C Dual 4 A +4.3 A / -2.8 A CMOS Dual Channels of T wo-Input/One-Output S O I C8, MLP 8
FAN3225T Dual 4 A +4.3 A / -2.8 A TTL Dual Channels of Two-Input/One-Output SOIC8, MLP8
FAN3121C Singl e 9 A +9.7 A / -7.1 A CMOS Single Inverting Channel + E nabl e SOIC8, MLP8
FAN3121T Singl e 9 A +9.7 A / -7.1 A TTL Single I nvert i ng Channel + Enable SOI C8, MLP8
FAN3122T Si ngl e 9 A +9.7 A / -7.1 A CMOS Singl e Non-Invert i ng Channel + Enable SOI C8, MLP8
FAN3122C Singl e 9 A +9.7 A / -7.1 A TTL Single Non-Invert i ng Channel + Enable SOI C8, MLP8
Notes:
14. Typical currents with OUT at 6 V and VDD=12 V.
15. Thresholds proportional to an externally supplied reference voltage.
© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com
FAN3268 Rev. 1.0.3 16
FAN3268 —2 A Low-Voltage PMOS-NMOS Br idge Driver
Physical Dimensions
SEE DETAIL A
NOTES: UNLESS OTHERWISE SPECIFIED
A) THIS PACKAGE CONFORMS TO JEDEC
MS-012, VARIATION AA.
B) ALL DIMENSIONS ARE IN MILLIMETERS.
C) DIMENSIONS DO NOT INCLUDE MOLD
FLASH OR BURRS.
D) LANDPATTERN STANDARD: SOIC127P600X175-8M.
E) DRAWING FILENAME: M08Arev15
F) FAIRCHILD SEMICONDUCTOR.
LAND PATTERN RECOMMENDATION
SEATING PLANE
C
GAGE PLANE
x 45°
DETAIL A
SCALE: 2:1
PIN ONE
INDICATOR 4
8
1
B
5
A
5.60
0.65
1.75
1.27
6.00±0.20 3.90±0.10
4.90±0.10
1.27
0.42±0.09
0.175±0.75
1.75 MAX
0.36
(0.86)
R0.10
R0.10
0.65±0.25 (1.04)
OPTION A - BEVEL EDGE
OPTION B - NO BEVEL EDGE
0.25 C B A
0.10
0.22±0.30
(0.635)
Figure 30. 8-Lead Small Outline Integrated Circuit (SOIC)
Package draw ings are provided as a serv ic e to c ustomers consi dering Fairchild components. Drawings may c hange in any manner
without notice. P lease note the revis ion and/or date on the drawing and c ontact a Fairchild Semiconduct or representativ e to v erify
or obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions,
specificall y the warranty therei n, which covers F ai rc hi l d products.
Always vi sit Fai rchild Semic onductor’s online packaging area for the mos t recent package drawings:
http://www.fairchildsemi.com/packaging/
.
© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com
FAN3268 Rev. 1.0.3 17
FAN3268 —2 A Low-Voltage PMOS-NMOS Br idge Driver
Mouser Electronics
Authorized Distributor
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