FAN3217TMX - Fairchild Semiconductor

FAN3216 / FAN3217
Dual 2-A, High-Speed, Low-Side Gate Drivers
Features

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
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
Industry-Standard Pinouts



Internal Resistors Turn Driver Off If No Inputs

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
TTL Input Thresholds
4.5-V to 18-V Operating Range
3-A Peak Sink/Source at VDD = 12 V
2.4-A Sink / 1.6-A Source at VOUT = 6 V
Inverting Configuration (FAN3216) and
Non-Inverting Configuration (FAN3217)
12-ns / 9-ns Typical Rise/Fall Times (1 nF Load)
20-ns Typical Propagation Delay Time Matched
within 1 ns to the Other Channel
MillerDrive™ Technology
Double Current Capability by Paralleling Channels
Standard SOIC-8 Package
Rated from –40°C to +125°C Ambient
Automotive Qualified to AEC-Q100 (F085 Versions)
Applications
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Switch-Mode Power Supplies
Description
The FAN3216 and FAN3217 dual 2 A gate drivers are
designed to drive N-channel enhancement-mode
MOSFETs in low-side switching applications by
providing high peak current pulses during the short
switching intervals. They are both available with TTL
input thresholds. Internal circuitry provides an undervoltage lockout function by holding the output LOW until
the supply voltage is within the operating range. In
addition, the drivers feature matched internal
propagation delays between A and B channels for
applications requiring dual gate drives with critical
timing, such as synchronous rectifiers. This also
enables connecting two drivers in parallel to effectively
double the current capability driving a single MOSFET.
The FAN3216/17 drivers incorporate MillerDrive™
architecture for the final output stage. This bipolarMOSFET combination provides high current during the
Miller plateau stage of the MOSFET turn-on / turn-off
process to minimize switching loss, while providing railto-rail voltage swing and reverse current capability.
The FAN3216 offers two inverting drivers and the
FAN3217 offers two non-inverting drivers. Both are
offered in a standard 8-pin SOIC package.
High-Efficiency MOSFET Switching
Synchronous Rectifier Circuits
DC-to-DC Converters
Motor Control
Automotive-Qualified Systems (F085 Versions)
Figure 1.
FAN3216 Pin Configuration
© 2013 Fairchild Semiconductor Corporation
FAN3216 / FAN3217 • Rev. 1.0.3
Figure 2.
FAN3217 Pin Configuration
www.fairchildsemi.com
FAN3216 / FAN3217 — Dual 2-A, High-Speed, Low-Side Gate Drivers
April 2013
Input
Threshold
Package
Packing
Method
Quantity
per Reel
Dual Inverting Channels
TTL
SOIC-8
Tape & Reel
2,500
Dual Inverting Channels
TTL
SOIC-8
Tape & Reel
2,500
Dual Non-Inverting Channels
TTL
SOIC-8
Tape & Reel
2,500
SOIC-8
Tape & Reel
2,500
Part Number
Logic
FAN3216TMX
FAN3216TMX_F085
(1)
FAN3217TMX
FAN3217TMX_F085(1)
Dual Non-Inverting Channels
TTL
All standard Fairchild Semiconductor products are RoHS compliant and many are also “Green” or going green. Green means
the products are RoHS compliant AND they have limits on additional substances of Chlorine, Bromine and Antimony. For additional
information on Fairchild’s “green” Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html.
Note:
1. Qualified to AEC-Q100
Package Outlines
Figure 3. SOIC-8 (Top View)
Thermal Characteristics(2)
Package
8-Pin Small Outline Integrated Circuit (SOIC)
ΘJL(3)
ΘJT(4)
ΘJA(5)
ΨJB(6)
ΨJT(7)
Unit
40
31
89
43
3.0
°C/W
Notes:
2. Estimates derived from thermal simulation; actual values depend on the application.
3. Theta_JL (ΘJL): Thermal resistance between the semiconductor junction and the bottom surface of all the leads
(including any thermal pad) that are typically soldered to a PCB.
4. Theta_JT (ΘJT): Thermal resistance between the semiconductor junction and the top surface of the package,
assuming it is held at a uniform temperature by a top-side heatsink.
5. Theta_JA (ΘJA): Thermal resistance between junction and ambient, dependent on the PCB design, heat sinking,
and airflow. The value given is for natural convection with no heatsink using a 2S2P board, as specified in
JEDEC standards JESD51-2, JESD51-5, and JESD51-7, as appropriate.
6. Psi_JB (ΨjB): Thermal characterization parameter providing correlation between semiconductor junction
temperature and an application circuit board reference point for the thermal environment defined in Note 5. For
the SOIC-8 package, the board reference is defined as the pcb copper adjacent to pin 6.
7. Psi_JT (ΨjT): Thermal characterization parameter providing correlation between the semiconductor junction
temperature and the center of the top of the package for the thermal environment defined in Note 5.
© 2009 Fairchild Semiconductor Corporation
FAN3216 / FAN3217 • Rev. 1.0.3
www.fairchildsemi.com
2
FAN3216 / FAN3217 — Dual 2-A, High-Speed, Low-Side Gate Drivers
Ordering Information
Figure 4. FAN3216
Figure 5. FAN3217
Pin Definitions
Pin
Name
Pin Description
1
NC
No Connect. This pin can be grounded or left floating.
2
INA
Input to Channel A.
3
GND
Ground. Common ground reference for input and output circuits.
4
INB
Input to Channel B.
5
(FAN3216)
OUTB
Gate Drive Output B (inverted from the input): Held LOW unless required input is
present and VDD is above UVLO threshold.
5
(FAN3217)
OUTB
Gate Drive Output B: Held LOW unless required input(s) are present and VDD is above
UVLO threshold.
6
VDD
7
(FAN3216)
OUTA
Gate Drive Output A (inverted from the input): Held LOW unless required input is
present and VDD is above UVLO threshold.
7
(FAN3217)
OUTA
Gate Drive Output A: Held LOW unless required input(s) are present and VDD is above
UVLO threshold.
8
NC
Supply Voltage. Provides power to the IC.
No Connect. This pin can be grounded or left floating.
Output Logic
FAN3216 (x=A or B)
INx
0
1(8)
FAN3217 (x=A or B)
INx
OUTx
1
0
(8)
0
1
OUTx
0
1
Note:
8. Default input signal if no external connection is made.
© 2009 Fairchild Semiconductor Corporation
FAN3216 / FAN3217 • Rev. 1.0.3
www.fairchildsemi.com
3
FAN3216 / FAN3217 — Dual 2-A, High-Speed, Low-Side Gate Drivers
Pin Configurations
FAN3216 / FAN3217 — Dual 2-A, High-Speed, Low-Side Gate Drivers
Block Diagrams
Figure 6. FAN3216 Block Diagram
Figure 7. FAN3217 Block Diagram
© 2009 Fairchild Semiconductor Corporation
FAN3216 / FAN3217 • Rev. 1.0.3
www.fairchildsemi.com
4
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
-0.3
20.0
V
VDD
VDD to PGND
VIN
INA and INB to GND
GND - 0.3 VDD + 0.3
V
OUTA and OUTB to GND
GND - 0.3 VDD + 0.3
V
VOUT
TL
Lead Soldering Temperature (10 Seconds)
TJ
Junction Temperature
TSTG
Storage Temperature
+260
ºC
-55
+150
ºC
-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
VDD
Supply Voltage Range
VIN
Input Voltage INA and INB
TA
Operating Ambient Temperature
© 2009 Fairchild Semiconductor Corporation
FAN3216 / FAN3217 • Rev. 1.0.3
Min.
Max.
Unit
4.5
18.0
V
0
VDD
V
-40
+125
ºC
www.fairchildsemi.com
5
FAN3216 / FAN3217 — Dual 2-A, High-Speed, Low-Side Gate Drivers
Absolute Maximum Ratings
Unless otherwise noted, VDD=12 V, 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
18.0
V
0.75
1.20
mA
Supply
VDD
Operating Range
4.5
IDD
Supply Current, Inputs Not Connected
VON
Turn-On Voltage
INA=VDD, INB=0 V
3.45
3.90
4.35
V
VOFF
Turn-Off Voltage
INA=VDD, INB=0 V
3.25
3.70
4.15
V
FAN3216TMX_F085, FAN3217TMX_F085 (Automotive-Qualified Versions)
VON
Turn-On Voltage(11)
INA=VDD, INB=0 V
3.40
3.90
4.60
V
VOFF
(11)
INA=VDD, INB=0 V
3.20
3.70
4.30
V
0.8
1.2
Turn-Off Voltage
Inputs
VIL_T
INx Logic Low Threshold
VIH_T
INx Logic High Threshold
VHYS_T
TTL Logic Hysteresis Voltage
0.2
V
1.6
2.0
V
0.4
0.8
V
FAN3216TMX, FAN3217TMX
IIN+
Non-inverting Input Current
IN from 0 to VDD
-1.0
175
µA
IIN-
Inverting Input Current
IN from 0 to VDD
-175.0
1.0
µA
1.5
µA
µA
FAN3216TMX_F085, FAN3217TMX_F085 (Automotive-Qualified Versions)
IINx_T
Non-inverting Input Current(11)
IN=0 V
-1.5
IINx_T
(11)
Non-inverting Input Current
IN=VDD
90
120
175.0
IINx_T
Inverting Input Current
(11)
IN=0 V
-175.0
-120
-90
µA
IINx_T
Inverting Input Current(11)
IN=VDD
-1.5
1.5
µA
Outputs
OUT Current, Mid-Voltage, Sinking(9)
OUTx at VDD/2,
CLOAD=0.22 µF, f=1 kHz
2.4
A
ISOURCE
OUT Current, Mid-Voltage, Sourcing(9)
OUTx at VDD/2,
CLOAD=0.1 µF, f=1 kHz
-1.6
A
IPK_SINK
OUT Current, Peak, Sinking(9)
CLOAD=0.1 µF, f=1 kHz
3
A
CLOAD=0.1 µF, f=1 kHz
-3
A
CLOAD=1000 pF
12
22
ns
CLOAD=1000 pF
9
17
ns
19
34
ns
1
2
ns
ISINK
IPK_SOURCE
tRISE
tFALL
tD1, tD2
IRVS
(9)
OUT Current, Peak, Sourcing
(10)
Output Rise Time
(10)
Output Fall Time
(10)
Output Propagation Delay, TTL Inputs
0 – 5 VIN, 1V/ns Slew Rate
Propagation Matching Between Channels
INA=INB, OUTA and OUTB
at 50% Point
Output Reverse Current Withstand(9)
10
500
mA
Continued on the following page…
© 2009 Fairchild Semiconductor Corporation
FAN3216 / FAN3217 • Rev. 1.0.3
www.fairchildsemi.com
6
FAN3216 / FAN3217 — Dual 2-A, High-Speed, Low-Side Gate Drivers
Electrical Characteristics
Unless otherwise noted, VDD=12 V, 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
4.5
19.0
34.0
ns
Outputs (continued)
FAN3216TMX_F085, FAN3217TMX_F085 (Automotive-Qualified Versions)
Output Propagation Delay, TTL Inputs(11)
0 – 5 VIN, 1 V/ns Slew Rate
Propagation Matching Between
Channels(11)
INA=INB, OUTA and OUTB
at 50% Point
2
4
ns
VOH
High Level Output Voltage(11)
VOH =VDD –VOUT, IOUT=-1 mA
15
35
mV
VOL
Low Level Output Voltage(11)
IOUT=1 mA
10
25
mV
tD1, tD2
Notes:
9. Not tested in production.
10. See Timing Diagrams of Figure 8 and Figure 9.
11. Apply to only F085 Version
Figure 8. Non-Inverting Timing Diagram
© 2009 Fairchild Semiconductor Corporation
FAN3216 / FAN3217 • Rev. 1.0.3
Figure 9. Inverting Timing Diagram
www.fairchildsemi.com
7
FAN3216 / FAN3217 — Dual 2-A, High-Speed, Low-Side Gate Drivers
Electrical Characteristics (Continued)
Typical characteristics are provided at TA=25°C and VDD=12 V unless otherwise noted.
Figure 10. IDD (Static) vs. Supply Voltage(12)
Figure 11. IDD (Static) vs. Temperature(12)
Figure 12. IDD (No-Load) vs. Frequency
Figure 13. IDD (1 nF Load) vs. Frequency
Figure 14. Input Thresholds vs. Supply Voltage
Figure 15. Input Thresholds vs. Temperature
© 2009 Fairchild Semiconductor Corporation
FAN3216 / FAN3217 • Rev. 1.0.3
www.fairchildsemi.com
8
FAN3216 / FAN3217 — Dual 2-A, High-Speed, Low-Side Gate Drivers
Typical Performance Characteristics
FAN3216 / FAN3217 — Dual 2-A, High-Speed, Low-Side Gate Drivers
Typical Performance Characteristics
Typical characteristics are provided at TA=25°C and VDD=12 V unless otherwise noted.
Figure 16. UVLO Threshold vs. Temperature
Figure 17. Propagation Delay vs. Supply Voltage
Figure 18. Propagation Delay vs. Supply Voltage
Figure 19. Propagation Delays vs. Temperature
Figure 20. Propagation Delays vs. Temperature
© 2009 Fairchild Semiconductor Corporation
FAN3216 / FAN3217 • Rev. 1.0.3
www.fairchildsemi.com
9
Typical characteristics are provided at TA=25°C and VDD=12 V unless otherwise noted.
Figure 21. Fall Time vs. Supply Voltage
Figure 22. Rise Time vs. Supply Voltage
Figure 23. Rise and Fall Times vs. Temperature
Figure 24. Rise/Fall Waveforms with 2.2 nF Load
© 2009 Fairchild Semiconductor Corporation
FAN3216 / FAN3217 • Rev. 1.0.3
Figure 25. Rise/Fall Waveforms with 10 nF Load
www.fairchildsemi.com
10
FAN3216 / FAN3217 — Dual 2-A, High-Speed, Low-Side Gate Drivers
Typical Performance Characteristics
Typical characteristics are provided at TA=25°C and VDD=12 V unless otherwise noted.
Figure 26. Quasi-Static Source Current
with VDD=12 V(13)
Figure 27. Quasi-Static Sink Current with VDD=12 V(13)
Figure 28. Quasi-Static Source Current
with VDD=8 V(13)
Figure 29. Quasi-Static Sink Current with VDD=8 V(13)
Notes:
12. 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 Figure 6 and Figure 7.
13. The initial spike in each current waveform is a measurement artifact caused by the stray inductance of the
current-measurement loop.
Test Circuit
Figure 30. Quasi-Static IOUT / VOUT Test Circuit
© 2009 Fairchild Semiconductor Corporation
FAN3216 / FAN3217 • Rev. 1.0.3
www.fairchildsemi.com
11
FAN3216 / FAN3217 — Dual 2-A, High-Speed, Low-Side Gate Drivers
Typical Performance Characteristics
Input Thresholds
The FAN3216 and the FAN3217 drivers consist of two
identical channels that may be used independently at
rated current or connected in parallel to double the
individual current capacity.
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. With reduced slew rate,
circuit noise could cause the driver input voltage to
exceed the hysteresis voltage and retrigger the driver
input, causing erratic operation.
Figure 31. MillerDrive™ Output Architecture
Under-Voltage Lockout
The FAN321x startup logic is optimized to drive groundreferenced N-channel MOSFETs with an under-voltage
lockout (UVLO) function to ensure that the IC starts up
in an orderly fashion. When VDD is rising, yet below the
3.9 V operational level, this circuit holds the output
LOW, regardless of the status of the input pins. 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. This configuration is not suitable
for driving high-side P-channel MOSFETs because the
low output voltage of the driver would turn the P-channel
MOSFET on with VDD below 3.9 V.
Static Supply Current
In the IDD (static) typical performance characteristics
shown in Figure 10 and Figure 11, each curve is
produced with both inputs floating and both outputs
LOW to indicate the lowest static IDD current. For other
states, additional current flows through the 100kΩ
resistors on the inputs and outputs shown in the block
diagram of each part (see Figure 6 and Figure 7). In
these cases, the actual static IDD current is the value
obtained from the curves plus this additional current.
MillerDrive™ Gate Drive Technology
FAN3216 and FAN3217 gate drivers incorporate the
MillerDrive™ architecture shown in Figure 31. 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 swings between 1/3
to 2/3 VDD and the MOS devices pull the output to the
HIGH or LOW rail.
VDD Bypass Capacitor Guidelines
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.
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.
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 higherfrequency 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.
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.
© 2009 Fairchild Semiconductor Corporation
FAN3216 / FAN3217 • Rev. 1.0.3
www.fairchildsemi.com
12
FAN3216 / FAN3217 — Dual 2-A, High-Speed, Low-Side Gate Drivers
Applications Information
The FAN3216 and FAN3217 gate drivers incorporate
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 10 ns to over 150 ns. The following layout and
connection guidelines are strongly recommended:

Keep high-current output and power ground paths
separate from logic input signals and signal ground
paths. This is especially critical for TTL-level logic
thresholds at driver input 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 highspeed 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 kΩ resistors indicated
on block diagrams command a low output. In noisy
environments, it may be necessary to tie inputs of
an unused channel to VDD or GND using short
traces to prevent noise from causing spurious
output switching.

Many high-speed power circuits can be susceptible
to noise injected from their own output or other
external sources, possibly causing output retriggering. These effects can be obvious if the
circuit is tested in breadboard or non-optimal circuit
layouts with long input or output leads. For best
results, make connections to all pins as short and
direct as possible.

FAN3216 and FAN3217 are pin-compatible with
many other industry-standard drivers.

The turn-on and turn-off current paths should be
minimized, as discussed in the following section.
Figure 32. Current Path for MOSFET Turn-On
Figure 33 shows the current path when the gate driver
turns the MOSFET OFF. Ideally, the driver shunts the
current directly to the source of the MOSFET in a small
circuit loop. For fast turn-off times, the resistance and
inductance in this path should be minimized.
Figure 33. Current Path for MOSFET Turn-Off
Figure 32 shows the pulsed gate drive current path
when the gate driver is supplying gate charge to turn the
MOSFET on. The current is supplied from the local
bypass capacitor, CBYP, and flows through the driver to
the MOSFET gate and to ground. To reach the high
peak currents possible, the resistance and inductance in
the path should be minimized. The localized CBYP acts
to contain the high peak current pulses within this driverMOSFET circuit, preventing them from disturbing the
sensitive analog circuitry in the PWM controller.
© 2009 Fairchild Semiconductor Corporation
FAN3216 / FAN3217 • Rev. 1.0.3
www.fairchildsemi.com
13
FAN3216 / FAN3217 — Dual 2-A, High-Speed, Low-Side Gate Drivers
Layout and Connection Guidelines
At power-up, the driver output remains LOW until the
VDD voltage reaches the turn-on threshold. The
magnitude of the OUT pulses rises with VDD until
steady-state VDD is reached. The non-inverting
operation illustrated in Figure 34 shows that the output
remains LOW until the UVLO threshold is reached, then
the output is in-phase with the input.
The inverting configuration of startup waveforms are
shown in Figure 35. With IN+ tied to VDD and the input
signal applied to IN–, the OUT pulses are inverted with
respect to the input. At power-up, the inverted output
remains LOW until the VDD voltage reaches the turn-on
threshold, then it follows the input with inverted phase.
Figure 34. Non-Inverting Startup Waveforms
Figure 35. Inverting Startup Waveforms
© 2009 Fairchild Semiconductor Corporation
FAN3216 / FAN3217 • Rev. 1.0.3
www.fairchildsemi.com
14
FAN3216 / FAN3217 — Dual 2-A, High-Speed, Low-Side Gate Drivers
Operational Waveforms
In the forward converter with synchronous rectifier
shown in the typical application diagrams, the
FDMS8660S is a reasonable MOSFET selection. The
gate charge for each SR MOSFET would be 60 nC with
VGS = VDD = 7V. At a switching frequency of 500 kHz,
the total power dissipation is:
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 gatesource voltage, VGS, with gate charge, QG, at
switching frequency, fSW, is determined by:
PGATE = QG • VGS • fSW • n
(5)
PDYNAMIC = 3 mA • 7 V • 2 = 0.042 W
(6)
PTOTAL = 0.46 W
(7)
The SOIC-8 has a junction-to-board thermal
characterization parameter of ψJB = 43°C/W. In a
system 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:
(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 graphs
in Typical Performance Characteristics to determine
the current IDYNAMIC drawn from VDD under actual
operating conditions:
PDYNAMIC = IDYNAMIC • VDD • n
PGATE = 60 nC • 7 V • 500 kHz • 2 = 0.42 W
TB = TJ - PTOTAL • ψJB
(8)
TB = 120°C – 0.46 W • 43°C/W = 100°C
(9)
(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 power
dissipation; and
= board temperature in location as defined in
TB
the Thermal Characteristics table.
© 2009 Fairchild Semiconductor Corporation
FAN3216 / FAN3217 • Rev. 1.0.3
www.fairchildsemi.com
15
FAN3216 / FAN3217 — Dual 2-A, High-Speed, Low-Side Gate Drivers
Thermal Guidelines
Figure 36. Forward Converter
with Synchronous Rectification
Figure 37.
Primary-Side Dual Driver
in a Push-Pull Converter
Figure 38. Phase-Shifted Full-Bridge with Two Gate Drive Transformers (Simplified)
© 2009 Fairchild Semiconductor Corporation
FAN3216 / FAN3217 • Rev. 1.0.3
www.fairchildsemi.com
16
FAN3216 / FAN3217 — Dual 2-A, High-Speed, Low-Side Gate Drivers
Typical Application Diagrams
Type
Part
Number
Single 1 A
FAN3111C
Gate Drive(14)
Input
(Sink/Src) Threshold
+1.1 A / -0.9 A
CMOS
(15)
Logic
Package
Single Channel of Dual-Input/Single-Output
SOT23-5, MLP6
Single Non-Inverting Channel with External Reference
SOT23-5, MLP6
Single 1 A
FAN3111E
+1.1 A / -0.9 A
External
Single 2 A
FAN3100C
+2.5 A / -1.8 A
CMOS
Single Channel of Two-Input/One-Output
SOT23-5, MLP6
Single 2 A
FAN3100T
+2.5 A / -1.8 A
TTL
Single Channel of Two-Input/One-Output
SOT23-5, MLP6
Single 2 A
FAN3180
+2.4 A / -1.6 A
TTL
Single Non-Inverting Channel + 3.3-V LDO
Dual 2 A
FAN3216T
+2.4 A / -1.6 A
TTL
Dual Inverting Channels
Dual 2 A
FAN3217T
+2.4 A / -1.6 A
TTL
Dual 2 A
FAN3226C
+2.4 A / -1.6 A
CMOS
Dual Inverting Channels + Dual Enable
SOIC8, MLP8
Dual 2 A
FAN3226T
+2.4 A / -1.6 A
TTL
Dual Inverting Channels + Dual Enable
SOIC8, MLP8
Dual 2 A
FAN3227C
+2.4 A / -1.6 A
CMOS
Dual Non-Inverting Channels + Dual Enable
SOIC8, MLP8
Dual 2 A
FAN3227T
+2.4 A / -1.6 A
TTL
Dual Non-Inverting Channels + Dual Enable
SOIC8, MLP8
Dual 2 A
FAN3228C
+2.4 A / -1.6 A
CMOS
Dual Channels of Two-Input/One-Output, Pin Config.1
SOIC8, MLP8
Dual 2 A
FAN3228T
+2.4 A / -1.6 A
TTL
Dual Channels of Two-Input/One-Output, Pin Config.1
SOIC8, MLP8
Dual 2 A
FAN3229C
+2.4 A / -1.6 A
CMOS
Dual Channels of Two-Input/One-Output, Pin Config.2
SOIC8, MLP8
Dual 2 A
FAN3229T
+2.4 A / -1.6 A
TTL
Dual Channels of Two-Input/One-Output, Pin Config.2
SOIC8, MLP8
Dual 2 A
FAN3268T
+2.4 A / -1.6 A
TTL
20 V Non-Inverting Channel (NMOS) and Inverting
Channel (PMOS) + Dual Enables
SOIC8
Dual 2 A
FAN3278T
+2.4 A / -1.6 A
TTL
30 V Non-Inverting Channel (NMOS) and Inverting
Channel (PMOS) + Dual Enables
SOIC8
Dual 4 A
FAN3213T
+2.5 A / -1.8 A
TTL
Dual Inverting Channels
SOIC8
Dual 4 A
FAN3214T
+2.5 A / -1.8 A
TTL
Dual Non-Inverting Channels
SOIC8
Dual 4 A
FAN3223C
+4.3 A / -2.8 A
CMOS
Dual Inverting Channels + Dual Enable
SOIC8, MLP8
Dual 4 A
FAN3223T
+4.3 A / -2.8 A
TTL
Dual Inverting Channels + Dual Enable
SOIC8, MLP8
Dual 4 A
FAN3224C
+4.3 A / -2.8 A
CMOS
Dual Non-Inverting Channels + Dual Enable
SOIC8, MLP8
Dual 4 A
FAN3224T
+4.3 A / -2.8 A
TTL
Dual Non-Inverting Channels + Dual Enable
SOIC8, MLP8
Dual 4 A
FAN3225C
+4.3 A / -2.8 A
CMOS
Dual Channels of Two-Input/One-Output
SOIC8, MLP8
Dual 4 A
FAN3225T
+4.3 A / -2.8 A
TTL
Dual Channels of Two-Input/One-Output
SOIC8, MLP8
Single 9 A
FAN3121C
+9.7 A / -7.1 A
CMOS
Single Inverting Channel + Enable
SOIC8, MLP8
Single 9 A
FAN3121T
+9.7 A / -7.1 A
TTL
Single Inverting Channel + Enable
SOIC8, MLP8
Single 9 A
FAN3122T
+9.7 A / -7.1 A
CMOS
Single Non-Inverting Channel + Enable
SOIC8, MLP8
Single 9 A
FAN3122C
+9.7 A / -7.1 A
TTL
Single Non-Inverting Channel + Enable
SOIC8, MLP8
Dual 12 A
FAN3240
+12.0 A
TTL
Dual-Coil Relay Driver, Timing Config. 0
SOIC8
Dual 12 A
FAN3241
+12.0 A
TTL
Dual-Coil Relay Driver, Timing Config. 1
SOIC8
Dual Non-Inverting Channels
SOT23-5
SOIC8
SOIC8
Notes:
14. Typical currents with OUTx at 6 V and VDD=12 V.
15. Thresholds proportional to an externally supplied reference voltage.
© 2009 Fairchild Semiconductor Corporation
FAN3216 / FAN3217 • Rev. 1.0.3
www.fairchildsemi.com
17
FAN3216 / FAN3217 — Dual 2-A, High-Speed, Low-Side Gate Drivers
Table 1. Related Products
5.00
4.80
A
0.65
3.81
5
8
B
6.20
5.80
PIN ONE
INDICATOR
1.75
4.00
3.80
1
5.60
4
1.27
(0.33)
0.25
M
1.27
C B A
LAND PATTERN RECOMMENDATION
0.25
0.10
SEE DETAIL A
1.75 MAX
0.25
0.19
C
0.10
0.51
0.33
0.50 x 45°
0.25
R0.10
C
OPTION A - BEVEL EDGE
GAGE PLANE
R0.10
OPTION B - NO BEVEL EDGE
0.36
NOTES: UNLESS OTHERWISE SPECIFIED
8°
0°
0.90
0.406
A) THIS PACKAGE CONFORMS TO JEDEC
MS-012, VARIATION AA, ISSUE C,
B) ALL DIMENSIONS ARE IN MILLIMETERS.
C) DIMENSIONS DO NOT INCLUDE MOLD
FLASH OR BURRS.
D) LANDPATTERN STANDARD: SOIC127P600X175-8M.
E) DRAWING FILENAME: M08AREV13
SEATING PLANE
(1.04)
DETAIL A
SCALE: 2:1
Figure 39.
8-Lead Small Outline Integrated Circuit (SOIC)
Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner
without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or
obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions,
specifically the warranty therein, which covers Fairchild products.
Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings:
http://www.fairchildsemi.com/packaging/.
© 2009 Fairchild Semiconductor Corporation
FAN3216 / FAN3217 • Rev. 1.0.3
www.fairchildsemi.com
18
FAN3216 / FAN3217 — Dual 2-A, High-Speed, Low-Side Gate Drivers
Physical Dimensions
FAN3216 / FAN3217 — Dual 2-A, High-Speed, Low-Side Gate Drivers
© 2009 Fairchild Semiconductor Corporation
FAN3216 / FAN3217 • Rev. 1.0.3
www.fairchildsemi.com
19