FAN3229C Fairchild Semiconductor, FAN3229C Datasheet

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FAN3229C

Manufacturer Part Number
FAN3229C
Description
The FAN3226-29 family of dual 2A gate drivers is designed to drive N-channel enhancement-mode MOSFETs in low-side switching applications by providing high peak current pulses during the short switching intervals
Manufacturer
Fairchild Semiconductor
Datasheet

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© 2007 Fairchild Semiconductor Corporation
FAN3226 / FAN3227 / FAN3228 / FAN3229 • Rev. 1.0.8
FAN3226 / FAN3227 / FAN3228 / FAN3229
Dual 2A High-Speed, Low-Side Gate Drivers
Features
Applications
Industry-Standard Pinouts
4.5 to 18V Operating Range
3A Peak Sink/Source at V
2.4A Sink / 1.6A Source at V
Choice of TTL or CMOS Input Thresholds
Four Versions of Dual Independent Drivers:
-
-
-
Internal Resistors Turn Driver Off If No Inputs
MillerDrive™ Technology
12ns / 9ns Typical Rise/Fall Times with 1nF Load
Typical Propagation Delay Under 20ns Matched
within 1ns to the Other Channel
Double Current Capability by Paralleling Channels
8-Lead 3x3mm MLP or 8-Lead SOIC Package
Rated from –40°C to +125°C Ambient
Switch-Mode Power Supplies
High-Efficiency MOSFET Switching
Synchronous Rectifier Circuits
DC-to-DC Converters
Motor Control
Servers
Dual Inverting + Enable (FAN3226)
Dual Non-Inverting + Enable (FAN3227)
Dual Inputs in Two Pin-Out Configurations:
o
o
FAN3226
Compatible with FAN3225x (FAN3228)
Compatible with TPS2814D (FAN3229)
DD
= 12V
OUT
= 6V
FAN3227
Figure 1. Pin Configurations
Description
The FAN3226-29 family of dual 2A gate drivers is
designed
MOSFETs
providing high peak current pulses during the short
switching intervals. The driver is available with either
TTL or CMOS input thresholds. Internal circuitry
provides an under-voltage 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 enables
connecting two drivers in parallel to effectively double
the current capability driving a single MOSFET.
The
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 FAN3226 offers two inverting drivers and the
FAN3227 offers two non-inverting drivers. Each device
has dual independent enable pins that default to ON if
not connected. In the FAN3228 and FAN3229, each
channel has dual inputs of opposite polarity, which
allows configuration as non-inverting or inverting with an
optional enable function using the second input. If one
or both inputs are left unconnected, internal resistors
bias the inputs such that the output is pulled low to hold
the power MOSFET off.
Related Resources
AN-6069: Application Review and Comparative
Evaluation of Low-Side Gate Drivers
FAN322X
FAN3228
to
in
drive
low-side
drivers
N-channel
switching
incorporate
enhancement-mode
FAN3229
applications
July 2011
www.fairchildsemi.com
MillerDrive™
by

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FAN3229C Summary of contents

Page 1

... Synchronous Rectifier Circuits  DC-to-DC Converters  Motor Control  Servers FAN3226 © 2007 Fairchild Semiconductor Corporation FAN3226 / FAN3227 / FAN3228 / FAN3229 • Rev. 1.0.8 Description The FAN3226-29 family of dual 2A gate drivers is designed MOSFETs providing high peak current pulses during the short = 12V switching intervals. The driver is available with either ...

Page 2

... FAN3227TMX FAN3228CMPX Dual Channels of Two-Input / FAN3228CMX One-Output Drivers, Pin FAN3228TMPX Configuration 1 FAN3228TMX FAN3229CMPX Dual Channels of Two-Input / FAN3229CMX One-Output Drivers, Pin FAN3229TMPX Configuration 2 FAN3229TMX Package Outlines Figure 2. 3x3mm MLP-8 (Top View) Thermal Characteristics Package 8-Lead 3x3mm Molded Leadless Package (MLP) 8-Pin Small Outline Integrated Circuit (SOIC) Notes: 1 ...

Page 3

... INx (7) ( Note: 7. Default input signal if no external connection is made. © 2007 Fairchild Semiconductor Corporation FAN3226 / FAN3227 / FAN3228 / FAN3229 • Rev. 1.0.8 FAN3227 Figure 4. Pin Configurations (Repeated) Pin Description FAN3227 (x ENx INx OUTx ( ...

Page 4

... Block Diagrams V DD 100k ENA 100k INA 2 GND 100k INB 4 © 2007 Fairchild Semiconductor Corporation FAN3226 / FAN3227 / FAN3228 / FAN3229 • Rev. 1.0 100k UVLO V DD_OK Figure 5. FAN3226 Block Diagram Figure 6. FAN3227 Block Diagram 4 ENB 8 OUTA 7 100k VDD 6 OUTB 5 100k ...

Page 5

... Block Diagrams © 2007 Fairchild Semiconductor Corporation FAN3226 / FAN3227 / FAN3228 / FAN3229 • Rev. 1.0.8 Figure 7. FAN3228 Block Diagram Figure 8. FAN3229 Block Diagram 5 www.fairchildsemi.com ...

Page 6

... Enable Voltage ENA and ENB EN V Input Voltage INA, INA+, INA–, INB, INB+ and INB– Operating Ambient Temperature A © 2007 Fairchild Semiconductor Corporation FAN3226 / FAN3227 / FAN3228 / FAN3229 • Rev. 1.0.8 Parameter Human Body Model, JEDEC JESD22-A114 Charged Device Model, JEDEC JESD22-C101 Parameter 6 Min. ...

Page 7

... TTL Logic Hysteresis Voltage HYS_T R Enable Pull-up Resistance Output Propagation Delay t D4 © 2007 Fairchild Semiconductor Corporation FAN3226 / FAN3227 / FAN3228 / FAN3229 • Rev. 1.0.8 =-40°C to +125°C. Currents are defined as positive into the device and negative J Conditions TTL (8) CMOS INA=ENA=V , INB=ENB=0V ...

Page 8

... EN inputs have TTL thresholds; refer to the ENABLE section. 10. Not tested in production. 11. See Timing Diagrams of Figure 11 and Figure 12. 12. See Timing Diagrams of Figure 9 and Figure 10. © 2007 Fairchild Semiconductor Corporation FAN3226 / FAN3227 / FAN3228 / FAN3229 • Rev. 1.0.8 (Continued) =-40°C to +125°C. Currents are defined as positive into the device and negative ...

Page 9

... Timing Diagrams 90% Output 10% V INH Input V INL t D1 Figure 9. Non-Inverting (EN HIGH or Floating) Figure 11. Non-Inverting (IN HIGH) © 2007 Fairchild Semiconductor Corporation FAN3226 / FAN3227 / FAN3228 / FAN3229 • Rev. 1.0.8 90% Output 10% V Input RISE FALL Figure 10. Inverting (EN HIGH or Floating) 9 INH INL ...

Page 10

... FAN3226C, 27C 1.2 1.0 0.8 0.6 0.4 Inputs and Enables 0.2 Floating, Outputs 0 Supply Voltage (V) Figure 13. I (Static) vs. Supply Voltage DD Figure 16. I (No-Load) vs. Frequency DD © 2007 Fairchild Semiconductor Corporation FAN3226 / FAN3227 / FAN3228 / FAN3229 • Rev. 1.0.8 =12V unless otherwise noted. DD 1.6 1.4 TTL Input 1.2 1.0 0.8 0.6 0.4 0.2 0 (13) Figure 14. I 1.6 1 ...

Page 11

... Load) vs. Frequency DD 1.6 FAN3226C, 27C 1.4 1.2 1.0 0.8 0.6 0.4 Inputs and Enables Floating, Outputs 0.2 0.0 -50 - Tem perature (°C) Figure 20. I (Static) vs. Temperature DD © 2007 Fairchild Semiconductor Corporation FAN3226 / FAN3227 / FAN3228 / FAN3229 • Rev. 1.0.8 =12V unless otherwise noted. DD Figure 19. I 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 100 125 -50 (13) Figure 21. I 1.6 FAN3228C, 29C 1 ...

Page 12

... Typical Performance Characteristics Typical characteristics are provided at 25°C and V Figure 23. Input Thresholds vs. Supply Voltage Figure 26. Input Thresholds vs. Temperature © 2007 Fairchild Semiconductor Corporation FAN3226 / FAN3227 / FAN3228 / FAN3229 • Rev. 1.0.8 =12V unless otherwise noted. DD Figure 24. Input Thresholds vs. Supply Voltage Figure 25. Input Threshold % vs. Supply Voltage Figure 27 ...

Page 13

... Typical Performance Characteristics Typical characteristics are provided at 25°C and V Figure 28. UVLO Thresholds vs. Temperature Figure 30. Propagation Delays vs. Supply Voltage Figure 32. Propagation Delays vs. Supply Voltage © 2007 Fairchild Semiconductor Corporation FAN3226 / FAN3227 / FAN3228 / FAN3229 • Rev. 1.0.8 =12V unless otherwise noted. DD Figure 29. UVLO Threshold vs. Temperature Figure 31 ...

Page 14

... Typical Performance Characteristics Typical characteristics are provided at 25°C and V Figure 34. Propagation Delays vs. Temperature Figure 36. Propagation Delays vs. Temperature Figure 38. Fall Time vs. Supply Voltage © 2007 Fairchild Semiconductor Corporation FAN3226 / FAN3227 / FAN3228 / FAN3229 • Rev. 1.0.8 =12V unless otherwise noted. DD Figure 35. Propagation Delays vs. Temperature Figure 37 ...

Page 15

... Typical characteristics are provided at 25°C and V Figure 41. Rise/Fall Waveforms with 1nF Load Figure 43. Quasi-Static Source Current with V =12V DD © 2007 Fairchild Semiconductor Corporation FAN3226 / FAN3227 / FAN3228 / FAN3229 • Rev. 1.0.8 =12V unless otherwise noted. DD Figure 40. Rise and Fall Times vs. Temperature Figure 42. Rise/Fall Waveforms with 10nF Load Figure 44 ...

Page 16

... For any inverting inputs pulled low, non-inverting inputs pulled high, or outputs driven high, static I the current flowing through the corresponding pull-up/down resistor shown in the block diagram. Test Circuit © 2007 Fairchild Semiconductor Corporation FAN3226 / FAN3227 / FAN3228 / FAN3229 • Rev. 1.0.8 =12V unless otherwise noted. ...

Page 17

... I current is the value obtained from the curves DD plus this additional current. © 2007 Fairchild Semiconductor Corporation FAN3226 / FAN3227 / FAN3228 / FAN3229 • Rev. 1.0.8 MillerDrive™ Gate Drive Technology FAN322x gate drivers incorporate the MillerDrive™ architecture shown in Figure 48. For the output stage, a ...

Page 18

... 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 © 2007 Fairchild Semiconductor Corporation FAN3226 / FAN3227 / FAN3228 / FAN3229 • Rev. 1.0.8 best results, make connections to all pins as short with low ESR and and direct as possible ...

Page 19

... Pulling the IN+ pin to GND forces the output low, regardless of the state of the IN- pin. Figure 52. Dual-Input Driver Enabled, Inverting Configuration © 2007 Fairchild Semiconductor Corporation FAN3226 / FAN3227 / FAN3228 / FAN3229 • Rev. 1.0.8 Operational Waveforms At power-up, the driver output remains low until the V voltage reaches the turn-on threshold ...

Page 20

... T = board temperature in location defined in Note B 1 under Thermal Resistance table. © 2007 Fairchild Semiconductor Corporation FAN3226 / FAN3227 / FAN3228 / FAN3229 • Rev. 1.0.6 In the forward converter with synchronous rectifier shown FDMS8660S is a reasonable MOSFET selection. The gate charge for each SR MOSFET would be 60nC with ...

Page 21

... Typical Application Diagrams Figure 55. Forward Converter with Synchronous Rectification Figure 57. Phase-Shifted Full-Bridge with Two Gate Drive Transformers (Simplified) © 2007 Fairchild Semiconductor Corporation FAN3226 / FAN3227 / FAN3228 / FAN3229 • Rev. 1.0.8 Figure 56. Primary-Side Dual Driver in a Push-Pull Converter 21 www.fairchildsemi.com ...

Page 22

... FAN3100C +2.5A / -1.8A Single 2A FAN3100T +2.5A / -1.8A Dual 2A FAN3216T +2.4A / -1.6A Dual 2A FAN3217T +2.4A / -1.6A Dual 2A FAN3226C +2.4A / -1.6A Dual 2A FAN3226T +2.4A / -1.6A Dual 2A FAN3227C +2.4A / -1.6A Dual 2A FAN3227T +2.4A / -1.6A Dual 2A FAN3228C +2.4A / -1.6A Dual 2A FAN3228T +2.4A / -1.6A Dual 2A FAN3229C +2.4A / -1.6A Dual 2A FAN3229T +2.4A / -1.6A Dual 2A FAN3268T +2.4A / -1.6A Dual 2A FAN3278T +2.4A / -1.6A Dual 4A FAN3213T +2.5A / -1.8A Dual 4A FAN3214T +2.5A / -1.8A Dual 4A FAN3223C +4.3A / -2.8A Dual 4A FAN3223T +4.3A / -2.8A Dual 4A FAN3224C +4.3A / -2.8A Dual 4A FAN3224T +4.3A / -2.8A Dual 4A FAN3225C +4 ...

Page 23

... 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’ ...

Page 24

... 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’ ...

Page 25

... Fairchild Semiconductor Corporation FAN3226 / FAN3227 / FAN3228 / FAN3229 • Rev. 1.0.8 25 www.fairchildsemi.com ...

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