TTL input, dual inverting or non-inverting output, peak 3A sink, 3A source current Low-Side Gate Driver

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Overview

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. 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 FAN322X drivers incorporate 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 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.

  • AC-DC Merchant Power Supply - Servers & Workstations
  • Industry-Standard Pinouts
  • 4.5 to 18V Operating Range
  • 3A Peak Sink/Source at VDD = 12V
  • 2.4A Sink / 1.6A Source at VOUT = 6V
  • Choice of TTL or CMOS Input Thresholds
  • Four Versions of Dual Independent Drivers:
  • Dual Inverting + Enable (FAN3226)
  • Dual Non-Inverting + Enable (FAN3227)
  • Dual-Inputs in Two Pin-Out Configurations:
      ■ Compatible with FAN3225x (FAN3228)
      ■ Compatible with TPS2814D (FAN3229)
  • 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
  • Rated from –40°C to +125°C Ambient
  • 8-Lead 3x3mm MLP or 8-Lead SOIC Package

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FAN3229TMX

Active

Pb

A

H

P

SOIC-8

1

260

REEL

2500

Y

MOSFET

2

Dual

Non-Isolated

-

18

12

9

3

3

19

18

22

$0.5681

More Details

FAN3229TMPX

Active

Pb

A

H

P

WDFN-8

1

260

REEL

3000

Y

MOSFET

2

Dual

Non-Isolated

-

18

12

9

3

3

19

18

22

$0.5728

More Details

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