Gate Drivers | FAD3224TUMX-F085

Dual Low-Side Gate Driver, 4 A, High-Speed

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Overview

The FAD3224T family of dual 4 A 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. 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 also enables connecting two drivers in parallel to effectively double the current capability driving a single MOSFET. The FAD3224 has dual independent enable pins that default to ON if not connected. 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.

  • Switch-Mode Power Supplies
  • High-Efficiency MOSFET Switching
  • Synchronous Rectifier Circuits
  • DC-to-DC Converters
  • Motor Control
  • Automotive-Qualified Systems (F085 version)

  • Automotive

  • Industry-Standard Pinouts
  • 4.5-V to 30-V Operating Range
  • 5-A Peak Sink/Source per channel at VDD = 12 V
  • 4.3-A Sink / 2.8-A Source per channel at VOUT = 6 V
  • two Versions of Dual Drivers:
     - Non Inverting + Enable + high UVLO (FAN3224TUMX)
     - Non-Inverting + Enable + low UVLO (FAN3224TMX)
  • TTL Input Thresholds
  • Internal Resistors Turn Driver Off If No Inputs
  • 12-ns / 9-ns Typical Rise/Fall Times (2.2-nF Load)
  • Under 20-ns Typical Propagation Delay Matched within 1 ns to the Other Channel
  • Double Current Capability by Paralleling Channels
  • 8-Lead 8-Lead SOIC Package
  • Rated from –40°C to +125°C Ambient
  • Automotive Qualified to AEC-Q100 (F085 Version)

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FAD3224TUMX-F085

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CAD Model

Pb

A

H

P

SOIC-8

751EB

3

225

REEL

2500

No

~NA~

2

Low Side

~NA~

30

30

20

17

-2.8

4.3

29

29

4

$0.7062

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