SM72295 3A Full Bridge Gate Driver with integrated Current Sense Amplifier SM72295 | TI.com

SM72295
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3A Full Bridge Gate Driver with integrated Current Sense Amplifier SM72295

3A Full Bridge Gate Driver with integrated Current Sense Amplifier SM72295 - SM72295
Datasheet
 

Description

The SM72295 is designed to drive 4 discrete N type MOSFET’s in a full bridge configuration. The drivers provide 3A of peak current for fast efficient switching and integrated high speed bootstrap diodes. Current sensing is provided by 2 transconductance amplifiers with externally programmable gain and filtering to remove ripple current to provide average current information to the control circuit. The current sense amplifiers have buffered outputs available to provide a low impedance interface to an A/D converter if needed. An externally programmable input over voltage comparator is also included to shutdown all outputs. Under voltage lockout with a PGOOD indicator prevents the drivers from operating if VCC is too low.

Features

  • Renewable Energy Grade
  • Dual Half Bridge MOSFET Drivers
  • Integrated 100V Bootstrap Diodes
  • Independent High and Low Driver Logic Inputs
  • Bootstrap Supply Voltage Range up to 115V DC
  • Two Current Sense Amplifiers with Externally Programmable Gain and Buffered Outputs
  • Programmable Over Voltage Protection
  • Supply Rail Under-Voltage Lockouts with Power Good Indicator

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Package

  • SOIC-28

Parametrics

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Part number Order Number of channels (#) Power switch Bus voltage (Max) (V) Peak output current (A) Input VCC (Min) (V) Input VCC (Max) (V) Rise time (ns) Fall time (ns) Prop delay (ns) Iq (uA) Input threshold Channel input logic Negative voltage handling at HS pin (V) Features Rating Operating temperature range (C) Package Group
SM72295 Order now 4     MOSFET     100     3     8     14     8     8     22     10     TTL     TTL     -1     Current Sense     Catalog     -40 to 125     SOIC | 28