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onsemi FAN73912 High-Current Half-Bridge Gate-Driver IC

onsemi FAN73912 High-Current Half-Bridge Gate-Driver IC is designed for high-voltage and high-speed driving for MOSFETs and IGBTs that operate up to +1200V. The advanced input filter of HIN protects against short-pulsed input signals caused by noise. An advanced level-shift circuit offers high-side gate driver operation up to VS= -9.8V (typical) for VBS=15 V. The UVLO circuit of the onsemi FAN73912 prevents malfunction when VCC and VBS are lower than the specified threshold voltage. Output drivers typically source and sink 2A and 3A, respectively.

Features

  • Floating channel for a bootstrap operation to +1200V
  • Typically 2A/3A sourcing/sinking current driving capability for both channels
  • Gate driver supply (VCC) range from 12V to 20V
  • Separate logic supply (VDD) range from 3V to 20V
  • Extended allowable negative VS swing to -9.8V for signal propagation at VCC=VBS=15V
  • Built-in cycle-by-cycle edge-triggered shutdown logic
  • Built-in shoot-through protection logic
  • Common-mode dv/dt noise canceling circuit
  • UVLO functions for both channels
  • Built-in advanced input filter
  • Matched propagation delay below 50ns
  • Outputs in-phase with the input signal
  • Logic and power ground +/- 10V offset typical

Applications

  • Industrial motor driver
  • UPS
  • Solar inverter
  • Ballast
  • General-purpose half-bridge topology

Block Diagram

Block Diagram - onsemi FAN73912 High-Current Half-Bridge Gate-Driver IC
Inilathala: 2017-04-20 | Na-update: 2022-03-11