Download LM5109A Datasheet PDF
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LM5109A Description

The LM5109A is a cost effective, high voltage gate driver designed to drive both the high-side and the low-side N-Channel MOSFETs in a synchronous buck or a half bridge configuration. The floating highside driver is capable of working with rail voltages up to 90V. The outputs are independently controlled with TTL patible input thresholds.

LM5109A Key Features

  • 1 Drives Both a High-Side and Low-Side N-Channel MOSFET
  • 1A peak Output Current (1.0A Sink / 1.0A Source)
  • Independent TTL patible Inputs
  • Bootstrap Supply Voltage to 108V DC
  • Fast Propagation Times (30 ns Typical)
  • Drives 1000 pF Load with 15ns Rise and Fall
  • Excellent Propagation Delay Matching (2 ns
  • Supply Rail Under-Voltage Lockout
  • Low Power Consumption
  • Pin patible with ISL6700