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LM5105 - 100V Half Bridge Gate Driver

General Description

The LM5105 is a high voltage gate driver designed to drive both the high side and low side N

Channel MOSFETs in a synchronous buck or half bridge configuration.

The floating high-side driver is capable of working with rail voltages up to 100V.

Key Features

  • Drives both a high side and low side N-channel MOSFET.
  • 1.8A peak gate drive current.
  • Bootstrap supply voltage range up to 118V DC.
  • Integrated bootstrap diode.
  • Single TTL compatible Input.
  • Programmable turn-on delays (Dead-time).
  • Enable Input pin.
  • Fast turn-off propagation delays (26ns typical).
  • Drives 1000pF with 15ns rise and fall time.
  • Supply rail under-voltage lockout.
  • Low power consumption Typical.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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LM5105 100V Half Bridge Gate Driver with Programmable Dead-Time LM5105 May 26, 2011 100V Half Bridge Gate Driver with Programmable DeadTime General Description The LM5105 is a high voltage gate driver designed to drive both the high side and low side N –Channel MOSFETs in a synchronous buck or half bridge configuration. The floating high-side driver is capable of working with rail voltages up to 100V. The single control input is compatible with TTL signal levels and a single external resistor programs the switching transition dead-time through tightly matched turn-on delay circuits. A high voltage diode is provided to charge the high side gate drive bootstrap capacitor.