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LM5109 - 100V / 1A Peak Half Bridge Gate Driver

Description

The LM5109 is a low cost 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 high-side driver is capable of working with rail voltages up to 100V.

Features

  • n Drives both a high side and low side N-Channel MOSFET n 1A peak output current (1.0A sink / 1.0A source) n Independent TTL compatible inputs Package n SOIC-8 n LLP-8 (4 mm x 4 mm) Simplified Block Diagram 20150501 FIGURE 1. © 2005 National Semiconductor Corporation DS201505 www. national. com www. DataSheet. in LM5109 Connection Diagrams 20150502 20150503 FIGURE 2. Ordering Information Ordering Number LM5109MA LM5109MAX LM5109SD LM5109SDX Package Type SOIC-8 SOIC-8 LLP-8 LLP-8 NSC Pa.

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Full PDF Text Transcription

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LM5109 100V / 1A Peak Half Bridge Gate Driver April 2005 LM5109 100V / 1A Peak Half Bridge Gate Driver General Description The LM5109 is a low cost 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 high-side driver is capable of working with rail voltages up to 100V. The outputs are independently controlled with TTL compatible input thresholds. A robust level shifter technology operates at high speed while consuming low power and providing clean level transitions from the control input logic to the high side gate driver. Undervoltage lockout is provided on both the low side and the high side power rails.
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