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LM5109B

National Semiconductor
Part Number LM5109B
Manufacturer National Semiconductor
Description High Voltage 1A Peak Half Bridge Gate Driver
Published Nov 10, 2010
Detailed Description LM5109B High Voltage 1A Peak Half Bridge Gate Driver February 2007 LM5109B High Voltage 1A Peak Half Bridge Gate Drive...
Datasheet PDF File LM5109B PDF File

LM5109B
LM5109B

Overview
LM5109B High Voltage 1A Peak Half Bridge Gate Driver February 2007 LM5109B High Voltage 1A Peak Half Bridge Gate Driver General Description The LM5109B 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 high-side driver is capable of working with rail voltages up to 90V.
The outputs are independently controlled with TTL compatible input thresholds.
The robust level shift 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.
Under-voltage lockout is provided on both the low-side and the high-side power rails.
The device is available in the SOIC-8 and the thermally enhanced LLP-8 packages.
■ ■ ■ ■ ■ ■ Fast propagation times (30 ns typical) Drives 1000 pF load with 15ns rise and fall times Excellent propagation delay matching (2 ns typical) Supply rail...


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