Part # LM5109 datasheet

Part Manufacturer: National Semiconductor

National Semiconductor

Part Description: LM5109 100V 1A Peak Half Bridge Gate Driver

Part Details:

LM5109 April 2005 100V LM5109100V / 1A Peak Half Bridge Gate Driver /1 General Description n Bootstrap supply voltage to 118V DC A n Fast propagation times (27 ns typical) The LM5109 is a low cost high voltage gate driver, designed Peak n Drives 1000 pF load with 15ns rise and fall times to drive both the high side and the low side N-ChannelMOSFETs in a synchronous buck or a half bridge configura- n Excellent propagation delay matching (2 ns typical) tion. The floating high-side driver is capable of working with n Supply rail under-voltage lockout rail voltages up to 100V. The outputs are independently n Low power consumption Half controlled with TTL compatible input thresholds. A robust n Pin compatible with ISL6700 level shifter technology operates at high speed while con-suming low power and providing clean level transitions from Typical Applications Bridge the control input logic to the high side gate driver. Under- n Current Fed push-pull converters voltage lockout is provided on both the low side and the highside power rails. The device is available in the SOIC-8 and n Half and Full Bridge power converters the thermally enhanced LLP-8 packages. n Solid state motor drives n Two switch forward power converters Gate Features Package n Drives both a high side and low side N-Channel MOSFET n SOIC-8 Driver n 1A peak output current (1.0A sink / 1.0A source) n LLP-8 (4 mm x 4 mm) n Independent TTL compatible inputs Simplified Block Diagram 20150501 FIGURE 1. © 2005 National Semiconductor Corporation DS201505 Connection Diagrams LM5109 20150502 20150503 FIGURE 2.

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LM5109.pdf Datasheet