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LM5109ASD Datasheet(PDF) 1 Page - National Semiconductor (TI) |
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LM5109ASD Datasheet(HTML) 1 Page - National Semiconductor (TI) |
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1 / 9 page  LM5109A High Voltage 1A Peak Half Bridge Gate Driver General 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 high-side driver is capable of working with rail voltages up to 90V. The outputs are inde- pendently controlled with TTL compatible input thresholds. The robust level shift technology operates at high speed while consuming low power and providing clean level tran- sitions 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. 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 n Bootstrap supply voltage to 108V DC n Fast propagation times (30 ns typical) n Drives 1000 pF load with 15ns rise and fall times n Excellent propagation delay matching (2 ns typical) n Supply rail under-voltage lockout n Low power consumption n Pin compatible with ISL6700 Typical Applications n Current Fed push-pull converters n Half and Full Bridge power converters n Solid state motor drives n Two switch forward power converters Package n SOIC-8 n LLP-8 (4 mmx4mm) Simplified Block Diagram 20170201 FIGURE 1. April 2006 © 2006 National Semiconductor Corporation DS201702 www.national.com |
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