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LM5100 - High Voltage High Side and Low Side Gate Driver

Description

The LM5100/LM5101 High Voltage Gate Drivers are 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 operating with supply voltages up to 100V.

Features

  • n Drives both a high side and low side N-Channel MOSFET n Independent high and low driver logic inputs (TTL for LM5101 or CMOS for LM5100) Package n SOIC-8 n LLP-10 (4 mm x 4 mm) Simplified Block Diagram 20088803 FIGURE 1. © 2004 National Semiconductor Corporation DS200888 www. national. com LM5100/LM5101 Connection Diagrams 20088801 20088802 FIGURE 2. Ordering Information Ordering Number LM5100/01M LM5100/01MX LM5100/01SD LM5100/01SDX Package Type SOIC-8 SOIC-8 LLP-10 LLP-10 NSC Pack.

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LM5100/LM5101 High Voltage High Side and Low Side Gate Driver January 2004 LM5100/LM5101 High Voltage High Side and Low Side Gate Driver General Description The LM5100/LM5101 High Voltage Gate Drivers are 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 operating with supply voltages up to 100V. The outputs are independently controlled with CMOS input thresholds (LM5100) or TTL input thresholds (LM5101). An integrated high voltage diode is provided to charge the high side gate drive bootstrap capacitor. A robust level shifter operates at high speed while consuming low power and providing clean level transitions from the control logic to the high side gate driver.
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