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SI9912 - Half-Bridge MOSFET Driver for Switching Power Supplies

General Description

The Si9912 is a dual MOSFET high-speed driver with break-before-make.

It is designed to operate in high frequency dc-dc switchmode power supplies.

The high-side driver is bootstrapped to handle the high voltage slew rate associated with “floating” high-side gate drivers.

Key Features

  • D D D D D D D D D D 4.5- to 5.5-V Operation Undervoltage Lockout 250-kHz to 1-MHz Switching Frequency Shutdown Quiescent Current.

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Datasheet Details

Part number SI9912
Manufacturer Vishay
File Size 95.15 KB
Description Half-Bridge MOSFET Driver for Switching Power Supplies
Datasheet download datasheet SI9912 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Si9912 Vishay Siliconix Half-Bridge MOSFET Driver for Switching Power Supplies FEATURES D D D D D D D D D D 4.5- to 5.5-V Operation Undervoltage Lockout 250-kHz to 1-MHz Switching Frequency Shutdown Quiescent Current <5 mA One Input PWM Signal Generates Both Drive Bootstrapped High-Side Drive Operates from 4.5- to 30-V Supply TTL/CMOS Compatible Input Levels 1-A Peak Drive Current Break-Before-Make Circuit APPLICATIONS D D D D D Multiphase Desktop CPU Supplies Single-Supply Synchronous Buck Converters Mobile Computing CPU Core Power Converters Standard-Synchronous Converters High Frequency Switching Converters DESCRIPTION The Si9912 is a dual MOSFET high-speed driver with break-before-make. It is designed to operate in high frequency dc-dc switchmode power supplies.