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SI9112 - High-Voltage Switchmode Controller

General Description

The Si9112 is a BiC/DMOS integrated circuit designed for use in high-efficiency switchmode power converters.

A high-voltage DMOS input allows this controller to work over a wide range of input voltages (9- to 80-VDC).

Key Features

  • D 9- to 80-V Input Range D Current-Mode Control D High-Speed, Source-Sink Output Drive D High Efficiency Operation (> 80%) D Internal Start-Up Circuit D Internal Oscillator (1 MHz) D.

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Datasheet Details

Part number SI9112
Manufacturer Vishay
File Size 71.46 KB
Description High-Voltage Switchmode Controller
Datasheet download datasheet SI9112 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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Si9112 Vishay Siliconix High-Voltage Switchmode Controller FEATURES D 9- to 80-V Input Range D Current-Mode Control D High-Speed, Source-Sink Output Drive D High Efficiency Operation (> 80%) D Internal Start-Up Circuit D Internal Oscillator (1 MHz) D SHUTDOWN and RESET DESCRIPTION The Si9112 is a BiC/DMOS integrated circuit designed for use in high-efficiency switchmode power converters. A high-voltage DMOS input allows this controller to work over a wide range of input voltages (9- to 80-VDC). Current-mode PWM control circuitry is implemented in CMOS to reduce internal power consumption to less than 10 mW. A CMOS output driver provides high-speed switching of MOSPOWER devices large enough to supply 50 W of output power.