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SI9122 - 500-kHz Half-Bridge DC-DC Converter With Integrated Secondary Synchronous Rectification Drivers

Description

Si9122 is a dedicated half-bridge IC ideally suited to fixed telecom applications where efficiency is required at low output voltages (e.g.

Features

  • D 12-V to 72-V Input Voltage Range D Compatible with ETSI 300 132-2 D Integrated Half Bridge Primary Drivers (1-A Drive Capability) D Secondary Synchronous Signals With Programmable Deadtime Delay D Voltage Mode Control D Voltage Feedforward Compensation D High Voltage Pre-Regulator Operates During Start-Up D Current Sensing On Low-Side Primary Device D Frequency Foldback Eliminates Constant Current Tail D Advanced Maximum Current Control During Start-Up and Shorted Load D Low Input Voltage Dete.

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Datasheet Details

Part number SI9122
Manufacturer Vishay
File Size 218.26 KB
Description 500-kHz Half-Bridge DC-DC Converter With Integrated Secondary Synchronous Rectification Drivers
Datasheet download datasheet SI9122 Datasheet

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Full PDF Text Transcription

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Si9122 Vishay Siliconix 500-kHz Half-Bridge DC-DC Converter With Integrated Secondary Synchronous Rectification Drivers FEATURES D 12-V to 72-V Input Voltage Range D Compatible with ETSI 300 132-2 D Integrated Half Bridge Primary Drivers (1-A Drive Capability) D Secondary Synchronous Signals With Programmable Deadtime Delay D Voltage Mode Control D Voltage Feedforward Compensation D High Voltage Pre-Regulator Operates During Start-Up D Current Sensing On Low-Side Primary Device D Frequency Foldback Eliminates Constant Current Tail D Advanced Maximum Current Control During Start-Up and Shorted Load D Low Input Voltage Detection D Programmable Soft-Start Function D Over Temperature Protection APPLICATIONS D Network Cards D Power Supply Modules DESCRIPTION Si9122 is a dedicated half-bridge
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