SI9122 Datasheet (Vishay Siliconix) - 500-kHz Half-Bridge DC-DC Converter With Integrated Secondary Synchronous Rectification Drivers

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

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

<3.3 V).

Designed to operate within the fixed telecom voltage range of 33 *72 V and withstand 100 V, 100 ms transients, the IC is capable of controlling

SI9122 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