SC4910B Datasheet High Performance Secondary Side Controller

Manufacturer: SEMTECH

Download the SC4910B datasheet PDF. This datasheet also includes the SC4910A variant, as both parts are published together in a single manufacturer document.

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SC4910B high performance secondary side controller by SEMTECH - Datasheet Preview — Note: The manufacturer provides a single datasheet file (SC4910A_SemtechCorporation.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number	SC4910B
Manufacturer	SEMTECH
File Size	364.03 KB
Description	High Performance Secondary Side Controller
Download	SC4910B Download (PDF)

General Description

The SC4910A/B is an integrated, full featured, secondary side controller designed for use in single ended and isolated switch mode power supplies with synchronous rectification where efficiency and fast transient response are of primary concern.

The SC4910A/B has outputs for both primary FET and secondary synchronous rectification.

The primary drive output is designed to drive a small and low cost pulse transformer to isolate the primary FET driver.

Overview

High Performance Secondary Side Controller with Synchronous Rectifier POWER.

Key Features

synchronous rectification, multiphase link capability, programmable secondary side delay, programmable switching frequency and programmable maximum duty cycle. It is designed for either current mode or voltage mode operation. The SC4910A has a typical turn-on threshold of 9V and the SC4910B has a threshold of 4.5V. SC4910A/B Features Synchronous rectification with adaptive control Programmable secondary side delay Programmable switching frequency Programmable max. duty.

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