Description

The SC4808A/B is a dual-ended, high frequency, integrated PWM controller, optimized for isolated applications that require minimum space. It can be configured for current or voltage mode operation with required control circuitry where secondary side error amplifier is used.

Features

◆ 120µA starting current

◆ Pulse by pulse current limit

◆ Programmable operation up to 1MHz

◆ Internal soft start

◆ Programmable line undervoltage lockout

◆ Over current shutdown

◆ Dual output drive stages on push-pull configuration

◆ Programmable internal slope compensation

◆ Programmable mode of operation (peak current mode or voltage mode)

◆ External frequency synchronization

◆ Bi-phase mode of operation

◆ -40 to 105 °C operating temperature

◆ 10 Pin MSOP lead free package available. WEEE and RoHS compliant.

Applications

◆ Telecom equipment and power supplies

◆ Networking power supplies

◆ Industrial power supplies

◆ Push-pull converter

◆ Half bridge converter

◆ Full bridge converter

◆ Isolated VRM’s