Description

The SC4812 is a highly integrated current mode PWM controller designed for isolated or non-isolated dc-dc converters in telecommunication and data communication applications. It minimizes the amount of external discrete components needed and leads to substantial cost and space saving converter designs.

Features

◆ Wide input range 12V to 90V

◆ High-voltage start-up circuit

◆ Current mode control

◆ Transconductance error amplifier

◆ Leading-edge blanking

◆ Cycle by cycle current limit

◆ Programmable external soft-start

◆ Thermal shutdown

◆ SO-8 package. Fully WEEE and RoHS compliant

Applications

◆ IP phones, PoE

◆ Telecom isolated converters

◆ Off-line isolated power supplies

◆ Instrumentation power supplies

◆ Battery chargers