TEA1623PH

General description

The TEA1620P is a Switched Mode Power Supply (SMPS) controller IC that operates directly from the rectified universal mains. It is implemented in the high voltage EZ-HV™ SOI process, combined with a low voltage BICMOS process. The device includes a high voltage power switch and a circuit for start-up directly from the
rectified mains voltage. A dedicated circuit for valley switching is built in, which makes a very efficient slim-line electronic power-plug concept possible.

Features

■ Designed for general purpose supplies
■ Integrated power switch: 48 Ω and 650 V
■ Operates from universal AC mains supplies: 80 V to 276 V
■ Adjustable frequency for flexible design
■ RC oscillator for load insensitive regulation loop constant
■ Valley switching for minimum switch-on loss
■ Frequency reduction at low power output for low standby power: <100 mW
■ Adjustable overcurrent protection
■ Undervoltage protection
■ Temperature protection
■ Short winding protection
■ Safe restart mode for system fault conditions
■ Simple application with both primary and secondary (opto) feedback
■ Available in 8-pin DIP package.

Applications

■ Chargers
■ Adapters
■ TV and monitor standby supplies
■ PC peripherals.