TEA1622P

www.DataSheet4U.com TEA1622P STARplugTM Rev. 01 — 17 March 2004 Product data sheet 1. General description The TEA1622P 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. In its most basic version of application, the TEA1622P acts as a voltage source. Here, no additional secondary electronics are required. A combined voltage and current source can be realized with minimum costs for external components. Implementation of the TEA1622P renders an efficient and low cost power supply system. 2. Features s s s s s s s s s s s s s s Designed for general purpose supplies Integrated power switch: 12 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 (op...