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