Rev. 01 鈥?17 March 2004
1. General description
directly from the recti鏗乪d universal mains. It is implemented in the high voltage EZ-HV鈩?/div>
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
recti鏗乪d mains voltage. A dedicated circuit for valley switching is built in, which makes a
very ef鏗乧ient 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 ef鏗乧ient and low cost power supply system.
2. Features
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Designed for general purpose supplies
Integrated power switch: 12
鈩?/div>
and 650 V
Operates from universal AC mains supplies: 80 V to 276 V
Adjustable frequency for 鏗俥xible 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.
3. Applications
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Adapters
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Set-Top Box (STB)
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DVD
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VCD
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CD(R)
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PC Silverbox standby SMPS.
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