Datasheet Summary
GreenChip PC primary control IC
Rev. 01
- 6 February 2009
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Product data sheet
1. General description
The TEA1771 is a primary control IC for an active clamp forward converter. This converter enables higher duty cycles of up to 70 %. A higher maximum duty cycle lowers the required breakdown voltage of both the primary and secondary switches, reducing the total cost of the system. The IC is optimized for (ATX) PC power supplies. Together with the TEA1781 and TEA1782 a unique system can be made that reduces costs by integrating the standby supply. It assures high output voltage accuracy and avoids cross regulation as the output voltages are regulated separately....