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UC3873B

UTC
Part Number UC3873B
Manufacturer UTC
Description LOW COST POWER-SAVING MODE PWM CONTROLLER
Published Apr 21, 2020
Detailed Description UNISONIC TECHNOLOGIES CO., LTD UC3873B LINEAR INTEGRATED CIRCUIT LOW COST POWER-SAVING MODE PWM CONTROLLER FOR FLYB...
Datasheet PDF File UC3873B PDF File

UC3873B
UC3873B

Overview
UNISONIC TECHNOLOGIES CO.
, LTD UC3873B LINEAR INTEGRATED CIRCUIT LOW COST POWER-SAVING MODE PWM CONTROLLER FOR FLYBACK CONVERTERS „ DESCRIPTION The UC3873B is a high performance current mode PWM controller ideally suited for low standby power.
Low VDD startup current make the power reliable on startup design and a large 54 6 23 1 SOT-26 value resistor could be used in the startup circuit to minimize the standby power.
At no load condition, the IC operates in power-saving mode for lower standby power, decreasing frequency for Higher conversion efficiency at light load condition.
The UC3873B contains protection with automatic recovery including OLP (over load protection), programm...


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