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UC3849B

Part Number	UC3849B
Manufacturer	UTC
Description	LOW COST POWER-SAVING MODE PWM CONTROLLER
Published	Apr 20, 2020
Detailed Description	UNISONIC TECHNOLOGIES CO., LTD UC3849B LINEAR INTEGRATED CIRCUIT LOW COST POWER-SAVING MODE PWM CONTROLLER FOR FLYBAC...
Datasheet	UC3849B PDF File

Overview

UNISONIC TECHNOLOGIES CO.
, LTD UC3849B LINEAR INTEGRATED CIRCUIT LOW COST POWER-SAVING MODE PWM CONTROLLER FOR FLYBACK CONVERTERS  DESCRIPTION The UC3849B 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 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 UC3849B contains protection with automatic recovery including OLP (over load protection), programming OTP (over temperatur...

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