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UC3838

Part Number	UC3838
Manufacturer	UTC
Description	PWM CONTROLLER
Published	Oct 22, 2023
Detailed Description	UNISONIC TECHNOLOGIES CO., LTD UC3838 Preliminary LOW COST POWER-SAVING MODE PWM CONTROLLER FOR FLYBACK CONVERTERS ...
Datasheet	UC3838 PDF File

Overview

UNISONIC TECHNOLOGIES CO.
, LTD UC3838 Preliminary LOW COST POWER-SAVING MODE PWM CONTROLLER FOR FLYBACK CONVERTERS  DESCRIPTION The UTC UC3838 provides a CCM switching mixed mode operation for better efficiency performance.
The operation mode stays at CCM at heavy load, and switch to power-saving mode at light load.
The UTC UC3838 is a high performance current mode PWM controller ideally suited for low standby power.
Low VCC 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 High...

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