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LT1548

Part Number	LT1548
Manufacturer	Longtium Microelectronics
Description	High Precision CC/CV Primary-Side PWM Power Switch
Published	Aug 19, 2014
Detailed Description	LT1548 High Precision CC/CV Primary-Side PWM Power Switch GENERAL DESCRIPTION LT1548 is a high performance offline PWM P...
Datasheet	LT1548 PDF File

Overview

LT1548 High Precision CC/CV Primary-Side PWM Power Switch GENERAL DESCRIPTION LT1548 is a high performance offline PWM Power switch for low power AC/DC charger and adaptor applications.
It operates in primary-side sensing and regulation.
Consequently, opto-coupler and TL431 could be eliminated.
Proprietary Constant Voltage (CV) and Constant Current (CC) control is integrated as shown in the figure below.
In CC control, the current and output power setting can be adjusted externally by the sense resistor Rs at CS pin.
In CV control, multi-mode operations are utilized to achieve high performance and high efficiency.
In addition, good load regulation is achieved by the built-in cable drop compe...

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