DatasheetsPDF.com

DP2539B

DEVELOPER MICROELECTRONICS
Part Number DP2539B
Manufacturer DEVELOPER MICROELECTRONICS
Description High Precision CC/CV Primary-Side PWM Power Switch
Published Oct 31, 2018
Detailed Description DP2539B High Precision CC/CV Primary-Side PWM Power Switch GENERAL DESCRIPTION DP2539B is a high performance offline PW...
Datasheet PDF File DP2539B PDF File

DP2539B
DP2539B

Overview
DP2539B High Precision CC/CV Primary-Side PWM Power Switch GENERAL DESCRIPTION DP2539B is a high performance offline PWM power switch for low power AC/DC charger and adapter applications.
It operates in primary-side sensing and regulation.
Consequently, opto-coupler and TL431 could be eliminated.
High Precision Constant Voltage (CV) and Constant Current (CC) control are 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 Compensation.
Device operates in PFM in CC mode as well at large load condition and it operates in PWM with frequency reduction at light/medium load.
The chip consumes very low operation current, it can achieve less than 75mW standby power.
DP2539B offers comprehensive protection coverage with aut...


Similar Datasheet


Since 2006. D4U Semicon,
Electronic Components Datasheet Search Site. (Privacy Policy & Contact)