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OB2520

Part Number	OB2520
Manufacturer	On-Bright Electronics
Description	High Precision CC/CV Primary-Side Controller
Published	Dec 6, 2016
Detailed Description	On Bright Confidential to Salcomp OB2520 High Precision CC/CV Primary-Side Controller GENERAL DESCRIPTION OB2520 is a ...
Datasheet	OB2520 PDF File

Overview

On Bright Confidential to Salcomp OB2520 High Precision CC/CV Primary-Side Controller GENERAL DESCRIPTION OB2520 is a high performance offline PSR controller 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.
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, PFM operations are utilized to achieve high performance and high efficiency.
In addition, good load regulation is achieved by the buil...

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