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OB2520 - High Precision CC/CV Primary-Side Controller

Download the OB2520 datasheet PDF (OB2520-On included). The manufacturer datasheet provides complete specifications, pinout details, electrical characteristics, and typical applications for high precision cc/cv primary-side controller.

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.

Features

  • including Cycle-by-Cycle current limiting, VDD ov.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (OB2520-On-BrightElectronics.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number OB2520
Manufacturer On-Bright
File Size 401.71 KB
Description High Precision CC/CV Primary-Side Controller
Datasheet download datasheet OB2520 Datasheet

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Full PDF Text Transcription

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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 built-in cable drop compensation.
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