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OB2535 - High Precision CC/CV Primary-Side PWM Power Switch

This page provides the datasheet information for the OB2535, a member of the OB2535-On High Precision CC/CV Primary-Side PWM Power Switch family.

Datasheet Summary

Description

OB2535 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.

Features

  • including Cycle-by-Cycle current limiting, VDD OVP, VDD clamp and UVLO. Excellent EMI performance is achieved with On-Bright proprietary frequency shuffling technique. High precision constant voltage (CV) and constant current (CC) can be achieved by OB2535.

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Datasheet preview – OB2535

Datasheet Details

Part number OB2535
Manufacturer On-Bright Electronics
File Size 603.36 KB
Description High Precision CC/CV Primary-Side PWM Power Switch
Datasheet download datasheet OB2535 Datasheet
Additional preview pages of the OB2535 datasheet.

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Full PDF Text Transcription

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OB2535 High Precision CC/CV Primary-Side PWM Power Switch GENERAL DESCRIPTION OB2535 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 compensation.
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