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OB2502 - High Precision CC/CV Primary-Side Power Switch

Download the OB2502 datasheet PDF. This datasheet also includes the OB2502-On variant, as both parts are published together in a single manufacturer document.

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Note: The manufacturer provides a single datasheet file (OB2502-On-BrightElectronics.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number OB2502
Manufacturer On-Bright
File Size 821.93 KB
Description High Precision CC/CV Primary-Side Power Switch
Datasheet download datasheet OB2502 Datasheet

General Description

OB2502x is a high performance offline PSR 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.

Overview

OB2502x High Precision CC/CV Primary-Side Power Switch GENERAL.

Key Features

  • Primary-side sensing and regulation without TL431 and opto-coupler.
  • High precision constant voltage and current regulation at universal AC input.
  • Multi-mode PWM/PFM operation for efficiency improving.
  • Integrated 2A/3A MOSFET.
  • Good dynamic response with synchronous rectifier.

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