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OB2573Y - High Precision CC/CV Primary-Side Power Switch

Download the OB2573Y datasheet PDF. This datasheet also covers the OB2573Y-On variant, as both devices belong to the same high precision cc/cv primary-side power switch family and are provided as variant models within a single manufacturer datasheet.

Key Features

  • OB2573Y is a high performance offline PSR power.
  • Primary-side sensing and regulation without switch for low power AC/DC charger and adapter TL431 and opto-coupler.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (OB2573Y-On-Bright.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number OB2573Y
Manufacturer On-Bright
File Size 760.02 KB
Description High Precision CC/CV Primary-Side Power Switch
Datasheet download datasheet OB2573Y Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
OB2573Y High Precision CC/CV Primary-Side Power Switch GENERAL DESCRIPTION FEATURES OB2573Y is a high performance offline PSR power  Primary-side sensing and regulation without switch for low power AC/DC charger and adapter TL431 and opto-coupler applications. The device integrates an internal  High precision constant voltage and current power MOSFET and operates in primary-side regulation at universal AC input sensing and regulation. Consequently,  PFM operation for efficiency improving opto-coupler and TL431 could be eliminated.  Integrated Power MOSFET Proprietary Constant Voltage (CV) and Constant  Good dynamic response Current (CC) control is integrated as shown in the  Programmable CV and CC regulation figure below.