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OB2576CMP - High Performance QR mode controller

Download the OB2576CMP datasheet PDF. This datasheet also covers the OB2576MP-On variant, as both devices belong to the same high performance qr mode controller family and are provided as variant models within a single manufacturer datasheet.

General Description

OB2576x is an excellent primary side regulation controller with CC/CV operation for medium level power AC/DC charger and adapter applications.

The device operates in QR mode to provide high efficiency along with several functions of built-in protections.

Key Features

  • Primary-side sensing and regulation operates in QR mode without TL431 and opto-coupler.
  • High precision constant voltage and current regulation at universal AC input.
  • Programmable CV and CC regulation.
  • Good dynamic response.
  • Built-in line compensation for tight CC regulation.
  • Built-in fixed cable compensation.
  • Built-in primary winding inductance compensation.
  • Built-in control loop compensation.
  • Built-in leading edge blanking (LEB).
  • Ultra low star.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (OB2576MP-On-Bright.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number OB2576CMP
Manufacturer On-Bright
File Size 934.60 KB
Description High Performance QR mode controller
Datasheet download datasheet OB2576CMP Datasheet

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Other Datasheets by On-Bright

Part Number Description
OB2576AMP High Performance QR mode controller
OB2576BMP High Performance QR mode controller
OB2576MP High Performance QR mode controller
OB2573Y High Precision CC/CV Primary-Side Power Switch
OB2530T High Precision CC/CV Primary-Side Power Switch

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
OB2576x High Performance QR mode controller GENERAL DESCRIPTION OB2576x is an excellent primary side regulation controller with CC/CV operation for medium level power AC/DC charger and adapter applications. The device operates in QR mode to provide high efficiency along with several functions of built-in protections. It removes the need for secondary feedback circuitry to lower the total bill of material cost. Proprietary Constant Voltage (CV) and Constant Current (CC) control is integrated as shown in the figure below. In CV control, the controller changes the mode of operation according to load condition. At full loading, the controller operates in quasi-resonant (QR) mode in the universal line voltage.