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OB2576MP - High Performance QR mode controller

Download the OB2576MP datasheet PDF (OB2576MP-On included). The manufacturer datasheet provides complete specifications, pinout details, electrical characteristics, and typical applications for high performance qr mode controller.

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.

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 OB2576MP
Manufacturer On-Bright
File Size 934.60 KB
Description High Performance QR mode controller
Datasheet download datasheet OB2576MP Datasheet

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Full PDF Text Transcription

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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.
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