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OB2201 - High Performance Quasi-Resonant PWM Controller

This page provides the datasheet information for the OB2201, a member of the OB2201-On High Performance Quasi-Resonant PWM Controller family.

Datasheet Summary

Description

OB2201 is a high performance flyback QuasiResonant (QR) controller optimized to achieve high efficiency in the universal input range and full loading range with effective system cost.

Features

  • protections against pin open and short conditions on selected pins. OB2201 is offered in SOP-8 and DIP-8 packages.

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Datasheet preview – OB2201

Datasheet Details

Part number OB2201
Manufacturer On-Bright Electronics
File Size 332.28 KB
Description High Performance Quasi-Resonant PWM Controller
Datasheet download datasheet OB2201 Datasheet
Additional preview pages of the OB2201 datasheet.

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Full PDF Text Transcription

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High Performance Quasi-Resonant PWM Controller OB2201 Product Specification GENERAL DESCRIPTION OB2201 is a high performance flyback QuasiResonant (QR) controller optimized to achieve high efficiency in the universal input range and full loading range with effective system cost. At full loading, the IC operates in fix frequency (52KHz) CCM mode in the low line input range and operates in QR mode in high line input range. In this way, high efficiency in the universal input range at full loading can be achieved. At normal load condition, it operates in QR mode. To minimize switching loss, the maximum switching frequency in QR mode is internally limited to 90 KHz. When the loading goes low, it operates in PFM mode for high power conversion efficiency.
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