OB5282A - High Voltage Green Mode PWM Controller

This page provides the datasheet information for the OB5282A, a member of the OB5282A-On High Voltage Green Mode PWM Controller family.

Datasheet Summary

Description

OB5282A is a highly integrated current mode PWM control IC with high voltage startup, optimized for high performance, low standby power consumption and cost effective offline flyback converter applications.

Features

with short startup time and low standby power loss. OB5282A offers complete protection coverage including cycle-by-cycle current limiting (OCP), over load protection (OLP), over temperature protection (OTP), output and VDD over voltage protection. Excellent EMI performance is achieved with On-Bright proprietary frequency shuffling technique. The tone energy at below 25KHz is minimized to avoid audio noise during operation. OB5282A is offered in SOP8 package.

On-Bright

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Datasheet Details

Part number	OB5282A
Manufacturer	On-Bright
File Size	755.50 KB
Description	High Voltage Green Mode PWM Controller
Datasheet	OB5282A Datasheet
Additional preview pages of the OB5282A datasheet.

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Full PDF Text Transcription

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OB5282A High Voltage Green Mode PWM Controller with Brownout GENERAL DESCRIPTION OB5282A is a highly integrated current mode PWM control IC with high voltage startup, optimized for high performance, low standby power consumption and cost effective offline flyback converter applications. The controller ‘s HV pin is used for high voltage startup, AC off detection, and X-cap Voltage discharge , this structure allows the brownout detection as well. At full loading, the IC operates in fixed frequency (65KHz) mode. When the loading goes low, it operates in Green mode with valley switching for high power conversion efficiency. When the load is very small, the IC operates in ‘Extended Burst Mode’ to minimize the standby power loss.

Published: Sep 26, 2024 |