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OB2283 - High Performance Current Mode PWM Controller

This page provides the datasheet information for the OB2283, a member of the OB2283-On High Performance Current Mode PWM Controller family.

Datasheet Summary

Description

OB2283 is a highly integrated current mode PWM control IC optimized for high performance, low standby power and cost effective offline flyback converter applications.

PWM switching frequency at normal operation is internally fixed and is trimmed to tight range.

Features

  • Power on soft start reducing MOSFET Vds stress.
  • Frequency shuffling for EMI.
  • Extended burst mode control for improved efficiency and low standby power design.
  • Audio noise free operation.
  • Peak load operation with increased frequency.
  • Comprehensive protection coverage o VCC Under Voltage Lockout with hysteresis (UVLO) o VCC Over Voltage Protection (VCC OVP) o Cycle-by-cycle over current threshold setting for constant output power limiting over universal input voltage.

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Datasheet preview – OB2283

Datasheet Details

Part number OB2283
Manufacturer On-Bright Electronics
File Size 276.64 KB
Description High Performance Current Mode PWM Controller
Datasheet download datasheet OB2283 Datasheet
Additional preview pages of the OB2283 datasheet.

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Full PDF Text Transcription

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OB2283 High Performance Current Mode PWM Controller GENERAL DESCRIPTION OB2283 is a highly integrated current mode PWM control IC optimized for high performance, low standby power and cost effective offline flyback converter applications. PWM switching frequency at normal operation is internally fixed and is trimmed to tight range. At no load or light load condition, the IC operates in extended ‘burst mode’ to minimize switching loss. Lower standby power and higher conversion efficiency is thus achieved. VCC low startup current and low operating current contribute to a reliable power on startup and low standby design with OB2283.
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