OB2354 Datasheet PDF - On-Bright Electronics Current Mode PWM Power Switch Specs

OB2354 - Current Mode PWM Power Switch

This page provides the datasheet information for the OB2354, a member of the OB2354-On Current Mode PWM Power Switch family.

Datasheet Summary

Description

OB2354 combines a dedicated current mode PWM controller with a high voltage power MOSFET.

It is optimized for high performance, low standby power, and cost effective off-line flyback converter applications in sub 20W range.

Features

Power on Soft Start Reducing MOSFET Vds Stress.
Frequency shuffling for EMI.
Extended Burst Mode Control For Improved Efficiency and Minimum Standby Power Design.
Audio Noise Free Operation.
Fixed 50KHZ Switching Frequency.
Internal Synchronized Slope Compensation.
Low VDD Startup Current and Low Operating Current.
Leading Edge Blanking on Current Sense Input.
Good Protection Coverage With Auto Self- Recovery o VDD Over Voltage Clamp and Under Volta.

Datasheet Details

Part number	OB2354
Manufacturer	On-Bright Electronics
File Size	312.81 KB
Description	Current Mode PWM Power Switch
Datasheet	OB2354 Datasheet
Additional preview pages of the OB2354 datasheet.

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Full PDF Text Transcription

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OB2354 Current Mode PWM Power Switch Freq Shuffling GENERAL DESCRIPTION OB2354 combines a dedicated current mode PWM controller with a high voltage power MOSFET. It is optimized for high performance, low standby power, and cost effective off-line flyback converter applications in sub 20W range. OB2354 offers complete protection coverage with automatic self-recovery feature including Cycle-byCycle current limiting (OCP), over load protection (OLP), VDD over voltage clamp and under voltage lockout (UVLO). Excellent EMI performance is achieved with On-Bright proprietary frequency shuffling technique together with soft switching control at the totem pole gate drive output. The tone energy at below 20KHZ is minimized in the design and audio noise is eliminated during operation.

Published: Oct 20, 2019 |