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OB3639B - Low THD Offline LED Lighting Controller

Product Overview

On-Bright

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OB3639B Low THD Offline LED Lighting Controller by On-Bright - Datasheet Preview — Datasheet preview – OB3639B

Datasheet Details

Part number	OB3639B
Manufacturer	On-Bright
File Size	412.03 KB
Description	Low THD Offline LED Lighting Controller
Datasheet	OB3639B Datasheet
Note	This datasheet PDF includes multiple part numbers: OB3639B, OB3639B-On. Please refer to the document for exact specifications by model.
Additional preview pages of the OB3639B datasheet.

Product details

Description

OB3639B is an offline LED lighting controller with high power factor, low THD and high constant current (CC) precision.

Features

including programmable line voltage foldback , programmable line voltage OVP, NTC thermistor thermal foldback, LED open loop protection, LED short circuit protection, cycle-by-cycle current limiting, built-in leading edge blanking, VDD under voltage lockout (UVLO), etc. OB3639B is offered in SOP-8 package.

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Published: May 25, 2025 |