OB339F - High Precision Off-line Primary-Side PWM Power Switch

On-Bright

Download the OB339F datasheet PDF. This datasheet also covers the OB339F-On variant, as both devices belong to the same high precision off-line primary-side pwm power switch family and are provided as variant models within a single manufacturer datasheet.

📥 Download Datasheet

OB339F high precision off-line primary-side pwm power switch by On-Bright - Datasheet Preview — Note: The manufacturer provides a single datasheet file (OB339F-On-Bright.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number	OB339F
Manufacturer	On-Bright
File Size	777.05 KB
Description	High Precision Off-line Primary-Side PWM Power Switch
Datasheet	OB339F Datasheet

General Description

OB339F is a primary side regulation off-line LED lighting controller which can achieve accurate LED current.

It significantly simplifies LED lighting system design by eliminating the secondary side feedback circuitry.

Proprietary Constant Voltage (CV) and Constant Current (CC) control is integrated as shown in the figure below.

Overview

OB339F High Precision Off-line Primary-Side PWM Power Switch.

Key Features

including Cycle-by-Cycle current limiting, VDD OVP, VDD clamp and UVLO. Excellent EMI performance is achieved with On-Bright proprietary frequency shuffling technique. OB339F is offered in DIP8 package.

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