OB3398 Datasheet PDF

On-Bright OB3398

OB3398 is a primary side regulation off-line LED High Precise Constant Current Regulation at lighting controller which can achieve accurate LED Universal AC input current. It significantly simplifies LED lighting Primary-side Sensing and Regulation Without system design by eliminating the secondary side TL431 and Opto-coupler feedback circuitry. Built-in Primary winding inductance OB3398 offers comprehensive protection compensation coverage with auto-recovery features including Built-in Leading Edge Blanking (LEB) Cycle-by-Cycle current limiting, VDD clamp and Cycle-by-Cycle Current Limiting UVLO.