OB3398 High Precision Off-line Primary-Side PWM Power Switch

OB3398 High Precision Off-line Primary-Side PWM Power Switch

FEATURES 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 elimina.

Features

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. Proprietary Constant Voltage
 Floating PSR control scheme with two (CV) and Constant Current (CC) control is transformer windings integrated as shown in the figure below.
 Adjustable Constant Current and Output The LED current (CC con.