BD94121F - ROHM

BD94121F White LED Driver

BD94121F is a current resonance type LED Driver with frequency-controlled LED current. It can connect to PFC directly and can use half-bridge structure reducing the number of external components. It incorporates some protection functions against fault conditions such as Over-Voltage Protection, LED Short Detection (IS High Detection) and LED Open Detection (.

Features

 20V High Rating Process
 1 Channel Push-pull Control
 Current and Voltage Feedback by Driving Frequency
 Adjustable Soft Start
 Adjustable Timer Latch
 Under-Voltage Detection for IC’s Power Line
 Output Over-Voltage Protection
 Output Error Signal from FAIL Terminal
 Shift to Save Mode by STB Terminal
 Burst Control by External PWM Signal
 Analog Dimming by External DC Signal
 Conversion Function from Pulse to DC Key Specifications
 Operating Power Supply .