BD94121F Description
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 ponents. It incorporates some protection functions against fault conditions such as Over-Voltage Protection, LED Short Detection (IS High Detection) and LED Open Detection (IS Low Detection).
BD94121F Key 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