WD3139 Description
WD3139 High Efficiency, 38V Step-Up White LED Driver WD3139 Http//:.sh-willsemi. Descriptions The WD3139 is a constant current, high efficiency LED driver. Internal MOSFET can drive up to 10 white LEDs in series with 1.2A current limit and 38V OVP.
WD3139 Key Features
- Input voltage range
- Open LED Protection
- Reference Voltage
- Switching frequency
- Efficiency
- Main switch current limit : 1.2A (Typ.)
- PWM Dimming frequency : 5KHz to200KHz
- PWM Dimming Duty Cycle : 0.5% ~ 100%