BROADCHIP BCT3258
The BCT3258 is a high performance constant current white LED driver. The BCT3258 uses an internal resistor to set the bias current for 8 LEDs, which are matched to 3%. The BCT3258's advantages over ballast resistors include much lower bias variation with supply voltage variation, significantly lower dropout voltage, and in some applications, significantly improved efficiency.| Part No. | BCT3258 |
|---|---|
| Datasheet | BCT3258 Download |
| Manufacturer |  BROADCHIP |
| Description | 8 Channel Constant Current LED Driver |
| Buy | Stock & Price |
GENERAL DESCRIPTION
The BCT3258 requires only a 50mV dropout voltage at a 20mA load on each output to match the LED brightness. Users can easily configure the LED current from 1.25mA to 20mA by a serial pulse interface. The dimming of white LEDs current can be achieved by applying a pulse signal to the EN pin. There are totally 16 steps of current could be set by users. Internal soft start circuitry effectively reduces the in-rush current while both start-up and mode transition.FEATURES
♦ Low 50mV Dropout at 20mA ♦
