BCT3221 is 4-Channel LED Driver manufactured by BROADCHIP.
| Part Number | Description |
|---|---|
| BCT3220 | 4-Channel Common-Anode LED Driver |
| BCT3222 | 6 Channel LED Driver |
| BCT3228 | 8 Channel LED Driver |
| BCT3236 | 36-CHANNELS LED DRIVER |
| BCT3253 | 3ch Current Sink RGB LED driver |
The BCT3221 is a high performance white LED driver. The BCT3221 uses an internal resistor to set the bias current for four LEDs, which are matched to +/-1.5%. The BCT3221'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.
