DatasheetsPDF.com

BCT3220

BROADCHIP
Part Number BCT3220
Manufacturer BROADCHIP
Description 4 Channel LED Driver
Published Mar 12, 2019
Detailed Description November, 2008, REV2.0 BCT3220 4 Channel LED Driver (Common-Anode & Common-Cathode) Low Dropout Current Source & Current...
Datasheet PDF File BCT3220 PDF File

BCT3220
BCT3220


Overview
November, 2008, REV2.
0 BCT3220 4 Channel LED Driver (Common-Anode & Common-Cathode) Low Dropout Current Source & Current Sink General Description The BCT3220 is a high performance white LED driver.
The BCT3220 uses an internal resistor to set the bias current for four LEDs, which are matched to +/-1.
5%.
The BCT3220'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.
The BCT3220 requires only a 50mV dropout voltage at a 20mA load on each output to match the LED brightness.
By using one SEL pin, the BCT3220 can support to drive 4 parallel Co-Anode or Co-Cathode white LEDs and regulates a constant current for uniform intensity.
Users can easily configure the LED current from 2.
5mA to 20mA by a serial pulse.
The dimming of white LEDs current can be achieved by applying a pulse signal to the EN pin.
There are totally 8 steps of current could be ...



Similar Datasheet


Since 2006. D4U Semicon,
Electronic Components Datasheet Search Site. (Privacy Policy & Contact)