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BCT3228

Part Number	BCT3228
Manufacturer	BROADCHIP
Description	8 Channel LED Driver
Published	Mar 12, 2019
Detailed Description	August , 2011, REV1.0 BCT3228 preliminary 8 Channel LED Driver (Common-Anode & Common-Cathode) Low Dropout Current Sourc...
Datasheet	BCT3228 PDF File

Overview

August , 2011, REV1.
0 BCT3228 preliminary 8 Channel LED Driver (Common-Anode & Common-Cathode) Low Dropout Current Source & Current Sink General Description The BCT3228 is a high performance 8 channel white LED driver.
The BCT3228 uses two internal resistor to set the bias current for four LEDs.
The BCT3228'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 BCT3228 requires only a 50mV dropout voltage at a 20mA load on each output to match the LED brightness.
By using two SEL pin, the BCT3228 can support to drive 8 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 set by u...

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