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BCT3221 4-Channel LED Driver

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Description

February, 2009, REV2.01 BCT3221 4 Channel LED Driver (Common-Anode & Common-Cathode) Low Dropout Current Source & Current Sink General .
The BCT3221 is a high performance white LED driver.

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Datasheet Specifications

Part number
BCT3221
Manufacturer
BROADCHIP
File Size
270.93 KB
Datasheet
BCT3221-BROADCHIP.pdf
Description
4-Channel LED Driver

Features

* Drive Common Anode or Common Cathode LEDs
* Low 50mV Dropout at 20mA
* 20mA full scale current

Applications

* significantly improved efficiency. The BCT3221 requires only a 50mV dropout voltage at a 20mA load on each output to match the LED brightness. By using one SEL pin, the BCT3221 can support to drive 4 parallel Co-Anode or Co-Cathode white LEDs and regulates a constant current for uniform intensity.

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