BCT3220 - 4-Channel Common-Anode LED Driver

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%.

Features

Low 50mV Dropout at 20mA.
20mA full scale current.
1.5% LED Current Matching (TYP).
One Wire interface for 8-Step Brightness Control.
2.7V to 5.5V Supply Voltage Range.
Thermal Shutdown Protection.
Low Input Noise and EMI.
RoHS Compliant and 100% Lead (Pb)-Free, DFN2x2-8L Package.

BROADCHIP

📥 Download Datasheet

Datasheet Details

Part number	BCT3220
Manufacturer	BROADCHIP
File Size	296.53 KB
Description	4-Channel Common-Anode LED Driver
Datasheet	BCT3220 Datasheet
Additional preview pages of the BCT3220 datasheet.

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Full PDF Text Transcription

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BCT3220 4 Channel Common-Anode LED Driver With Digital Pulse Brightness Control BCT3220 4 Channel Common-Anode LED Driver with Digital Pulse Brightness Control 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. Users can easily configure the LED current from 2.5mA to 20mA by a serial pulse.

Published: Mar 12, 2019 |