ULD0611G-SH2-R datasheet(4/6 Pages) UTC

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ULD0611G-SH2-R датащи(PDF) 4 Page - Unisonic Technologies

4 / 6 page

ULD0611

Preliminary

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

4 of 6

www.unisonic.com.tw

QW-R125-045.b



FUNCTIONAL DESCRIPTION

UTC ULD0611 is constant current drive which integrates the functional module such as LED constant current

control and OUT port high voltage drive. OUT1 port minimum input voltage is 6V

（I

OUT=20mA

）and it can reach

output current 10mA ~ 60mA by external REXT resistor. Built-in LED constant current drive maintains LED current a

high precision without impact of ambient temperature. The chip can achieve high efficiency and high power factor by

opening four switches one by one.

The chip output current is adjustable by REXT resistor IOUT=VREXT/R. Output current generated by four switches

opening one by one is shown below:

IOUT1=0.57V/R

IOUT2=0.73V/R

IOUT3=0.87V/R

IOUT4=0.95V/R

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