UL23EAL-SH2-R datasheet(11/13 Pages) UTC

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UL23EAL-SH2-R Datasheet(PDF) 11 Page - Unisonic Technologies

Part #	UL23EAL-SH2-R

Description	HIGH ACCURACY LINEAR CONSTANT CURRENT LED DRIVER

PDF	13 Pages

Scroll/Zoom	100%

Manufacturer	UTC [Unisonic Technologies]

Direct Link	http://www.utc-ic.com

Logo

11 / 13 page

UL23EA

Preliminary

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

11 of 13

www.unisonic.com.tw

QW-R125-072.c



MULTIPLE IC PARALLEL SCHEMES

UL23EA support multiple IC parallel schemes, High PF of adjust brightness application as shown in the figure .If the

output power is too large that the IC over temperature, Multiple IC parallel schemes can be adopted.

Typical Applications：RREXT1=RREXT3=RREXT5=90Ω，RREXT2=RREXT4=RREXT6=10Ω，

0.3S < Switching Period < 3S；

Open the switch for the 1st time，IOUT=90mA；

Open the switch for the 2nd time，IOUT=45mA；

Open the switch for the 3rd time，IOUT=9mA；

The dimming ratio is 100%，50%，10%

When the switching period > 3S，System reset.

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