HIGH ACCURACY LINEAR CONSTANT CURRENT LED DRIVER

DESCRIPTION

The UL23EB is a linear constant current IC that supports the
adjust brightness or color temperature in 3 grades. The application
scheme is simple and the cost is low.
In the dimming application of UL23EB, User can change the size
of the output current by turn on/off the power switch, that adjust
brightness of LED lights. Changing the REXT external resistance
Adjustment of brightness ratio.
In the adjust color temperature application of UL23EB, User can
change the state of the two output ports by turn on/off the power
switch, that adjust the color temperature through the light of two
different colored LED lights. Changing the REXT external resistance
can adjustment the output power.

FEATURES

* No stroboscopic
* Input voltage 220VAC,110VAC
* Adjustable output current, max 60mA
* Inter-chip current deviation < ±4%
* Application system no EMI problems
* Over temperature Reduced Current
* Supports the adjust brightness in 3 grades
* Supports the adjust color temperature in 3 grades
* Effectively switching time from 0.3S ~ 3S