IK402U Datasheet, PDF (1/7 Pages) IK Semicon Co., Ltd – High-stability output current

TECHNICAL DATA
CONSTANT CURRENT LINEAR LED DRIVER
IK402U
DESCRIPTION
IK402U is a high-stable current source IC designed to
be used as a constant current LED driver. Application of a
constant current source provides continuous brightness of
LED light and long LED life time. Moreover, a constant
current source provides an over-temperature protection to
LED.
FEATURE
 High-stability output current
 Low dropout voltage
 Easy adjustable output current
 Negative thermal coefficient of output current
 Small overall dimensions, possible chip mount in
a single package with LED
 Low cost, no external elements, simple use
 LED drive current of 22 mA
 Supply voltage up to 42 V
 Easy paralleling of drivers to increase current
 Low voltage overhead of 1.2 V
 High current accuracy at supply voltage variation
 No EMI
 ESD Rating: Human Body Model 2000V
 Reduced output current at higher temperatures –
negative thermal coefficient of - 0.1 %/K
APPLICATION
 Channel letters for advertising, LED strips for
decorative lighting
 Aircraft, train, ship illumination
 Retrofits for general lighting, white goods like
refrigerator lighting
 Medical lighting
 Automotive applications like CHMSL and rear
combination lights
SOT-23-6
1
November 2014, Rev. 01