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IK402U Schematic ( PDF Datasheet ) - IK Semicon

Teilenummer IK402U
Beschreibung CONSTANT CURRENT LINEAR LED DRIVER
Hersteller IK Semicon
Logo IK Semicon Logo 




Gesamt 7 Seiten
IK402U Datasheet, Funktion
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






IK402U Datasheet, Funktion
IK402U
80
70
60
50
40
30
20
0
Output Current vs. Rext Resistor
20 40 60 80 100 120 140 160
Rext Resistor ()
1020
1000
980
960
940
920
900
880
860
0
Current consumption vs. Rext Resistor
20 40 60 80 100 120 140 160
Rext Resistor ()
6
November 2014, Rev. 01

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