SCT2001ASIG Starchips

StarChips Technology SCT2001 V02 01 Sep/08 3-Channel Constant Current Driver Product Description The SCT2001 is designed to drive multiple LEDs in series from a high input voltage rail. The SCT2001 contains three output channels which are regulated to sink constant current for driving LEDs of large range V variations. F In the field of LEDs driving applications, users can simply adjust the output current from 10 mA to 45 mA through an external resistor R to control the light intensity of ADJ LEDs. The SCT2001 guarantees to endure maximum DC 24V at each output port. Features Three constant-current outputs rate at 24V Constant current range:10 45mA Wide operating supply input: 5 15V 2%(typ) current matching between outputs 4%(typ) current matching between ICs Smart dimming control via ADJ pin Low drop-out output 0.3V 20mA Excellent current regulation to load, supply voltage and temperature All output current are adjusted through one external resistor Hysteresis input for external resistor Built-in power on reset and thermal protection function Package: Small 2mmx2mm DFN and SOT-236 Applications: Mini light bar, LED backlight, LED lamp Pin Configurations ADJ 1 6 OUT0 VDD 1 6 OUT2 2 5 2 5 GND OUT1 ADJ OUT1 VDD 3 4 OUT2 OUT0 3 4 GND SOT-236 DFN6 Page 1 of 12 3-Channel Constant Current Driver SCT2001 Block Diagram OUT0 OUT1 OUT2 Current ADJ Output Driver Regulator SCT2001 Terminal Description For SOT-236 Pin No. Pin Name Function 1 ADJ Input terminal used to set up all output current 2 GND Ground terminal 3 VDD Supply voltage terminal 4 OUT2 Output terminal 2 5 OUT1 Output terminal 1 6 OUT0 Output terminal 0 For DFN6 Pin No. Pin Name Function 1 VDD Supply voltage terminal 2 ADJ Input terminal used to set up all output current 3 OUT0 Output terminal 0 4 GND Ground terminal 5 OUT1 Output terminal 1 6 OUT2 Output terminal 2 Page 2 of 12