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SCT2168

更新时间： 2024-01-20 00:02:17
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其他 - ETC 驱动
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15页 483K
描述
8-bit serial-in/parallel-out constant current driver

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StarChips  
Technology  
SCT2168 V01_01; May/09  
8-bit Serial-In/Parallel-Out Constant Current Driver  
Product Description  
The SCT2168 serial-interfaced LED driver sinks 8 LED clusters with constant current to  
keep the uniform intensity of LED displays. In applications, an external resistor is used to  
set the full-scale constant output current from 5mA up to 120mA. The SCT2168  
guarantees each output can endure maximum 17V DC voltage stress. The built-in shift  
registers and data latches making the SCT2168 effective solution in driving LED display.  
The output enable function gates all 8 outputs on and off, and is fast enough to be used  
as PWM input for LED intensity control. Since the serial data input rate can be reached  
up to 25MHz, the SCT2168 will satisfy system which needs high volume data  
transmission to control the LED display.  
Features  
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8 constant current sinker with LED power-supply voltage up to 17V  
Constant output current : 5 – 120mA@5V, 3 – 80mA@3.3V  
Excellent current regulation to load, supply voltage and temperature  
±1% Current matching between outputs  
±3% Current matching between ICs  
Fast output current control: Minimum PWM pulse width = 120ns  
All output current are programmed together using a single external resistor  
CMOS Schmitt trigger inputs with clock rate up to 25MHz  
Operating supply voltage range of 3.3V to 5.5V  
Built-in power on reset circuit forces all the outputs off while power on  
Built-in thermal protection function to prevent damage from over current operation  
Gradually 2ns delayed outputs to lower output switching noise  
Package: SOP16, SSOP16,SOP16W  
‹ Applications: LED Displays, Variable Message Signs, LED Traffic Signs  
Selector Guide  
Number of  
Outputs  
Max Output Min PWM Pulse  
Supply  
Voltage (V)  
Part  
Current (mA)  
Width (ns)  
SCT2110  
SCT2167  
SCT2168  
SCT2210  
SCT2026  
SCT2024  
8
8
180  
60  
100  
5
180  
3.3/5  
3.3/5  
5
8
120  
120  
90  
120  
16  
16  
16  
50  
120  
5
60  
180  
3.3/5  
深圳市德凯源科技有限公司 SCT(晶锜科技)一级代理  
地址：深圳市福田区中航路都会电子城2B102A  
http://www.dekay-sz.com  
TEL:0755-82571529/13428925925  
FAX:0755-89374256  
E-mail:dekay_sz@126.com  
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