Datasheet > SCT2027

SCT2027

更新时间： 2024-02-10 23:47:02

品牌	Logo	应用领域
其他 - ETC		驱动器
页数	文件大小	规格书
18页	402K
描述
16-bit constant-current led driver with modeless error detection

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

SCT2027 数据手册

StarChips

Technology

SCT2027 V01_03; Jun/13

16-bit Constant-Current LED Driver with Modeless^TMError Detection

Product Description

The SCT2027 is a serialꢀinterfaced 16ꢀbit constantꢀcurrent sinker with error detection designed for LED

displays and LED lighting applications. In applications, an external resistor is used to adjust the fullꢀscale

output current from 5mA up to 90mA. The serial data are shifted into 16ꢀbit shift register by clock signal.

Input data appear at the SDO output 16 clock cycles later to allow cascading of multiple SCT2027s. The

latchꢀenable input, LA/, loads the 16 bits data of shift register into a 16ꢀbit latch to determine which LEDs

are on and off. The output enable input, OE/ gates all 16 outputs on and off, and is fast enough to be

used as PWM input for the LED intensity control.

The SCT2027 combines the SCT2024/6 with Modeless^TMtechnique to detect openꢀload and

shortedꢀload errors while driving the LEDs without mode switching^*. With the pinꢀtoꢀpin compatible

design, all the LED display or lighting systems can be upgraded to perform the onꢀtheꢀfly errorꢀdetection

functions simply by replacing all the SCT2024/6s with SCT2027s directly. Also, by the Modeless^TM

technique, the software and hardware works well without reworks between systems of the SCT2024/6

and SCT2027.

During operations, the SCT2027 takes only 200ns to generate error status codes after the rising edge of

LA/. The error status codes saved in the shift register can be shifted out via SDO bitꢀbyꢀbit along with

CLK, at the same time the new serial data can be shifted into SCT2027 via SDI. By comparing the

display data with error status codes, the system control unit can read the error status to determine

whether or not the LEDs are properly lit. If the input display signals are inconsistent with the

corresponding output status code, the corresponding LEDs are determined to have been stuck open or

short.

Since the high clock frequency can reach up to 25MHz, the SCT2027 satisfies the system requirements

of high volume data transmission to control the LED display. The SCT2027 also guarantees each output

endures up to 7V voltage stress, thus each output can drive multiple LEDs. The Modeless^TMSCT2027

combines the error detection mechanism with display signals; hence the control unit does not need to

switch between different modes, and therefore both the hardware costs and the control complexity can

be reduced. In addition, the LED error status codes can be read in real time, and hence the fault status

of the faulty LEDs can be discovered sooner.

*Starchips’ patent protection.

12 3 4 5 6 7...18

中文翻译

下载PDF

与SCT2027相关器件

型号	品牌	获取价格	描述	数据表
SCT205K122D3B23F	CDE	获取价格	CAPACITOR, FILM/FOIL, 1200V, 2uF, CHASSIS MOUNT, ROHS COMPLIANT
SCT205K122D3B25-F	CDE	获取价格	Snubber Film Capacitor
SCT205K122D3S25F	CDE	获取价格	CAPACITOR, FILM/FOIL, 1200V, 2uF, CHASSIS MOUNT, ROHS COMPLIANT
SCT205K122D3S28F	CDE	获取价格	CAPACITOR, FILM/FOIL, 1200V, 2uF, CHASSIS MOUNT, ROHS COMPLIANT
SCT205K162D3B25-F	CDE	获取价格	Snubber Film Capacitor
SCT205K162D3S28F	CDE	获取价格	CAPACITOR, FILM/FOIL, 1600V, 2uF, CHASSIS MOUNT, ROHS COMPLIANT
SCT205K162D3SL23F	CDE	获取价格	CAPACITOR, FILM/FOIL, 1600V, 2uF, CHASSIS MOUNT, ROHS COMPLIANT
SCT205K162D3SL25F	CDE	获取价格	CAPACITOR, FILM/FOIL, 1600V, 2uF, CHASSIS MOUNT, ROHS COMPLIANT
SCT205K601A3B23F	CDE	获取价格	CAPACITOR, FILM/FOIL, 600V, 2uF, CHASSIS MOUNT, ROHS COMPLIANT
SCT205K601A3B25-F	CDE	获取价格	Snubber Film Capacitor

与SCT2027相关文章

MBRS340T3G手册解读：参数说明、产品特性及应用
2024-06-28

8
PMOS管背靠背连接：串联还是并联？
2024-06-28

7
高压电解电容的分类与选型策略
2024-06-28

8
数码管：基本概念、分类、技术发展及市场趋势
2024-06-27

14

产品中心

服务支持

精选活动

关于我们

帮助中心

SCT2027

SCT2027 数据手册

与SCT2027相关器件

与SCT2027相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

SCT2027

SCT2027 数据手册

与SCT2027相关器件

与SCT2027相关文章

您还可以找

您在本页遇到什么问题？