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SC6803Q Datasheet(PDF) 2 Page - SHENZHEN FUMAN ELECTRONICS CO., LTD.

Part # SC6803Q
Description  LED driver IC
Download  9 Pages
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Manufacturer  FUMAN [SHENZHEN FUMAN ELECTRONICS CO., LTD.]
Direct Link  http://www.superchip.cn
Logo FUMAN - SHENZHEN FUMAN ELECTRONICS CO., LTD.

SC6803Q Datasheet(HTML) 2 Page - SHENZHEN FUMAN ELECTRONICS CO., LTD.

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深圳市富满电子集团股份有限公司
SHEN ZHEN FINE MAD ELECTRONICS GROUP CO., LTD.
SC6803Q(文件编号:S&CICS&CIC1449)
LED 驱动 IC
www.superchip.cn
2 页共 9 页
Version 1.0
管脚功能描述
管脚名称
功能说明
SDI
串行数据输入。内置上拉
CKI
串行数据的时钟输入,内置上拉
Q1、Q2、Q3
输出端,
Q1 恒定电流 18mA,Q2、Q3 电流恒定 17mA
SDO
串行数据级联输出,经内部强驱动输出
CKO
串行时钟级联输出,经内部锁相再生和强驱动输出
VCC
电源
,高压下必须串接一个降压电阻,同时并接一个退耦电容到地,
LDO 的电源电压,范围在 4.5~5.5V
GND
(芯片底盘)
功能框图
基本时序
先移入至少
32BIT 的‘0’作为起始帧,再移入各数据帧,数据帧高位先移入,在 CKI 上升沿打入数据;
第一个数据帧是对应距移入端最近
LED 灯,其格式包括 1 比特起始位‘1’+三组 5 比特的灰度值;
灰度数据传输完毕后
,还要补发对应芯片数的附加脉冲(比如级联 1024 个芯片,需要额外发送 1024 个
CKI);依次移入各点数据后,加对应点数的附加脉冲,新数据即开始生效;
每颗芯片的数据帧格式如下图:


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