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TM1803 Datasheet(PDF) 1 Page - Shenzhen Putianhe Technology Co., Ltd

Part # TM1803
Description  Three channel LED drive control special circuit
PDF  11 Pages
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Manufacturer  PTH [Shenzhen Putianhe Technology Co., Ltd]
Direct Link  http://www.szpth.com/
Logo PTH - Shenzhen Putianhe Technology Co., Ltd

TM1803 Datasheet(HTML) 1 Page - Shenzhen Putianhe Technology Co., Ltd

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三通道
三通道
三通道
三通道 LED
LED
LED
LED 驱动控制专用电路
驱动控制专用电路
驱动控制专用电路
驱动控制专用电路
TM1803
TM1803
TM1803
TM1803
www.szpth.com
V1.3
特性描述
特性描述
特性描述
特性描述
TM1803是三通道LED(发光二极管)驱动控制专用电路,内部集成有MCU 数字接口、数据锁
存器、LED 高压驱动等电路。通过外围 MCU控制实现该芯片的单独辉度、级联控制实现户外大屏
的彩色点阵发光控制。本产品性能优良、质量可靠。
功能特点
功能特点
功能特点
功能特点
采用高压功率CMOS工艺
输出端口耐压24V
非5V电压时VDD须串接电阻并对GND接5V稳压管,工作电压支持6V~24V
辉度调节电路,256级辉度可调,低亮度时等效1024级
单线串行级联接口
振荡方式:内置RC振荡并根据数据线上信号进行时钟同步,在接收完本单元的数据后能自
动将后续数据整形后通过数据输出端发送至下级,信号不随级联变远而出现失真或衰减
内置上电复位电路
PWM控制端能够实现256级调节,扫描频率不低于400Hz
能通过一根信号线完成数据的接收与解码
当刷新速率为30帧/s时,级联点数不小于512点
数据发送速度为400Kbps
封装形式:SOP8、DIP8
外部应用框图
外部应用框图
外部应用框图
外部应用框图
适用领域:点光源、护栏管、软灯条、户内、外大屏等。
控制器
TM1803
DIN
OUTR
OUTB
DO
IC1
DC
DC
TM1803
DIN
DO
ICn
DC
OUTG
OUTR
OUTB
DC
DC
DC
OUTG
DI
VDD
GND
VDD
GND
VCC
GND
VCC
DO
DO
NEXT
RI
RO
104
DC
R
D1
R1
R2
R3
R1
R2
R3
NC
NC
DW
5.1V
104
DC
R
D1
DW
5.1V


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