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TM1803 Datasheet(PDF) 8 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) 8 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
3、使用TM1803扩流（图中无SET脚）
在实际应用中，经常需要驱动大功率或更多的LED灯，为了得到更大的驱动电流，可以按如下方
法进行扩流使用，根据LED灯的功率选择适合的PNP三极管或P沟道MOS管（场效应管
）。
4
3
2
1
VDD
GND
NC
DIN
DO
OUTB
OUTG
OUTR
1
2
3
4
5
6
7
8
TM1803
R*
R*
104
C1
U1
VLED
VLED
VLED
J1
R
VLED
DIN
DO
DW
5.1V
其他两种扩流接法：
104
LED
VLED
级级级级
级级级级
104
R
VLED
GND
级级级级
级级级级
104
G
GND
B
100
100
100
VCC
GND
NC
DIN
DO
OUTB
OUTG
OUTR
1
2
3
4
5
6
7
8
TM1803
VCC
GND
NC
DIN
DO
OUTB
OUTG
OUTR
1
2
3
4
5
6
7
8
TM1803
VCC
GND
NC
DIN
DO
OUTB
OUTG
OUTR
1
2
3
4
5
6
7
8
TM1803
R*
R*
R*
R*
VLED
R
D
VLED
R
D
VLED
R
D
DW
5.1V
DW
5.1V
DW
5.1V
GND
100
100



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