Special three-channel LED driver control circuit
LED
TM1804
TM1804LED(),MCU 、 、LED ,VDD5V。 MCU、 。、。
CMOS 24V VDD5V VDD,6V~24V ,256,1024 :RC, , PWM256,400Hz 30/...
Description
LED
TM1804
TM1804LED(),MCU 、 、LED ,VDD5V。 MCU、 。、。
CMOS 24V VDD5V VDD,6V~24V ,256,1024 :RC, , PWM256,400Hz 30/s,512,1024 400Kbps800Kbps :SOP8、DIP8
:、、、、。
DC R1
DC R2
DC R3
DC R1
DC R2
DC R3
DI VCC GND VCC
RI
OUTR DIN SET
OUTG
OUTB DO VDD GND 104 DO
RO R D1 DC
OUTR DIN SET
OUTG
OUTB DO VDD GND 104 DO NEXT R D1 DC
TM1804
IC1
TM1804
ICn
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V1.4
Free Datasheet http://www.0PDF.com
LED
TM1804
DIN SET DO
VDD
VDD
D W 5V
PWM OSC
OUTR OUTG OUTB
GND
GND
OUTR OUTG OUTB GND
1 2 3 4
8
VDD SET DIN DO
(TO P VIE W)
7 6 5
TM1 804
VDD VDD VDD OUTn
DIN SET GND
DO
GND
GND
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V1.4
Free Datasheet http://www.0PDF.com
LED
DIN DO SET OUTR OUTG OUTB VDD GND
TM1804
6 5 7 1 2 3 8 4
I/O
I O O O O
VDD:;: Red Blue PWM PWM Green PWM DC 5V±10%,5V,
,,, ,, ESD , 。
(2) (1)
VDD VIN IOUT VOUT FCLK Topr Tstg ESD (DC) (HBM) (MM) DIN,SET OUTR,OUTG,OUTB OUTR,OUTG,OUTB DIN
-0.5 ~+7.0 -0.5~VDD+0.5 60 -0.5~+30.0 800 -40~+85 -55~+150 2000 200
V V mA V KHZ ℃ ℃ V V
(1),,,。 ,。 (2)。
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V1.4
Free Datasheet http://www.0PDF.com
LED
(-40℃~+85℃,GND=0V)
TM1804
4.5 3.8 GND
TM1804
5.0
6.5 24.0 VDD 1.5
V V V V mA mA mA ℃ ℃
: :VCC= DC4.5V~6.5V VCC VO OUT VIH VIL IOH VCC=5.0V,SDO=4.8V IOL VCC=5.0V,SDO=0.5V OUTR, OUTG, OUTB = IOLC RGB 0.5V TA TJ
1 10 40 -40 -40 45 +85 +125
( VCC=4.5V~6.5V -40℃~+85℃, VCC=5V TA=+25℃) TM1804
VDD-0.5 -1 1
VDD 0.5 1
V V uA mA ...
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