3-channel LED driver control dedicated circuit
LED
TM1803
TM1803LED(),MCU 、 、LED 。 MCU、 。、。
CMOS 24V 5VVDDGND5V,6V~24V ,256,1024 :RC, , PWM256,400Hz 30/s,512...
Description
LED
TM1803
TM1803LED(),MCU 、 、LED 。 MCU、 。、。
CMOS 24V 5VVDDGND5V,6V~24V ,256,1024 :RC, , PWM256,400Hz 30/s,512 400Kbps :SOP8、DIP8
:、、、、。
DC R1
DC R2
DC R3
DC R1
DC R2
DC R3
DI VCC GND VCC
RI
OUTR DIN NC
OUTG
OUTB DO VDD GND 104 DO
RO R D1 DC
D W 5 .1 V
OUTR DIN NC
OUTG
OUTB DO VDD GND 104
D W 5 .1 V
DO
NEXT R D1 DC
TM1803
IC1
TM1803
ICn
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V1.3
LED
DIN NC DO
TM1803
VDD VDD
PWM
OUTR OUTG OUTB
GND
GND
OSC
OUTR OUTG OUTB GND
1 2 3 4
8
VDD NC DIN DO
(TO P VIE W)
7 6 5
TM1 803
VDD VDD VDD OUTn
DIN
DO
GND
GND
GND
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V1.3
LED
DIN DO NC OUTR OUTG OUTB VDD GND
TM1803
6 5 7 1 2 3 8 4
I/O
I O O O O
Red Green Blue PWM PWM PWM
DC 5V±10%
,,, ,, 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~+30.0 400 -40~+85 -55~+150 2000 200
V V mA V KHZ ℃ ℃ V V
(1),,,。 ,。 (2)。
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V1.3
LED
(-40℃~+85℃,GND=0V)
TM1803
4.5 3.8 GND
TM1803
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℃) TM1803
VDD-0.5 -1 1
VDD 0.5 1
V V uA mA mA uA ms mA ℃/W mW ohm
VOH VOL IIN IDD IOLC IOLKG TPWM IDDdyn Rth(j-a) PD RON
VDD RGB OUT RGB
IOH=-6mA:DO IOL=10mA:DO...
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