參數(shù)資料
型號： LT1474M
廠商： Sharp Corporation
英文描述： Dot Matrix LED Unit for Outdoor Use (Lamp Type,Water-proof Type)
中文描述： 點陣LED單元（燈型，防水型戶外使用）
文件頁數(shù)： 1/2頁
文件大?。?/td> 588K
代理商： LT1474M
(Notice)
In the absence of confirmation by device specification sheets, SHARP takes no responsibility for any defects that may occur in equipment using any SHARP
devices shown in catalogs, data books, etc. Contact SHARP in order to obtain the latest device specification sheets before using any SHARP device.
(Internet)
Data for sharp's optoelectronic/power device is provided for internet.(Address http://www.sharp.co.jp/ecg/)
I
Electrical Characteristics
Parameter
I
Block Diagram
I
Timing Chart
(Ta=25C)
Unit
*1 V
I
<Vcc at Vcc
≤
5
Supply voltage for IC
Supply voltage for LED
Input voltage
*1
Turn-on time
Operating temperature
Storage temperature
Power dissipation
Parameter
V
CC
V
LED
V
1
t
ON
T
opr
T
stg
P
Symbol
-0.3 to +6.0
-0.3 to +9.5
-0.3 to V
CC
+0.3
1
-20 to +75
-25 to +100
176
Rating
V
V
V
ms
C
C
W
4.75
8.75
------
------
3.5
------
------
------
------
5.0
9.0
500
12
------
------
------
------
------
5.25
9.25
750
18
------
1.5
0.1
0.12
10
V
V
mA
A
V
V
μ
A
mA
MH
Z
Symbol
L
CC
V
LED
I
CC
I
LED
V
IH
V
IL
I
IH
I
IL
f
CLK
MIN.
TYP. MAX.
Unit
*1 Under the condition that dichromatic all dots are lit.
(V
CC
=5V,V
LED
=9V,Ta=25C)
Supply voltage for IC
Supply voltage for LED
IC current dissipation
*1
LED current dissipation
*1
Input voltage
Input current
Clock frequency
Parameter
Red
Yellow-green
Red
Yellow-green
1 900
1 500
60/70
660
565
cd/m
2
Symbol
TYP.
Unit
Lv
2
θ
1
/
2
nm
λ
p
Luminance
Viewing angle[Horizontal(Red/Yellow-green)]
Peak emission wavelength
(V
CC
=5V,V
LED
=9V,Ta=25C)
V
D
(n+2) data
td
D
tsu
th
V
D
(n+1) data
td(C-L)
td(L-C)
t WL
t
WCLK
CLOCK
GDATA
GDATA out
GENABLE
RENABLE
(A0 to A3)
ADDRESS
td(E-A)
td(A-E)
td(A-L)
t
WENA
V
D(
n+1)
V
D(
n)
V
D
(n) data ON
V
D
(n+1) data ON
LATCH
173
I
Absolute Maximum Ratings
Dot Matrix LED Unit for Outdoor Use LT1474M(Lamp Type,Water-proof Type)
I
Features
No. of dots : 16
16dots
Outline dimensions : 320
320mm
Dot size : 18
18mm(Using oval lamp)
Dot pitch : 20.0mm
Radiation color : Yellow-green+Red(High-luminosity)dichromatic type
Driving method : 1/16 duty dynamic drive
I
Optical Characteristics
I
Terminal Functions
V
LED
V
CC
GND1
GND2
A0 to A3
RDATA
GDATA
LATCH
RENABLE
GENABLE
CLOCK
GND1
A0 to A3
RDATA
GDATA
LATCH
RENABLE
GENABLE
CLOCK
GND1
Supply voltage for LED(+9V)
Supply voltage for IC(+5V)
Ground for IC
Ground for LED
Address specification signal for row driver
Serial data input for red
(H=ON, L=OFF)
Serial data input for yellow-green
(H=ON, L=OFF)
Latch signal of display data
Controls ON/OFF of LED
(H: LED OFF)
Clock signal for data transmission in the shift-
register.(L
/
H: serial data is shifted.)
Ground for signal
Buffered input signal
Input signal generated through 16-bit shift
register or buffer
Input signal generated through 16-bit shift
register or buffer
Buffered input signal
Buffered input signal
Buffered input signal
Ground for signal(Connected to ground for IC)
Symbol
Function
Each signal is used as input signal for next unit.
* As for the terminal number, refer to the outline dimensions.
Connector
Power
supply
(CN1)
Input
signal
(CN2)
Output
signal
(CN3)
PNP DRIVER
2TO 4DECODER
RADJ
GATE
Luminance adjustment circuit
Luminance adjustment circuit
Luminance adjustment circuit
RADJ
Luminance adjustment circuit
8BIT SHIFT-REGISTER
LATCH AND DRIVER
8BIT SHIFT-REGISTER
LATCH AND DRIVER
8BIT SHIFT-REGISTER
LATCH AND DRIVER
LATCH AND DRIVER
LATCH AND DRIVER
GADJ
GADJ
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
D
16
16 DOT
DICHROMATIC
LEDMATRIX
IN
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
8BIT SHIFT-REGISTER
LATCH AND DRIVER
8BIT SHIFT-REGISTER
8BIT SHIFT-REGISTER
LATCH AND DRIVER
LATCH AND DRIVER
LATCH AND DRIVER
LATCH AND DRIVER
2
2
2
2
2
2
2
2
OUT
A0
A1
A2
A3
RDATA
G CLOCK
REGND1
NC
A0
A1
A2
A3
RDATA
NC
LT1474M
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