LT1474M [SHARP]
Dot Matrix LED Unit for Outdoor Use (Lamp Type,Water-proof Type); LED点阵单元的户外使用（灯泡型，防水型）
| 型号： | LT1474M |
| 厂家： | 
SHARP ELECTRIONIC COMPONENTS |
| 描述： | Dot Matrix LED Unit for Outdoor Use (Lamp Type,Water-proof Type) |
| 文件： | 总2页 (文件大小：590K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Dot Matrix LED Unit for Outdoor Use LT1474M(Lamp Type,Water-proof Type)
■ 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
LT1474M
■ Absolute Maximum Ratings
■ Electrical Characteristics
(Ta=25˚C)
(VCC=5V,VLED=9V,Ta=25˚C)
Parameter
Parameter
Supply voltage for IC
Supply voltage for LED
Input voltage*1
Symbol
VCC
VLED
V1
Rating
-0.3 to +6.0
-0.3 to +9.5
-0.3 to VCC+0.3
1
-20 to +75
-25 to +100
176
Unit
V
V
Symbol
MIN. TYP. MAX. Unit
Supply voltage for IC
Supply voltage for LED
IC current dissipation*1
LED current dissipation*1
LCC
VLED
ICC
ILED
VIH
VIL
IIH
4.75
8.75
------
------
3.5
5.0
9.0
500
12
------
------
------
------
------
5.25
9.25
750
18
------
1.5
V
V
mA
A
V
Turn-on time
t
ON
ms
˚C
˚C
W
Operating temperature
Storage temperature
Power dissipation
*1 VI<Vcc at Vcc≤5
Topr
Tstg
P
V
Input voltage
------
------
------
------
V
0.1
0.12
10
µA
mA
MHZ
Input current
IIL
fCLK
Clock frequency
*1 Under the condition that dichromatic all dots are lit.
■ Timing Chart
■ Optical Characteristics
(VCC=5V,VLED=9V,Ta=25˚C)
tsu
th
t WCLK
Parameter
Symbol
TYP.
1 900
1 500
60/70
660
Unit
Red
Yellow-green
CLOCK
2
Luminance
Lv
cd/m
RDATA
GDATA
2θ1/2
λp
Viewing angle[Horizontal(Red/Yellow-green)]
˚
V
D(n+1) data
V
D(n+2) data
RDATA out
GDATA out
Red
Peak emission wavelength
Yellow-green
td(C-L)
td(L-C)
t WL
nm
tdD
565
LATCH
RENABLE
GENABLE
V
D
(n) data ON
V
D
(n+1) data ON
td(A-E)
■ Terminal Functions
td(E-A)
t WENA
VD(n+1)
VD(n)
ADDRESS
(A0 to A3)
Connector
Symbol
VLED
VCC
GND1
GND2
Function
td(A-L)
Supply voltage for LED(+9V)
Supply voltage for IC(+5V)
Ground for IC
Power
supply
(CN1)
■ Block Diagram
IN
OUT
A0
A1
A0
A1
A2
A3
RDATA
GDATA
LATCH
GENABLE
CLOCK
GND1
RENABLE
NC
Ground for LED
A2
A3
RDATA
GDATA
LATCH
GENABLE
CLOCK
GND1
RENABLE
NC
A0 to A3 Address specification signal for row driver
Serial data input for red
(H=ON, L=OFF)
RDATA
2TO 4DECODER
PNP DRIVER
GATE
Serial data input for yellow-green
(H=ON, L=OFF)
GDATA
Input
signal
(CN2)
Luminance adjustment circuit
Luminance adjustment circuit
RADJ
LATCH Latch signal of display data
Controls ON/OFF of LED
RENABLE
GENABLE (H: LED OFF)
RADJ
8BIT SHIFT-REGISTER
LATCH AND DRIVER
8BIT SHIFT-REGISTER
LATCH AND DRIVER
Clock signal for data transmission in the shift-
8BIT SHIFT-REGISTER
LATCH AND DRIVER
8BIT SHIFT-REGISTER
LATCH AND DRIVER
CLOCK
GND1
register.(L/H: serial data is shifted.)
8BIT SHIFT-REGISTER
LATCH AND DRIVER
8BIT SHIFT-REGISTER
LATCH AND DRIVER
Ground for signal
8BIT SHIFT-REGISTER
LATCH AND DRIVER
8BIT SHIFT-REGISTER
LATCH AND DRIVER
A0 to A3 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
RDATA
16✕16 DOT
DICHROMATIC
LEDMATRIX
GDATA
LATCH
Output
signal
(CN3)
8BIT SHIFT-REGISTER
8BIT SHIFT-REGISTER
LATCH AND DRIVER
✕2
✕2
✕2
✕2
✕2
✕2
✕2
✕2
LATCH AND DRIVER
RENABLE
GENABLE
Buffered input signal
8BIT SHIFT-REGISTER
LATCH AND DRIVER
8BIT SHIFT-REGISTER
LATCH AND DRIVER
8BIT SHIFT-REGISTER
LATCH AND DRIVER
8BIT SHIFT-REGISTER
LATCH AND DRIVER
CLOCK Buffered input signal
GND1 Ground for signal(Connected to ground for IC)
Each signal is used as input signal for next unit.
8BIT SHIFT-REGISTER
LATCH AND DRIVER
8BIT SHIFT-REGISTER
LATCH AND DRIVER
GADJ
GADJ
* As for the terminal number, refer to the outline dimensions.
Luminance adjustment circuit
Luminance adjustment circuit
(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/)
17
(60.75)
320
12
18
14
(P19.95✕15=299.25)
HD0
Height Max. 20
HD15
VD0
VD15
Data shift direction
Red LED✕3
Yellow-green LED✕6
Lamp position in a dot(For all 256 pcs.)
139.65
119.7
139.65
119.7
14-ø4.2hole
39.9
39.9
(10)
Pin connection
CN1:(Power supply)
1
2
3
4
5
6
VLED
VLED
VLED
7
8
9
GND1
GND2
GND2
GND2
GND2
GND2
GADJ
GADJ
RADJ
12
1
12
1
CN12
VLED 10
VLED 11
VCC
12
RADJ
CN1
CN3
CN2
CN2:(Input signal)
CN3:Output signal)
1
2
3
4
5
6
7
8
9
A0
A1
A2
A3
RDATA
GDATA
LATCH
GENABLE
CLOCK
1
2
3
4
5
6
7
8
9
A0
A1
A2
A3
RDATA
GDATA
LATCH
GENABLE
CLOCK
10 GND1
11
10 GND1
11
RENABLE
12 NC
RENABLE
12 NC
(5.8)
(1.2)
4-concave(Depth7)
Water-proof ring(3✕3mm)
(230)
LT1474M
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