Dot Matrix LED Unit for Outdoor Use LT1447M(Lamp Type)
s
Features
隆No.
of dots : 16!16dots
隆Outline
dimensions : 144!144mm
隆Dot
size : 酶7.5mm
隆Dot
pitch : 9.0mm
隆Radiation
color : Yellow-green+Red(High-luminosity)dichromatic type
隆Driving
method : 1/8 duty dynamic drive
LT1447M
s
Absolute Maximum Ratings
Parameter
Supply voltage for IC
Supply voltage for LED
Input voltage
Turn-on time
Operating temperature
Storage temperature
Power dissipation
Symbol
V
CC
V
LED
V
I
t
ON
T
opr
T
stg
P
Rating
-0.3 to +6.0
-0.3 to +5.5
-0.3 to V
CC
+0.3
1
-10 to +45
-25 to +85
35
(Ta=25藲C)
Unit
V
V
V
ms
藲C
藲C
W
s
Electrical Characteristics
Parameter
Supply voltage for IC
Supply voltage for LED
IC current dissipation
LED current dissipation
*1
(V
CC
=5V,V
LED
=5V,Ta=25藲C)
s
Optical Characteristics
Parameter
Symbol2
2胃
1
/
2
Viewing angle
Red
Peak emission wavelength
位p
Yellow-green
(V
CC
=5V,V
LED
=5V,Ta=25藲C)
TYP
40
660
565
Unit
藲
nm
Symbol
MIN. TYP. MAX. Unit
V
5.25
5.0
V
CC
4.75
V
5.25
5.0
4.5
V
LED
mA
350
270
------
I
CC
A
6.0
5.0
------
I
LED
V
------
------
3.5
V
IH
Input voltage
V
1.5
------
------
V
IL
碌A
0.1
------
------
I
IH
Input current
mA
0.12
------
------
I
IL
MH
Z
3.0
------
------
f
CLK
Clock frequency
------
200
125
f
FR
H
Z
Frame frequency
*1 Under the condition that dichromatic all dots are lit.
s
Timing Chart
tsu
CLOCK
R&G
DATA
R&G
DATA out
LATCH
1/f
OSC
Internal
ENABLE
R&G
ENABLE
ADDRESS
(A0 to A2)
ON
OFF
td(E-L)
td(E-L)
td(L-E)
s
Luminance
Luminance is classified into 2 ranks shown below.
(V
CC
=5V,V
LED
=5V,Ta=25藲C)
th
t
WCLK
Radiation color
Red
Yellow-green
Rank
1
600
750
2
800
1 000
V
D
(n+1) data
V
D
(n+2) data
Unit
cd/m
2
tWL
tdD
td(C-L)
td(L-C)
ON
OFF
data ON
ON
s
Terminal Functions
Symbol
V
LED
Power supply Vcc
(CN1) GND1
GND2
A0 to A2
Connector
Function
Supply voltage for LED(+5V)
Supply voltage for IC(+5V)
Ground for IC
Ground for LED
Address specification signal for column driver
Controls ON/OFF of red LED
RENABLE (H: LED OFF)
Serial data input for red(H=ON, L=OFF)
RDATA
Shift from up to down in the unit
H
D16
/H
D31
/H
D0
/H
D15
Serial data input for yellow-green(H=ON, L=OFF)
GDATA
Shift from up to down in the unit
Input signal
H
D16
/H
D31
/H
D0
/H
D15
(CN2)
Latch signal of display data H: Serial data is converted
LATCH
to parallel data. L: Contents are latched.
Controls ON/OFF of yellow-green LED
GENABLE
(H: LED OFF)
CLOCK
Clock signal for data transmission in the shift-
register.(L/H: serial data is shifted.)
V
D
(n) data ON
V
D(
n)
V
D
(n+1)
td(A-E)
t
WENA
V
D(
n+1)
td(L-A)
s
Block Diagram
Luminance adjustment circuit
Input/output circuit
VR1
VR2
473
OSC
MONO-MULTI
331
HC367
HC123
IN
A0
A1
A2
RENABLE
RDATA
GDATA
LATCH
GENABLE
CLOCK
OUT
A0
A1
A2
RENABLE
RDATA
GDATA
LATCH
GENABLE
CLOCK
3 TO 8 DECODER
PNP DRIVER
16BIT
SHIFT-REGISTER
LATCH AND DRIVER
16BIT
SHIFT-REGISTER
LATCH AND DRIVER
16BIT
SHIFT-REGISTER
LATCH AND DRIVER
Ground for signal (Connected to ground for IC)
GND1
A0 to A2 Buffered input signal
RENABLE Buffered input signal
Input signal generated through 32-bit shift
RDATA
register
Output signal
GDATA
Input signal generated through 32-bit shift register
(CN3)
LATCH
Buffered input signal
GENABLE Buffered input signal
Buffered input signal
CLOCK
GND1
Ground for signal (Connected to ground for IC)
Each signal is used as input singal for next unit.
* As for the terminal number, refer to the outline dimensions.
(Notice)
V
D0
H
D16
16!16 DOT
LED
H
D31
H
D16
V
D15
H
D0
H
D0
DICHROMATIC
MATRIX
16BIT
SHIFT-REGISTER
LATCH AND DRIVER
H
D31
H
D15
隆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)
隆Data
for sharp's optoelectronic/power device is provided for internet.(Address http://www.sharp.co.jp/ecg/)
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