Dot Matrix LED Unit for Outdoor Use LT1540M(Lamp Type)
s
Features
隆No.
of dots : 16!16dots
隆Outline
dimensions : 240!240mm
隆Dot
size : 13.0!13.0mm
隆Dot
pitch : 14.9mm
隆Radiation
color : Yellow-green+Red(High-luminosity)dichromatic type
隆Driving
method : 1/8 duty dynamic drive
LT1540M
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 +8.5
-0.3 to Vcc+0.3
1
-20 to +45
-25 to +100
58
(Ta=25藲C)
s
Electrical Characteristics
Parameter
Supply voltage for IC
Supply voltage for LED
IC current dissipation
LED current dissipation
*1
(V
CC
=5V,V
LED
=8V,Ta=25藲C)
Unit
V
V
V
ms
藲C
藲C
W
s
Optical Characteristics
Parameter
Symbol
Viewing angle
2胃
1
/
2
Red
Peak emission wavelength
位p
Yellow-green
(Vcc=5V,V
LED
=8V,Ta=25藲C)
TYP.
50
660
565
Unit
藲
nm
Symbol
MIN. TYP. MAX. Unit
5.25
V
4.75
5.0
V
CC
8.25
V
7.5
8.0
V
LED
------
500
mA
200
I
CC
------
7.0
I
LED
A
5.5
------
------
V
IH
3.5
V
Input voltage
------
------
V
IL
1.5
V
------
------
碌A(chǔ)
I
IH
0.1
Input current
------
------
I
IL
0.12
mA
------
------
Clock frequency
10.0 MHz
f
CLK
Frame frequency
f
FR
250
400 3 000 Hz
*1 Under the condition that dichromatic all dots are lit.
s
Timing Chart
t
SU
th
t
WCLK
CLOCK
s
Luminance
Luminance is classified into 2 ranks shown below.
(Vcc=5V,V
LED
=8V,Ta=25藲C)
RDATA
GDATA
RDATA out
GDATA out
V
D
(n+1) data
td(C-L)
td(L-C)
V
D
(n+2) data
Radiation color
Red
Yellow-green
Rank
1
1 200
750
2
1 600
1 000
td
D
t
WL
Unit
cd/m
2
LATCH
t=1/fosc
Internal
ENABLE
RENABLE
GENABLE
ON
ON
ON
V
D
(n) data ON
td(E-A)
ON
OFF ON
ON
ON
OFF
V
D
(n+1) data ON
td(A-E)
s
Terminal Functions
Function
Supply voltage for LED (+8V)
Power
Supply voltage for IC (+5V)
supply
Ground for IC
(CN1)
Ground for LED
Address specification signal for column driver
Serial data input for each color(H:ON, L:OFF)
RDATA
Shift from up to down in the unit
GDATA
H
D16
隆H
D31
隆H
D0
隆H
D15
Latch signal of display data.H: Serial data is
Input LATCH
converted to parallel data. L: Contents are latched.
signal
LATCH signal is set up after switching address(A0 to A2)
(CN2)
RENABLE Controls ON/OFF of each color of LED.
GENABLE (H: LED OFF)
Clock signal for data transmission in the shift-register.
CLOCK
(L隆H: serial data is shifted.)
Ground for signal. (Connected to ground for IC)
GND1
A0 to A3 Buffered input signal
RDATA
Input signal generated through 32-bit shift
GDATA register
Output LATCH
Buffered input signal
signal
RENABLE
(CN3)
Buffered input signal
GENABLE
CLOCK
Buffered input signal
Ground for signal. (Connected to ground for IC)
GND1
Each signal is used as input signal for next unit.
* As for the terminal number, refer to the outline dimensions.
Connector
(Notice)
t
WKNA
ADDRESS
(A0 to A2)
V
D
(n)
td(A-L)
V
D
(n+1)
Symbol
V
LED
V
CC
GND1
GND2
A0 to A2
s
Block Diagram
Input/output circuit
Luminance adjustment circuit
473
331
HC367
OSC
GADJ
RADJ
MONO-MULTI
OUT
A0
A1
A2
RENABLE
RDATA
GDATA
LATCH
GENABLE
CLOCK
GND1
IN
A0
A1
A2
RENABLE
RDATA
GDATA
LATCH
GENABLE
CLOCK
GND1
3 to 8 DECODER
GATE
PNP DRIVER
H
D16
32 BIT SHIFT REGISTER/LATCH/DRIVER
H
D16
32 BIT SHIFT REGISTER/LATCH/DRIVER
32 BIT SHIFT REGISTER/LATCH/DRIVER
16!16 Dot
H
D31
H
D0
H
D31
H
D0
matrix LED
H
D15
H
D15
SELECTOR
devices
catalogs, data books, etc. Contact SHARP
70
(Internet)
隆Data
forshown inoptoelectronic/power device is provided for in order to obtain the latest device specification sheets before using any SHARP device.
sharp's
internet.(Address http://www.sharp.co.jp/ecg/)
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
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