Dot Matrix LED Unit for Outdoor Use LT1541MN(Lamp Type,Water-proof Type)
s
Features
¡No.
of dots : 16!16dots
¡Outline
dimensions : 240!240mm
¡Dot
size : 13.0!13.0mm(Using oval lamp)
¡Dot
pitch : 14.9mm
¡Radiation
color : Yellow-green+Red(High-luminosity)dichromatic type
¡Driving
method : 1/8 duty dynamic drive
LT1541MN
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
1
t
ON
T
opr
T
stg
P
Rating
-0.3 to +6.0
-0.3 to +8.0
-0.3 to V
CC
+0.3
1
-20 to +75
-25 to +100
59
(Ta=25˚C)
s
Electrical Characteristics
Parameter
Supply voltage for IC
Supply voltage for LED
IC current dissipation
LED current dissipation
*1
Unit
V
V
V
ms
˚C
˚C
W
(V
CC
=5V,V
LED
=7.5V,Ta=25˚C)
s
Optical Characteristics
Horizontal
Red
Peak emission wavelength
Yellow-green
Parameter
Viewing angle
Symbol
2θ
1
/
2
λp
(V
CC
=5V,V
LED
=7.5V,Ta=25˚C)
TYP.
70
660
565
Unit
˚
nm
MIN. TYP. MAX. Unit
Symbol
V
CC
4.75
V
5.0
5.25
V
LED
7.0
V
7.5
7.75
I
CC
------
mA
200
500
I
LED
------
A
5.5
7.0
V
IH
3.5
V
------
------
Input voltage
V
IL
------
V
------
1.5
I
IH
------
------
0.1
µA
Input current
I
IL
------
------
0.12
mA
Clock frequency
f
CLK
------
------
10.0 MH
Z
Frame frequency
f
FR
250
400
3 000
H
Z
*1 Under the condition that dichromatic all dots are lit.
s
Timing Chart
t
SU
th
t
WCLK
s
Luminance
Luminance is classified into 2 ranks shown below.
(V
CC
=5V,V
LED
=7.5V,Ta=25˚C)
CLOCK
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
1 300
1 000
2
1 690
1 300
Unit
cd/m
2
td
D
t
WL
LATCH
t=1/fosc
Internal
ENABLE
RENABLE
GENABLE
ADDRESS
(A0 to A2)
ON
ON
ON
V
D
(n) data ON
td(E-A)
s
Terminal Functions
Connector
Power
supply
(CN1)
Symbol
V
LED
V
cc
GND1
GND2
A0 to A2
Function
Supply voltage for LED(+7.5V)
Supply voltage for IC(+5V)
Ground for IC
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
/H
D31
/H
D0
/H
D15
Latch signal of display data H: Serial data is converted to
LATCH parallel data. L: Contents are latched.
LATCH signal is set up after switching address(A0 to A2)
RENABLE Controls ON/OFF of each color of LED
GENABLE (H: LED OFF)
Clock signal for data transmission in the shift-
CLOCK register.(L/H: serial data is shifted.)
ON
OFF ON
ON
ON
OFF
V
D
(n+1) data ON
td(A-E)
t
WKNA
V
D
(n)
td(A-L)
V
D
(n+1)
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
Input
signal
(CN2)
3 to 8 DECODER
GATE
PNP DRIVER
H
D16
H
D16
32 BIT SHIFT REGISTER/LATCH/DRIVER
32 BIT SHIFT REGISTER/LATCH/DRIVER
Ground for signal(Connected to ground for IC)
GND1
A0 to A2 Buffered input signal
RDATA Input signal generated through 32-bit shift register
GDATA
Output
LATCH Buffered input signal
signal
RENABLE
Buffered input signal
(CN3)
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.
(Notice)
32 BIT SHIFT REGISTER/LATCH/DRIVER
16!16
H
D31
H
D0
Dot matrix LED
H
D31
H
D0
H
D15
H
D15
SELECTOR
¡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
京公网安备 11010802033920号
EEWORLD
