Sharp LT1540M Datasheet
(Vcc=5V,VLED=8V,Ta=25˚C)
TYP.
50
660
565
Unit
˚
nm
Symbol
2θ
1
/2
Red
Yellow-green
λp
Parameter
Viewing angle
Peak emission wavelength
Supply voltage for IC
Supply voltage for LED
IC current dissipation
LED current dissipation
*1
Input voltage
V
CC
VLED
ICC
ILED
VIH
4.75
7.5
------
------
3.5
5.0
8.0
200
5.5
------
Clock frequency
f
CLK
------ ------
V
IL
------ ------
Input current
I
IH
------ ------
IIL
------ ------
Parameter Symbol
MIN. TYP.
5.25
8.25
500
7.0
------
10.0
1.5
0.1
0.12
MAX.
V
V
mA
A
V
MHz
Frame frequency
f
FR 250 400 3 000 Hz
V
µA
mA
Unit
(VCC=5V,VLED=8V,Ta=25˚C)
*1 Under the condition that dichromatic all dots are lit.
ON ON ONOFF
VD(n+1) data VD(n+2) data
td(C-L) td(L-C)
tdD
t=1/fosc
tWL
VD(n) data ON
td(E-A)
t
SU th
t
WCLK
td(A-E)
td(A-L)
Internal
t
WKNA
CLOCK
RDATA
GDATA
RDATA out
GDATA out
LATCH
ENABLE
ADDRESS
(A0 to A2)
VD(n+1) data ON
V
D(n+1)VD(n)
OFFON ON ON ON
RENABLE
GENABLE
Dot Matrix LED Unit for Outdoor Use LT1540M(Lamp Type)
Supply voltage for IC
Supply voltage for LED
Input voltage
Operating temperature
Storage temperature
Power dissipation
V
CC
VLED
VI
Topr
Tstg
P
-0.3 to +6.0
-0.3 to +8.5
-20 to +45
-25 to +100
58
V
V
V
˚C
Turn-on time t
ON 1
ms
˚C
W
Parameter Symbol Rating Unit
-0.3 to Vcc+0.3
(Ta=25˚C)
(Vcc=5V,VLED=8V,Ta=25˚C)
Radiation color
Red
Yellow-green
2
1 600
1 000
Unit
cd/m
2
Rank
1
1 200
750
Luminance is classified into 2 ranks shown below.
Connector
Output
signal
(CN3)
Input
signal
(CN2)
Power
supply
(CN1)
V
LED
VCC
GND1
Symbol
GND2
A0 to A2
RENABLE
GENABLE
CLOCK
GND1
A0 to A3
RDATA
GDATA
LATCH
RENABLE
GENABLE
CLOCK
GND1
LATCH
RDATA
GDATA
Serial data input for each color(H:ON, L:OFF)
Shift from up to down in the unit
H
D16→HD31→HD0→HD15
Supply voltage for LED (+8V)
Supply voltage for IC (+5V)
Ground for IC
Ground for LED
Address specification signal for column driver
Latch signal of display data.H: Serial data is
converted to parallel data. L: Contents are latched.
LATCH signal is set up after switching address(A0 to A2)
Controls ON/OFF of each color of LED.
(H: LED OFF)
Clock signal for data transmission in the shift-register.
(L→H: serial data is shifted.)
Ground for signal. (Connected to ground for IC)
Buffered input signal
Input signal generated through 32-bit shift
register
Buffered input signal
Buffered input signal
Buffered input signal
Ground for signal. (Connected to ground for IC)
Function
Each signal is used as input signal for next unit.
* As for the terminal number, refer to the outline dimensions.
MONO-MULTI
A0
A1
A2
RDATA
GDATA
GENABLE
CLOCK
GND1
Luminance adjustment circuit
A0
A1
A2
RDATA
GDATA
LATCH
RENABLE
GENABLE
CLOCK
GND1
RENABLE
GADJ
RADJ
H
D31
H D0
H D31
H D0
H D16 H D16
H D15 H D15
matrix LED
GATE
SELECTOR
OUT IN
OSC
16✕16 Dot
PNP
3 to 8 DECODER
DRIVER
32 BIT SHIFT REGISTER/LATCH/DRIVER
32 BIT SHIFT REGISTER/LATCH/DRIVER
32 BIT SHIFT REGISTER/LATCH/DRIVER
LATCH
Input/output circuit
331
HC367
473
■ Features
¡No. of dots : 16✕16dots
¡Outline dimensions : 240✕240mm
¡Dot size : 13.0✕13.0mm
¡Dot pitch : 14.9mm
¡
Radiation color : Yellow-green+Red(High-luminosity)dichromatic type
¡Driving method : 1/8 duty dynamic drive
■ Absolute Maximum Ratings ■ Electrical Characteristics
■ Optical Characteristics
LT1540M
■ Timing Chart
■ Luminance
■ Terminal Functions
■ Block Diagram
(Notice) ¡
(Internet) ¡Data for sharp's optoelectronic/power device is provided for internet.(Address http://www.sharp.co.jp/ecg/)
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.
159
P10✕13=130 9.59.5
159
9.5
2.5
9.5P10✕13=130
156
154
60 60
256-ø7.5
1
1
VR1
VR2
CN2
5
7
CN1
15
69.75
51
69.75
7
CN3
1
49
21
Depth7
15.84
70
6-M3
31
7 RDATA
CN2(Input signal)
4 GND
GENABLE
2
5 CLOCK
3 LATCH
1 GDATA
5 CLOCK
6 RENABLE6 RENABLE
3 LATCH
1 GDATA
GENABLE
4 GND
2
7 RDATA
CN3(Output signal)
1 VLED
Pin connection
CN1(Power supply)
4 GND
5 VLED
3 VCC
2 GND
130
157
15
23
52
38
1.6t
RADJ
P14.9✕15=223.5
239.2
P14.9✕15=223.5
120.0
HD16
HD31
HD0
HD15
119.6
VD0 VD15
11.0
MAX.
Height (Except CN1 to 3)
80.0
206.0
11.0 18.0 16.6
206.0
190.0
217.0
CN1
6
177.0
60.0
1
50.050.0
10
1
CN3
10
2-ø3.0
(Height3)
Positioning pin
Water-proof rubber
8-ø7.0 concave
217.0
119.6119.6
159.0
P2.5✕9=22.5
P3.96✕5=19.8
145.0
12-
(M3)
Insert nut
6
Depth
MIN.
45.0
10.0
9.0
1
GADJ
CN2
4.0
6.5
ø
7.0
ø
1 A0
2
3
4
5
6
7
8
9
10
A1
A2
RENABLE
RDATA
GDATA
LATCH
GENABLE
CLOCK
GND1
CN2
Pin No.
Name
Pin connection
(Input signal)
1 A0
2
3
4
5
6
7
8
9
10
A1
A2
RENABLE
RDATA
GDATA
LATCH
GENABLE
CLOCK
GND1
Pin No.
Name
(Output signal)CN3
1 VLED
2
3
4
VLED
Vcc
GND1
CN1
Pin No.
Name
(Power supply)
5 GND2
6 GND2
25.025.0
256-13.0 ✕ 13.0
Data shift direction
12
LT1540M
Loading...