LT1442 SHARP [Sharp Electrionic Components], LT1442 Datasheet
LT1442
Manufacturer Part Number
LT1442
Description
Dot Matrix LED Unit for Outdoor Use (Lamp Type)
Manufacturer
SHARP [Sharp Electrionic Components]
Datasheet
1.LT1442.pdf
(2 pages)
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Quantity
Price
Part Number:
LT1442
Manufacturer:
LT/凌特
Quantity:
20 000
Part Number:
LT1442CS
Manufacturer:
LT
Quantity:
20 000
Part Number:
LT1442CS8
Manufacturer:
LINEAR/凌特
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20 000
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Part Number:
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Manufacturer:
LINEAR
Quantity:
5
(Notice)
(Internet) ¡Data for sharp's optoelectronic/power device is provided for internet.(Address http://www.sharp.co.jp/ecg/)
Dot Matrix LED Unit for Outdoor Use LT1442M/LT1445M(Lamp Type)
¡No. of dots : 16 16dots
¡Outline dimensions : 160 160mm
¡Dot size : ø7.5mm
¡Dot pitch : 10mm
¡Radiation color : Yellow-green+Red(High-luminosity)dichromatic type
¡Driving method : Static drive
Each figure in the table is the one of LT1442M/LT1445M in sequence.
Each signal is used as input signal for next unit.
* As for the terminal number, refer to the outline dimensions.
*1 V
Each figure in the table is the one of LT1442M/LT1445M in sequence.
Peak emission wavelength
Power supply
Input signal
Connector
Output signal
(CN1)
(CN2)
(CN3)
Supply voltage for IC
Supply voltage for LED
Input voltage
Operating temperature
Storage temperature
Power dissipation
Luminance
Features
Absolute Maximum Ratings
Optical Characteristics
Terminal Functions
I
<Vcc at Vcc 5
Viewing angle
¡In the absence of confirmation by device specification sheets, SHARP takes no responsibility for any defects that may occur in equipment using any SHARP
Parameter
devices shown in catalogs, data books, etc. Contact SHARP in order to obtain the latest device specification sheets before using any SHARP device.
Parameter
V
V
GND
RDATA
GDATA
LATCH
RENABLE
GENABLE
CLOCK
GND
RDATA
GDATA
LATCH
RENABLE
GENABLE
CLOCK
GND
Symbol
LED
CC
*1
Yellow-green
Yellow-green
Red
Red
L: Contents of shift register is transmitted to latch
Supply voltage for LED(+3V)
Supply voltage for IC(+5V)
Ground
Serial data input for red(H=ON, L=OFF)
Serial data input for yellow-green(H=ON, L=OFF)
register. H: Contents are latched.
Controls ON/OFF of red LED
(L: LED ON)
Controls ON/OFF of yellow-green LED
(L: LED OFF)
Clock signal for data transmission in the shift-
register.(L/H: serial data is shifted.)
Ground for signal
Input signal generated through 256-bit shift register or buffer
Input signal generated through 256-bit shift
register or buffer
Buffered input signal
Buffered input signal
Buffered input signal
Buffered input signal
Ground for signal
Symbol
2
L
p
V
1
Symbol
/
V
V
V
T
T
P
2
opr
stg
CC
LED
I
MIN. 800/700
MIN. 800/700
TYP
Function
-20 to +100
36/54
-10 to +75
(V
660
565
Rating
35/49
CC
5.5
3.5
5.5
=5V,V
LED
=3V,Ta=25˚C)
(Ta=25˚C)
cd/m
Unit
Unit
nm
˚C
˚C
W
V
V
V
˚
2
*1 Under the condition that dichromatic all dots are lit.
Each figure in the table is the one of LT1442M/LT1445M in sequence.
Supply voltage for IC
Supply voltage for LED
IC current dissipation
LED current dissipation
Input voltage
Input current
Clock frequency
Electrical Characteristics
Timing Chart
Block Diagram
CN2 Input signal portion
Parameter
CLOCK
RDATA
GDATA
LATCH
RENABLE
GENABLE
Internal ENABLE
Display pattern
RDATA
GDATA
GENABLE
RENABLE
CLOCK
LATCH
tsetup
Shift register(yellow-green)
*1
Luminance
adjustment
circuit
Constant current driver
Dot matrix
LED lamp(dichromatic)
16 16dots
OSC
B
U
E
R
F
F
thold
LATCH
OFF
(For red)
VR1
Symbol
V
V
I
I
V
V
I
I
f
MONO-MULTI
td(C-L)
CC
LED
IH
IL
CLK
CC
LED
IH
IL
t
WENA
Yel l o w-green Red
ON
t
WL
Constant current driver
Shift register(red)
(For yellow-green)
LATCH
t
MIN. TYP.
WCLK
VR2
4.75
2.75
------
------
------
------
------
------
3.5
(V
1/f
1/f
U
R
B
F
F
E
ENA
OSC
LT1445M
CC
OFF
220/280
9.3/11.5
=5V,V
------
------
------
------
------
5.0
3.0
CN3 Output signal portion
GDATA
GENABLE
RENABLE
CLOCK
LATCH
RDATA
LED
MAX.
5.25
3.25
0.12
------
------
------
1.5
0.1
3.0
=3V,Ta=25˚C)
MHz
Unit
mA
mA
V
V
A
V
V
A
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LT1442 Summary of contents
Page 1
... Unit 5.5 V 3.5 V 5.5 V -10 to +75 ˚C -20 to +100 ˚C 35/ Under the condition that dichromatic all dots are lit. (V =5V,V =3V,Ta=25˚C) Each figure in the table is the one of LT1442M/LT1445M in sequence. CC LED TYP Unit MIN. 800/700 cd/m 2 MIN. 800/700 36/54 ˚ 660 nm 565 Function Electrical Characteristics Parameter Symbol MIN ...
Page 2
... P10 13=130 156 154 60 CN1 CN3 LT1442M/LT1445M 9.5 256-ø7.5 60 Pin connection CN1(Power supply) 1 VLED 2 GND 3 VCC CN2 7 4 GND VR1 5 VLED VR2 1 CN2(Input signal) 1 GDATA 2 GENABLE 3 4 GND 5 CLOCK 6 RENABLE 6-M3 7 RDATA 49 Depth7 1.6t CN3(Output signal) 1 GDATA ...