LT1550 Sharp, LT1550 Datasheet
LT1550
Manufacturer Part Number
LT1550
Description
LT1550Sharp Electrionic Components [Dot Matrix LED Unit for Indoor Use (Chip Type)]
Manufacturer
Sharp
Datasheet
1.LT1550.pdf
(2 pages)
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(Notice)
(Internet) ¡Data for sharp's optoelectronic/power device is provided for internet.(Address http://www.sharp.co.jp/ecg/)
Each signal is used as input signal for next unit.
* As for the terminal number, refer to the outline dimensions.
Dot Matrix LED Unit for Indoor Use LT1550ED(Chip Type)
¡No. of dots : 16 32dots
¡Outline dimensions : 64.0 128.0mm
¡Dot size : 3.0 3.0mm
¡Dot pitch : 4.0mm
¡Radiation color : Yellow-green+Red(dichromatic type)
¡Driving method : 1/16 duty dynamic drive
*1 25% or less of lighting
Connector
Peak emission wavelength
Power
supply
(CN1)
(CN2)
Output
signal
(CN3)
Supply voltage for IC
Supply voltage for LED
Input voltage
Turn-on time
Operating temperature
Storage temperature
Power dissipation
signal
Input
Features
Absolute Maximum Ratings
Optical Characteristics
Terminal Functions
Luminance
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
Parameter
devices shown in catalogs, data books, etc. Contact SHARP in order to obtain the latest device specification sheets before using any SHARP device.
V
V
GND
A0 to A3
RDATA
GDATA
LATCH
ENABLE
CLOCK
GND
A0 to A3
RDATA
GDATA
LATCH
ENABLE
CLOCK
GND
Symbol
LED
CC
Yellow-green
Yellow-green
Red
Red
Latch signal of display data. H: Serial data is
converted to parallel data. L: Contents are latched.
Supply voltage for LED (+4V)
Supply voltage for IC (+5V)
Ground
Address specification signal for row driver
Serial data input for red (H=ON, L=OFF)
Serial data input for yellow-green (H=ON, L=OFF)
Controls ON/OFF of LED (H: LED OFF)
Clock signal for data transmission in the
shift-register. (L H: serial data is shifted.)
Ground for signal
Buffered input signal
Input signal generated through 32-bit shift register
or buffer
Input signal generated through 32-bit shift register
or buffer
Buffered input signal
Buffered input signal
Buffered input signal
Ground for signal
Symbol
2
Lv
p
1
Symbol
/
V
2
V
T
V
T
t
LED
P
ON
opr
CC
stg
1
Function
-0.3 to Vcc+0.3
-10 to +60
-0.3 to +5.5
-0.3 to +4.5
-20 to +70
(V
TYP.
Rating
120
180
120
635
565
20
CC
1
=5V,V
*1
LED
=4V,Ta=25˚C)
(Ta=25˚C)
Unit
ms
˚C
˚C
W
V
V
V
cd/m
Unit
nm
˚
2
*1 Under the condition that dichromatic all dots are lit.
IC current dissipation
Supply voltage for IC
Supply voltage for LED
LED current dissipation
Input voltage
Input current
Clock frequency
Frame frequency
Electrical Characteristics
Timing Chart
Block Diagram
A0
A1
A2
A3
RDATA
GDATA
LATCH
ENABLE
CLOCK
(A0 to A3)
CLOCK
R&G
DATA
R&G
DATA(OUT)
LATCH
ENABLE
ADDRESS
OUT
Parameter
tsu
V
V
t
D
V
(n+1) data
D
dD
th
(n) data ON
D(
n)
*1
td(C-L)
*1
td(L-A)
td(E-A)
DICHROMATIC
16 16DOT 2
4 TO 16 DECODER
LED MATRIX
Symbol
Pch FET DRIVER
V
V
I
I
V
V
I
I
f
f
CC
LED
IH
IL
CLK
FR
CC
LED
IH
IL
OFF
t WL
V
t WENA
MIN.
D(
4.75
3.75
V
td(A-E)
------
------
------
------
------
------
3.5
n+1)
td(L-C)
70
D
(n+1) data ON
Input/output circuit
(V
CC
V
t
1/ f
WCLK
D
=5V,V
(n+2) data
TYP. MAX. Unit
LT1550ED
140
------
------
------
------
------
250
5.0
4.0
3.8
ENA
HC367
LED
331
1 000
=4V,Ta=25˚C)
5.25
4.25
0.12
200
------
4.2
1.5
0.1
OFF
10
473
IN
MH
A0
A1
A2
A3
RDATA
GDATA
LATCH
ENABLE
CLOCK
mA
mA
H
V
V
A
V
V
A
Z
Z
16
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LT1550 Summary of contents
Page 1
... Dot Matrix LED Unit for Indoor Use LT1550ED(Chip Type) Features ¡No. of dots : 16 32dots ¡Outline dimensions : 64.0 128.0mm ¡Dot size : 3.0 3.0mm ¡Dot pitch : 4.0mm ¡Radiation color : Yellow-green+Red(dichromatic type) ¡Driving method : 1/16 duty dynamic drive Absolute Maximum Ratings Parameter Symbol Supply voltage for Supply voltage for LED ...
Page 2
... HD0 HD15 VD0 1 10 OUT LT1550ED 512-3 chip LED +0 128 -0.8 Data shift direction 0.25 110 44.0 44.0 15.0 IN VR2 1 7 VR1 CN1 6-M3 Insert nut (Effective screw depth 4.0) Pin connection CN1(Power supply) CN2(Input signal) Pin No. Name Pin No. 1 VLED VLED VLED VCC 4 A3 ...