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Sharp Electronic Components Datasheet

LT1550ED Datasheet

Dot Matrix LED Unit for Indoor Use (Chip Type)

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Dot Matrix LED Unit for Indoor Use LT1550ED(Chip Type)
s 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
s Absolute Maximum Ratings
Parameter
Supply voltage for IC
Supply voltage for LED
Input voltage
Turn-on time
Operating temperature
Storage temperature
Power dissipation
*1 25% or less of lighting
Symbol
VCC
VLED
V1
tON
Topr
Tstg
P
Rating
-0.3 to +5.5
-0.3 to +4.5
-0.3 to Vcc+0.3
1
-10 to +60*1
-20 to +70
20
(Ta=25˚C)
Unit
V
V
V
ms
˚C
˚C
W
s Optical Characteristics
Parameter
Symbol
Luminance
Red
Yellow-green
Lv
Viewing angle
2θ1/2
Peak emission wavelength
Red
Yellow-green
λp
(VCC=5V,VLED=4V,Ta=25˚C)
TYP.
Unit
120
cd/m2
180
120 ˚
635 nm
565
s Terminal Functions
Connector
Power
supply
(CN1)
Symbol
VLED
VCC
GND
A0 to A3
Function
Supply voltage for LED (+4V)
Supply voltage for IC (+5V)
Ground
Address specification signal for row driver
RDATA Serial data input for red (H=ON, L=OFF)
Input
signal
(CN2)
GDATA Serial data input for yellow-green (H=ON, L=OFF)
Latch signal of display data. H: Serial data is
LATCH converted to parallel data. L: Contents are latched.
ENABLE Controls ON/OFF of LED (H: LED OFF)
CLOCK
Clock signal for data transmission in the
shift-register. (L¡H: serial data is shifted.)
GND
Ground for signal
A0 to A3 Buffered input signal
RDATA
Input signal generated through 32-bit shift register
or buffer
Output
signal
(CN3)
GDATA
LATCH
ENABLE
Input signal generated through 32-bit shift register
or buffer
Buffered input signal
Buffered input signal
CLOCK Buffered input signal
GND
Ground for signal
Each signal is used as input signal for next unit.
* As for the terminal number, refer to the outline dimensions.
LT1550ED
s Electrical Characteristics
(VCC=5V,VLED=4V,Ta=25˚C)
Parameter
Symbol MIN. TYP. MAX. Unit
Supply voltage for IC
Supply voltage for LED
VCC
VLED
4.75 5.0 5.25 V
3.75 4.0 4.25 V
IC current dissipation*1 ICC ------ 140 200 mA
LED current dissipation*1 ILED
------ 3.8 4.2 A
Input voltage
VIH 3.5 ------ ------ V
VIL ------ ------ 1.5 V
Input current
IIH ------ ------ 0.1 µA
IIL ------ ------ 0.12 mA
Clock frequency
fCLK ------ ------ 10 MHZ
Frame frequency
fFR 70 250 1 000 HZ
*1 Under the condition that dichromatic all dots are lit.
s Timing Chart
tsu th
CLOCK
R&G
DATA
R&G
DATA(OUT)
LATCH
VD(n+1) data
td(C-L)
t dD
ENABLE
VD(n) data ON
ADDRESS
(A0 to A3)
VD(n)
td(L-A)
td(E-A)
s Block Diagram
t WCLK
t WL
VD(n+2) data
td(L-C)
t WENA
OFF VD(n+1) data ON
1/ f ENA
VD(n+1)
OFF
td(A-E)
Input/output circuit
331 473
HC367
OUT
A0
A1
A2
A3
RDATA
GDATA
LATCH
ENABLE
CLOCK
4 TO 16 DECODER
Pch FET DRIVER
IN
A0
A1
A2
A3
RDATA
GDATA
LATCH
ENABLE
CLOCK
16!16DOT!2
DICHROMATIC
LED MATRIX
(Notice) ¡In the absence of confirmation by device specification sheets, SHARP takes no responsibility for any defects that may occur in equipment using any SHARP
16devices 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/)


Sharp Electronic Components Datasheet

LT1550ED Datasheet

Dot Matrix LED Unit for Indoor Use (Chip Type)

No Preview Available !

4
HD0
128
+0
-0.8
512-3t chip LED
8.2
HD15
VD0
Data shift direction
VD31
110±0.25
44.0
15.0
44.0
1
10
OUT
VR2
71
VR1 CN1
IN
10
1
6-M3 Insert nut
(Effective screw depth 4.0)
Pin connection
CN1(Power supply) CN2(Input signal) CN3(Output signal)
Pin No. Name
1 VLED
2 VLED
3 VLED
4 VCC
5 GND
6 GND
7 GND
Pin No. Name
1 A0
2 A1
3 A2
4 A3
5 RDATA
6 GDATA
7 LATCH
8 ENABLE
9 CLOCK
10 GND
Pin No. Name
1 A0
2 A1
3 A2
4 A3
5 RDATA
6 GDATA
7 LATCH
8 ENABLE
9 CLOCK
10 GND
LT1550ED


Part Number LT1550ED
Description Dot Matrix LED Unit for Indoor Use (Chip Type)
Maker Sharp Electrionic Components
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LT1550ED Datasheet PDF






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