Full Color Dot Matrix LED Unit for Indoor Use LT1550W(Chip Type)
s
Features
¡No.
of dots : 16!32dots
¡Outline
dimensions : 64!128mm
¡Dot
size : 3.0!3.0mm
¡Dot
pitch : 4.0mm
¡Radiation
color : Blue+Yellow-green+Red(Full color)
¡Driving
method : 1/16 duty dynamic drive
(Under development)
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 +5.5
-0.3 to (+6.5)
-0.3 to V
CC
+0.3
1
-10 to +60
-20 to +70
62
(Ta=25˚C)
s
Electrical Characteristics
Parameter
Supply voltage for IC
Supply voltage for LED
IC current dissipation
(Ta=25˚C,V
CC
=5V,V
(R, G)
=5V,V
(B)
=8V)
Unit
V
V
V
ms
˚C
˚C
W
Symbol
MIN
TYP MAX
V
CC
4.75
5.25
5.0
V
LED
(5.75) (6.0) (6.25)
I
CC
------
260
200
V
IH
3.5
------
------
Input voltage
V
IL
------
1.5
------
I
IH
*3
------
0.1
------
Input current
I
IL
*4
------
0.12
------
Clock frequency
f
CLK
------
10
------
Frame frequency
f
FR
70
1000
250
*1 Red, *2 Yellow-green,Blue, *3 V
IH
=5, *4 V
IL
=0V
Unit
V
mA
V
V
µA
mA
MH
Z
H
Z
s
Optical Characteristics
Parameter
Red
Luminance Yellow-green
Blue
Red
Peak emission wavelength Yellow-green
Blue
Red
Spectrum radiation bandwidth Yellow-green
Blue
Symbol
L
V
(Ta=25˚C,V
CC
=5V,V
(R, G)
=5V,V
(B)
=8V)
λp
∆λ
TYP.
(100)
(150)
(70)
635
565
430
35
30
65
Unit
cd/m
2
s
Timing Chart
tsu
CLOCK
R, G, B
DATA
th
t
WCLK
V
D
(n+1) data
td(C-L)
nm
R, G, B
DATA(OUT)
LATCH
t
dD
1
t
WL
td(L-C)
V
D
(n+2) data
t
WENA
V
D(
n)data on
OFF V
D(
n+1)data on
1/f
ENA
V
D(
n+1)
td(L-A)
td(E-A)
td(A-E)
nm
R, G, B ENABLE
ADDRESS
(A0 to A3)
V
D(
n)
s
Terminal Functions
Connector
Symbol
V
(R,G)
Power
V
(B)
supply
V
CC
(CN1)
GND
A0 to A3
RDATA
GDATA
BDATA
Function
Supply voltage for LED(Red,Yellow-green)+5V
Supply voltage for LED(Blue)+(+8V±10%)
Supply voltage for IC+5V
Ground
Address specification signal for row driver
Serial data input for each color(H:ON, L:OFF)
Latch signal of display data(H: Serial data is converted
to parallel data.L: Contents are latched.)
A0
A1
A2
A3
RDATA
GDATA
BDATA
LATCH
RENABLE
GENABLE
BENABLE
CLOCK
s
Block Diagram
I/O
part
331
HC367
473
OUT
IN
A0
A1
A2
A3
RDATA
GDATA
BDATA
LATCH
RENABLE
GENABLE
BENABLE
CLOCK
Input LATCH
signal
RENABLE
(CN2) GENABLE Controls ON/OFF of each color of LED
BENABLE (H: LED OFF)
Clock signal for data transmission in the shift-
register.(L/H: serial data is shifted.)
CLOCK
GND
A0 to A3
RDATA
GDATA
BDATA
Ground for signal
Buffered input signal
4 TO 16 DECODER
Nch FET DRIVER
FOR RED
32BIT
SHIFT-REGISTER, LATCH, DRIVER
AND LUMINANCE ADJUSTMENT CIRCUIT
32BIT
SHIFT-REGISTER, LATCH, DRIVER
AND LUMINANCE ADJUSTMENT CIRCUIT
Input signal generated through 32-bit shift
register
Output
Buffered input signal
LATCH
signal
(CN3) RENABLE
GENABLE Buffered input signal
BENABLE
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.
(Notice)
FOR YELLOW-GREEN
16!16DOT!2
TRICHROMATIC
LED MATRIX
32BIT
SHIFT-REGISTER, LATCH, DRIVER
AND LUMINANCE ADJUSTMENT CIRCUIT
devices
catalogs, data books, etc. Contact SHARP
74
(Internet)
¡Data
forshown inoptoelectronic/power device is provided for in order to obtain the latest device specification sheets before using any SHARP device.
sharp's
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
FOR BLUE
嵌入式系统
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
