LT1550W Datasheet, PDF (1/2 Pages) Sharp Electrionic Components – Full Color Dot Matrix LED Unit for Indoor Use (Chip Type)

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
VCC
VLED
V1
tON
Topr
Tstg
P
Rating
-0.3 to +5.5
-0.3 to (+6.5)
-0.3 to VCC+0.3
1
-10 to +60
-20 to +70
62
(Ta=25˚C)
Unit
V
V
V
ms
˚C
˚C
W
s Optical Characteristics
Parameter
Symbol
Red
Luminance Yellow-green LV
Blue
Red
Peak emission wavelength Yellow-green λp
Blue
Red
Spectrum radiation bandwidth Yellow-green ∆λ
Blue
(Ta=25˚C,VCC=5V,V(R, G)=5V,V(B)=8V)
TYP.
Unit
(100)
(150)
cd/m²
(70)
635
565
nm
430
35
30
nm
65
s Terminal Functions
Connector Symbol
Power
supply
(CN1)
V(R,G)
V(B)
VCC
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)
Input
signal
(CN2)
Latch signal of display data(H: Serial data is converted
LATCH _{to parallel data.L: Contents are latched.)}
RENABLE _{Controls ON/OFF of each color of LED}
GENABLE
BENABLE
(H: LED OFF)
Clock signal for data transmission in the shift-
CLOCK 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}
GDATA
BDATA
register
Output
signal ^LATCH
Buffered input 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.
s Electrical Characteristics _{(Ta=25˚C,VCC=5V,V(R, G)=5V,V(B)=8V)}
Parameter
Supply voltage for IC
Supply voltage for LED
IC current dissipation
Symbol
VCC
VLED
ICC
MIN
4.75
(5.75)
------
TYP
5.0
(6.0)
200
MAX
5.25
(6.25)
260
Unit
V
mA
Input voltage
VIH
VIL
3.5 ------ ------ V
------ ------ 1.5
V
Input current
IIH^*3
IIL^*4
------ ------ 0.1 µA
------ ------ 0.12 mA
Clock frequency
Frame frequency
fCLK
fFR
------ ------ 10 MHZ
70 250 1000 HZ
*1 Red, *2 Yellow-green,Blue, *3 VIH=5, *4 VIL=0V
s Timing Chart
tsu
CLOCK
R, G, B
DATA
R, G, B
DATA(OUT)
th
VD(n+1) data
td(C-L)
LATCH
tdD
R, G, B ENABLE
VD(n)data on
ADDRESS
(A0 to A3)
VD(n)
td(L-A)
td(E-A)
tWCLK
1
VD(n+2) data
tWL
td(L-C)
tWENA
OFF ^{VD(n+1)data on}
1/f ENA
VD(n+1)
td(A-E)
s Block Diagram
OUT
A0
A1
A2
A3
RDATA
GDATA
BDATA
LATCH
RENABLE
GENABLE
BENABLE
CLOCK
I/O part
331 ⁴⁷³
HC367
IN
A0
A1
A2
A3
RDATA
GDATA
BDATA
LATCH
RENABLE
GENABLE
BENABLE
CLOCK
4 TO 16 DECODER
Nch FET DRIVER
16!16DOT!2
TRICHROMATIC
LED MATRIX
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