LT1465ED Datasheet, PDF (1/2 Pages) Sharp Electrionic Components – Dot Matrix LED Unit for Outdoor Use (Lamp Type)

Dot Matrix LED Unit for Outdoor Use LT1465ED(Lamp Type)
s Features
¡No. of dots : 16!16dots
¡Outline dimensions : 64!64mm
¡Dot size : ø3.0mm
¡Dot pitch : 4.0mm
¡Radiation color : Yellow-green+Red (dichromatic type)
¡Driving method : 1/16 duty dynamic drive
LT1465ED
s Absolute Maximum Ratings
Parameter
Supply voltage for IC
Supply voltage for LED
Input voltage^*1
Turn-on time
Operating temperature
Storage temperature
Power dissipation
*1 VI<Vcc at Vcc≤5
Symbol
VCC
VLED
VI
toN
Topr
Tstg
P
Rating
5.5
5.5
5.5
1
-20 to +45
-25 to +85
13
(Ta=25˚C)
Unit
V
V
V
ms
˚C
˚C
W
s Optical Characteristics
s Optic_Paa_rl_amC_eh_tea_rracteris_Syti_mc_bs_ol
Viewing angle
2θ¹/2
(VCC=5V,VLED=5V,Ta=25˚C)
TYP.
Unit
110
˚
Peak emission wavelength
Red
Yellow-green
λp
635
565
nm
s Luminance
Luminance is classified into 2 ranks shown below. It is adjustable by
variable registers.
(VCC=5V,VLED=5V,Ta=25˚C)
Rank
Radiation color
1
2
Unit
Red
160
Yellow-green
160
s Terminal Functions
200
cd/m²
200
Connector
Power
supply
(CN1)
Input
signal
(CN2)
Symbol
Function
VLED Supply voltage for LED (+5V)
VCC
Supply voltage for IC (+5V)
GND1 Ground for IC
GND2 Ground for LED
A0 to A3 Address specification signal for row driver
Serial data input for red (H=ON, L=OFF)
RDATA _{Shift from right to left(VD15¡VD0) in the unit}
Serial data input for yellow-green (H=ON, L=OFF)
GDATA _{Shift from right to left(VD15¡VD0) in the unit}
LATCH
Latch signal of display data.L¡H: Contents of shift
register are latched.
ENABLE ^{Controls ON/OFF of LED (H: LED OFF)}
Clock signal for data transmission in the
CLOCK _{shift-register. (L¡H: Serial data is shifted.)}
GND1 Ground for signal. (Connected to ground for IC)
A0 to A3 Buffered input signal
RDATA
Input signal generated through 16-bit shift register
or buffer
Output
signal
(CN3)
GDATA
LATCH
Input signal generated through 16-bit shift register
or buffer
Buffered input signal
ENABLE Buffered input signal
CLOCK Buffered input signal
GND1 ^{Ground for signal. (Connected to ground for IC)}
Each signal is used as input signal for next unit.
* As for the terminal number, refer to the outline dimensions.
s Electrical Characteristics
(VCC=5V,VLED=5V,Ta=25˚C)
Parameter
Symbol MIN. TYP. MAX. Unit
Supply voltage for IC
VCC
4.75 5.0 5.25 V
Supply voltage for LED
VLED 4.75 5.0 5.25 V
IC current dissipation^*1
ICC
------ 20 40 mA
LED current dissipation^*1 ILED
------ 1.7 2.0 A
Input voltage
VIH
3.5 ------ ------ V
VIL
------ ------ 1.5 V
Input current
IIH
------ ------ 0.1 µA
IIL
------ ------ 0.12 mA
Clock frequency
fCLK
------ ------ 3.0 MHZ
Frame frequency
fFR
80 100 ------ HZ
*1 Under the condition that dichromatic all dots are lit.
s Timing Chart
tsu
th
tWCLK
CLOCK
RDATA
GDATA
VD(N+1)data
tWL
td(C-L)
VD(N+2)data
LATCH
INTERNAL
ENABLE
RENABLE
GENABLE
ADDRESS
1/ f OSC
ON
OFF
td(E-L)
VD(n)dataON
VD(n)
td(L-A)
ON
OFF
VD(n+1)dataON
td(A-E)
VD(n+1)
ON
tOFF
s Block Diagram
Luminance adjustment circuit
RAD
GADJ
OSC
MONO-MULTI
HC123
Input/output circuit
473
HC367
331J
Input
A0
A1
A2
A3
RDATA
GDATA
LATCH
ENABLE
CLOCK
3 to 8
3 to 8
DECODER DECODER
NPN DRIVER
HD0
RVD15
16!16 DOT
LED
DICHROMAT
MATRIX
HD15
GVD15
RVD0
GVD0
Output
A0
A1
A2
A4
RDATA
GDATA
LATCH
ENABLE
CLOCK
60 (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
devices shown in catalogs, data books, etc. Contact SHARP in order to obtain the latest device specification sheets before using any SHARP device.
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