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| Dot Matrix LED Unit for Outdoor Use LT1448MA(Lamp Type,Water-proof Type) s Features No. of dots : 16!16dots Outline dimensions : 160!160mm Dot size : o7.5mm(Using oval lamp) Dot pitch : 9.9mm Radiation color : Yellow-green+Red(High-luminosity)dichromatic type Driving method : 1/4 duty dynamic drive LT1448MA 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 VDD VLED VI tON Topr Tstg P Rating -0.3 to +5.5 -0.3 to +5.0 -0.3 to Vcc+0.3 1 -10 to +45 -20 to +100 38 (Ta=25C) s Electrical Characteristics Parameter Supply voltage for IC Supply voltage for LED IC current dissipation*1 LED current dissipation*1 (VCC=5V,VLED=4.5V,Ta=25C) Unit V V V ms C C W s Optical Characteristics Symbol Parameter 21/2 Viewing angle(Horizontal) Red p Peak emission wavelength Yellow-green (VCC=5V,VLED=4.5V,Ta=25C) TYP 70 660 565 Unit nm Symbol MIN. TYP. MAX. Unit V 5.25 5.0 VDD 4.75 V 4.75 4.5 4.25 VLED mA 800 400 -----IDD A 7.0 6.0 -----ILED V ----------3.5 VIH Input voltage V 1.5 ----------VIL A 0.1 ----------IIH Input current mA 0.12 ----------IIL MHZ 10 ----------fCLK Clock frequency 400 3 000 HZ 250 fFR Frame frequency *1 Under the condition that dichromatic all dots are lit. s Timing Chart t SU th t WCLK CLOCK s Luminance Luminance is classified into 2 ranks shown below. (VCC=5V,VLED=4.5V,Ta=25C) RDATA GDATA VD (N+1) VD (n+2) data t d (C-L) t dD t d (L-C) t WL RDATA out GDATA out Radiation color Red Yellow-green Rank 1 1 100 700 2 1 300 800 Unit cd/m 2 LATCH 1/fosc Internal ENABLE ON OFF t d(K-L) ON t d (L-K) OFF ON RENABLE GENABLE ADDRESS (A0, A1) VD (n) data ON t d (K-A) VD (n) t d(L-A) t d (A-K) VD (n+1) data ON t WKNA VD (n+1) s Terminal Functions Function Supply voltage for LED(+4.5V) Supply voltage for IC(+5V) Ground for IC Ground for LED Address specification signal for column driver Serial data input for each color(H:ON, L:OFF) RDATA Shift from up to down in the unit GDATA (HD48/HD63/HD32/HD47/HD16/HD31/HD0/HD15) Latch signal of display data Input signal LATCH L/H: Contents of shift register are latched. (CN2) RENABLE Controls ON/OFF of each color of LED GENABLE (H: LED OFF) Clock signal for data transmission in the shiftCLOCK register.(L/H: serial data is shifted.) Ground for signal (Connected to ground for IC) GND1 Buffered input signal A0,A1 RDATA Input signal generated through 64-bit shift register or Output signal GDATA buffer (CN3) LATCH Buffered input signal RENABLE Buffered input signal GENABLE CLOCK Buffered input signal Ground for signal (Connected to ground for IC) GND1 Each signal is used as input signal for next unit. * As for the terminal number, refer to the outline dimensions. (Notice) Connector Symbol VLED Power supply VCC (CN1) GND1 GND2 A0,A1 s Block Diagram Luminance adjustment circuit Input/output circuit VR2 VR1 OSC HC123 473 331 HC541 OUT A0 A1 RENABLE RDATA GDATA LATCH GENABLE CLOCK GND1 MONO-MULTI IN A0 A1 RENABLE RDATA GDATA LATCH GENABLE CLOCK GND1 3 to 8 DECODER PNP DRIVER V D0 16bit SHIFT REGISTER/ LATCH/DRIVER H D0 V D15 16bit SHIFT REGISTER/ LATCH/DRIVER 16bit SHIFT REGISTER/ LATCH/DRIVER 16bit SHIFT REGISTER/ LATCH/DRIVER 16bit SHIFT REGISTER/ LATCH/DRIVER HD0 16bit SHIFT REGISTER/ LATCH/DRIVER HD15 HD16 HD15 HD16 16!16 HD31 HD32 HD31 HD32 16bit SHIFT REGISTER/ LATCH/DRIVER Dot matrix LED 16bit SHIFT REGISTER/ LATCH/DRIVER HD47 HD48 HD47 HD48 HD63 HD63 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. (Internet) Data for sharp's optoelectronic/power device is provided for internet.(Address http://www.sharp.co.jp/ecg/) 16 11 HD0 159 148.5 (P9.9!15) HD16 HD32 12 22 HD48 11.6 159.5 148.5 (P9.9!15) Data shift direction HD15 VD0 HD13 HD47 HD63 VD15 Pin connection 159 132 59.4 5 20 5 59.4 o3 Boss Height 3 CN1:Power supply 1 2 3 4 5 6 VLED VLED Vcc GND1 GND2 GND2 CN2:Input signal 10 46.5 22.5 61 59.4 10 1 2 3 4 5 6 7 8 9 10 A0 A1 GND1 RENABLE RDATA GDATA LATCH GENABLE CLK GND1 CN3:Output signal 1 2 3 4 5 6 7 8 9 10 A0 A1 GND1 RENABLE RDATA GDATA LATCH GENABLE CLK GND1 1 1 CN3 CN2 VR2 VR1 159 106 61 59.4 19.8 CN1 6 1 47 Water-proof ring 20 6-M3(Depth10) LT1448MA |
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