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| Dot Matrix LED Unit for Indoor Use LT1451ED(Chip On Board Type) s Features No. of dots : 16!16dots Outline dimensions : 96!96mm Dot size : o5.0mm Dot pitch : 6.0mm Radiation color : Yellow-green+Red(dichromatic type) Driving method : 1/16 duty dynamic drive LT1451ED s Absolute Maximum Ratings Parameter Supply voltage for IC Supply voltage for LED Input voltage LED current dissipation Turn-on time Operating temperature Storage temperature Power dissipation Symbol VCC VLED VI ILED tON Topr Tstg P Rating -0.3 to +6.0 -0.3 to +6.0 -0.3 to Vcc+0.3 1 -10 to +45 -20 to +70 13 s Electrical Characteristics (Ta=25C) (VCC=5V,VLED=5V,Ta=25C) Unit V V V A ms C C W Symbol MIN. TYP. MAX. Unit V 5.25 5.0 VCC 4.75 V 5.25 5.0 4.5 VLED -----mA 50 25 ICC -----A 2.3 2.0 ILED ----------V 3.5 VIH Input voltage ----------V 1.5 VIL ----------A 0.1 IIH Input current ----------0.12 IIL mA ----------4 fCLK MHZ Clock frequency -----625 80 Frame frequency fFR HZ *1 Under the condition that dichromatic all dots are lit. Parameter Supply voltage for IC Supply voltage for LED IC current dissipation*1 LED current dissipation*1 s Optical Characteristics Parameter Red Luminance Yellow-green Viewing angle Red Peak emission wavelength Yellow-green Symbol LV 21/2 p (VCC=5V,VLED=5V,Ta=25C) TYP. 100 100 70 635 565 Unit cd/m nm 2 s Timing Chart tsu CLOCK RDATA, GDATA RDATAout GDATAout th tWCLK (n+1)th line's data t dD td(C-L) n th line's data ON OFF tWL (n+2)th line's data td(L-C) s Terminal Functions Connector Power supply (CN1) Symbol VLED VCC GND1 GND2 A0 to A3 RDATA GDATA Input signal (CN2) LATCH ENABLE Function Supply voltage for LED (+5V) Supply voltage for IC (+5V) Ground for IC Ground for LED Address specification signal for row driver Serial data input for red (H=ON, L=OFF) LATCH ENABLE td(E-L) ADDRESS (A0 to A3) n th line td(E-A) td(L-A) td(A-E) (n+1)th line's data ON td(L-E) (n+1)th line OFF t WENA s Block Diagram CN2 BUFFER BUFFER DECODER DRIVER SHIFT REGISTER & LATCH(G) LED MATRIX SHIFT REGISTER & LATCH(R) DRIVER DRIVER VOL.1 G.ADJ VOL.2 R.ADJ Mono-Multi OSC Vcc CN3 A0 A1 A2 A3 RDATA GDATA LATCH ENABLE CLK Serial data input for yellow-green (H=ON, L=OFF) Latch signal of display data. H: Serial data is converted to parallel data. L: Contents are latched. Controls ON/OFF of LED (H: LED OFF) A0 A1 A2 A3 RDATA GDATA LATCH ENABLE CLK Clock signal for data transmission in the CLOCK shift-register. (LH: serial data is shifted.) Ground for signal GND1 A0 to A3 Buffered input signal Input signal generated through 16-bit shift register RDATA or buffer Input signal generated through 16-bit shift register Output GDATA signal or buffer (CN3) Buffered input signal LATCH ENABLE Buffered input signal CLOCK Buffered input signal Ground for signal GND1 Each signal is used as input signal for next unit. * As for the terminal number, refer to the outline dimensions. 1K 47K HC367 Input circuit 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/) (Notice) 16 6 95.7 0.3 P6.0!15=90 27.4 0.3 256-o5 H D0 Data shift direction 3 P6.0!15=90 95.70.3 H D15 VD0 VD15 Pin connection 93 43.5 0.1 40 CN1(Power supply) 16.5 2.5!9=22.5 43.5 0.1 40 Pin No. Name 1 2 3 4 VLED Vcc GND1 GND2 40 0.1 33 25 VOL.1 CN3 CN2 10 CN2(Input signal) Pin No. Name 3 +0 -0.15 CN3(Output signal) Pin No. Name 93 40 0.1 33 25 VOL.2 1 CN1 3.96!3=11.8 4-M3(Screw depth 6) 14 18 24 9 LT1451ED 26 1 4 1 2 3 4 5 6 7 8 9 10 A0 A1 A2 A3 RDATA GDATA LATCH ENABLE CLOCK GND1 1 2 3 4 5 6 7 8 9 10 A0 A1 A2 A3 RDATA GDATA LATCH ENABLE CLOCK GND1 |
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