LT1550ED

Dot Matrix LED Unit for Indoor Use LT1550ED(Chip Type) s Features ¡No. of dots : 16!32dots ¡Outline dimensions : 64.0!128.0mm ¡Dot size : 3.0!3.0mm ¡Dot pitch : 4.0mm ¡Radiation color : Yellow-green+Red(dichromatic type) ¡Driving method : 1/16 duty dynamic drive LT1550ED s Absolute Maximum Ratings Parameter Supply voltage for IC Supply voltage for LED Input voltage Turn-on time Operating temperature Storage temperature Power dissipation *1 25% or less of lighting Symbol VCC VLED V1 tON Topr Tstg P Rating -0.3 to +5.5 -0.3 to +4.5 -0.3 to Vcc+0.3 1 -10 to +60*1 -20 to +70 20 (Ta=25˚C) s Electrical Characteristics Parameter Supply voltage for IC Supply voltage for LED IC current dissipation*1 LED current dissipation*1 (VCC=5V,VLED=4V,Ta=25˚C) Unit V V V ms ˚C ˚C W s Optical Characteristics Parameter Red Luminance Yellow-green Viewing angle Red Peak emission wavelength Yellow-green Symbol Lv 2θ1/2 λp Symbol MIN. TYP. MAX. Unit 4.75 5.0 VCC 5.25 V 3.75 4.0 VLED 4.25 V -----140 200 ICC mA -----3.8 4.2 ILED A 3.5 ----------VIH V Input voltage ----------1.5 VIL V ----------0.1 µA IIH Input current ----------0.12 mA IIL Clock frequency ----------10 fCLK MHZ 70 Frame frequency 250 1 000 HZ fFR *1 Under the condition that dichromatic all dots are lit. (VCC=5V,VLED=4V,Ta=25˚C) TYP. 120 180 120 635 565 Unit cd/m ˚ nm 2 s Timing Chart tsu CLOCK R&G DATA R&G DATA(OUT) LATCH VD(n) data ON VD(n+1) data td(C-L) t dD t WL td(L-C) t WENA OFF VD(n+1) data ON 1/ f ENA ADDRESS (A0 to A...