LM40057AB LIGHTKEY | Alldatasheet
Document overview
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Technical content
Features
¾ 106.50mm (4.00 inch) digit high ¾ Dot size: Diameter 10.00 mm ¾ Pitch: 15.24 mm ¾ Wide viewing angle ¾ Range of emitted colors ¾ I.C. compatible ¾ Low power consumption ¾ White dot, grey or black face Available options ¾ Alternative emitting luminosity: Standard or high brightness version ¾ Alternative emitted color ¾ Alternative dot color ¾ Alternative face ¾ Both CC and CA versions are available ¾ Cropped terminal pins ¾ RoHS compliant Package Dimensions 76.20 13.00 5.08*6=30.48 15.24*4=60.96 76.00 PIN 1 1COL. 106.50 15.24*6=91.44 5432 ROW 10.00 0.80 5.30 0.50 Notes: 1. All dimensions are in millimeters (inches), Tolerance is + 0.25mm (0.01inch) unless other wise noted. 2. Specifications are subject to change without notice. 3. The gap between the reflector and PCB shall not exceed 0.25mm.
SPEC NO: DS10121846 REV : A.4 CHECKE D: Emily Zhou APPROVED: M.H. Lin P AGE: 2/3 HTTP://WWW.LTKEY.COM TEL: 0086-574-86322282 DA TE: Jul/20/2011 Datasheet of 4.00 inch 5x7 Dot Matrix LED Display Internal Circuit Diagram LM40057A (Common Cathode Row) LM40057B (Common Anode Row) 7 2 ROW PINNO. NO. PIN COL. 1 3 114 10 2 3 4 7 2 4 5 NO.PIN 142 ROW 1 9 NO.PIN 13 COL. 1 34 11 10 324 Selection Guide Part No. Chip Iv@IF=20mA One Dot Common Cathode Row Common Anode Row Material Color WLD Min. Typ. LD40 057AR LD40 057BR GaAlAs Super Red 640 12 15 LD40 057AD LD40 057BD GaAlAs Hi-Red 640 27 37.5 LD40 057AO LD40 057BO GaAsP Orange 625 10.5 13.5 LD40 057AY LD40 057BY GaAsP Yellow 588 12 15 LD40 057AG LD40 057BG GaP Green 568 10.5 13.5 LD40 057AUR LD40 057BUR AlGaInP Ultra Red 640 45 67.5 LD40 057AUO LD40 057BUO AlGaInP Ultra Orange 625 67.5 90 LD40 057AUA LD40 057BUA AlGaInP Ultra Amber 605 45 67.5 LD40 057AUY LD40 057BUY AlGaInP Ultra Yellow 595 45 67.5 LD40 057AUG LD40 057BUG AlGaInP Ultra Green 573 45 67.5 LD40 057APG LD40 057BPG InGaN Pure Green 525 180 450 LD40 057AUB LD40 057BUB InGaN Ultra Blue 470 45 67.5 LD40 057AUW LD40 057BUW SMD Ultra White \\ 150 180 Unit: \\ \\ \\ nm mcd mcd
SPEC NO: DS10121846 REV: A.4 CHECKED: Emil y Zhou APPROVED: M.H. Lin PAGE: 3/3 HTTP://WWW.LTKEY.COM TEL: 0086-574-86322282 DATE: Jul/20/2011 Datasheet of 4.00 inch 5x7 Dot Matrix LED Display Electrical Characteristics & Absolute Maximum Ratings Parameter Electrical optical Characteristics[1] Absolute Maximum Ratings[1] VF@ IF=20mA[2] Emitted Color Typ. Max. Reverse Current VR=5V Power Dissipation DC Forward Current Peak Forward Current[3] Super Red Per Dot 3.6 4.4 50 120 25 100 Hi-Red Per Dot 3.6 4.4 50 120 25 100 Orange Per Dot 4.2 5 50 160 30 100 Yellow Per Dot 4.2 5 50 160 30 100 Green Per Dot 4.4 5 50 160 30 100 Ultra Red Per Dot 3.8 5.2 50 120 30 100 Ultra Orange Per Dot 4 5.2 50 130 30 100 Ultra Amber Per Dot 4 5.2 50 130 30 100 Ultra Yellow Per Dot 4 5.2 50 130 30 100 Ultra Green Per Dot 4.2 5.2 50 150 30 100 Pure Green Per Dot 7 8 50 220 30 100 Ultra Blue Per Dot 7 8 50 240 30 100 Ultra White Per Dot 7 8 50 240 30 100 Unit: \\ V V uA mW mA mA N o t e s : 1. At Ta = 25 °C. 2. Forward voltage at forward current = 20mA. 3. Peak forward current at 1/10 Duty Cycle, 0.1ms Pulse.