LightKey Datasheet of 4.00 inch 5x7 Dot Matrix LED Display LM40057A/B Series – 4.00 inch 5x7 Dot Matrix LED Display ATTENTION OBSERVE PRECAUTIONS FOR HANDLING ELECTROSTATIC DISCHARGE SENSITIVE DEVICES Features Available options ¾ 106.50mm (4.00 inch) digit high ¾ 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 ¾ RoHS compliant Alternative emitting luminosity: Standard or high brightness version ¾ ¾ ¾ ¾ ¾ Alternative emitted color 2 3 Alternative dot color Alternative face Both CC and CA versions are available Cropped terminal pins Package Dimensions COL. 1 4 5 ROW 1 3 106.50 15.24*6=91.44 2 4 5 6 7 10 .0 0 15.24*4=60.96 5.30 0.50 76.00 13.00 PIN 1 0.80 76.20 5.08*6=30.48 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 HTTP://WWW.LTKEY.COM CHECKED: Emily Zhou TEL: 0086-574-86322282 APPROVED: M.H. Lin PAGE: 1/3 DATE: Jul/20/2011 LightKey Datasheet of 4.00 inch 5x7 Dot Matrix LED Display Internal Circuit Diagram LM40057A (Common Cathode Row) COL. 1 PIN 13 NO. ROW PIN NO. 2 3 4 5 3 4 11 10 6 LM40057B (Common Anode Row) COL.1 PIN 13 NO. ROW PIN NO. 1 9 1 9 2 14 2 14 3 8 3 8 4 5 12 4 5 12 5 1 5 1 6 7 6 7 7 2 7 2 2 3 4 5 3 4 11 10 6 Selection Guide Part No. Chip Common Common Cathode Row Anode Row Material Iv@IF=20mA Color WLD One Dot Min. Typ. LD40057AR LD40057BR GaAlAs Super Red 640 12 15 LD40057AD LD40057BD GaAlAs Hi-Red 640 27 37.5 LD40057AO LD40057BO GaAsP Orange 625 10.5 13.5 LD40057AY LD40057BY GaAsP Yellow 588 12 15 LD40057AG LD40057BG GaP Green 568 10.5 13.5 LD40057AUR LD40057BUR AlGaInP Ultra Red 640 45 67.5 LD40057AUO LD40057BUO AlGaInP Ultra Orange 625 67.5 90 LD40057AUA LD40057BUA AlGaInP Ultra Amber 605 45 67.5 LD40057AUY LD40057BUY AlGaInP Ultra Yellow 595 45 67.5 LD40057AUG LD40057BUG AlGaInP Ultra Green 573 45 67.5 LD40057APG LD40057BPG InGaN Pure Green 525 180 450 LD40057AUB LD40057BUB InGaN Ultra Blue 470 45 67.5 LD40057AUW LD40057BUW SMD Ultra White \ 150 180 nm mcd mcd Unit: \ SPEC NO: DS10121846 HTTP://WWW.LTKEY.COM \ REV: A.4 \ CHECKED: Emily Zhou TEL: 0086-574-86322282 APPROVED: M.H. Lin PAGE: 2/3 DATE: Jul/20/2011 LightKey Datasheet of 4.00 inch 5x7 Dot Matrix LED Display Electrical Characteristics & Absolute Maximum Ratings Electrical optical Parameter Absolute Maximum Ratings[1] [1] Characteristics Emitted Color VF@ Reverse IF=20mA[2] Current Typ. Max. VR=5V Power Dissipation DC Peak Forward Forward Current 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 Notes: 1. At Ta = 25 °C. 2. Forward voltage at forward current = 20mA. 3. Peak forward current at 1/10 Duty Cycle, 0.1ms Pulse. SPEC NO: DS10121846 HTTP://WWW.LTKEY.COM REV: A.4 CHECKED: Emily Zhou TEL: 0086-574-86322282 APPROVED: M.H. Lin PAGE: 3/3 DATE: Jul/20/2011