LightKey Datasheet of 0.56 inch Four Digit 7 Segment LED Display LD5645A/B Series - 0.56 inch Four Digit 7 Segment LED Display ATTENTION OBSERVE PRECAUTIONS FOR HANDLING ELECTROSTATIC DISCHARGE SENSITIVE DEVICES Features Available options ¾ 14.20 mm (0.56 inch) digit high ¾ ¾ Excellent digit appearance ¾ Wide viewing angle ¾ Range of emitted colors ¾ I.C. compatible ¾ Low power consumption ¾ White segment, black face ¾ RoHS compliant Alternative emitting luminosity: Standard or high brightness version ¾ ¾ ¾ ¾ ¾ Alternative emitted color Alternative face and segment color Alternative font Both CA and CC versions are available Cropped terminal pins Package Dimensions 8.10 8.0 DIG.3 DIG.4 A UC 14.20(.56") 19.00 1.45 DIG.2 DIG.1 1.35 F G B LC C E D 12.70 12.70 50.30 6.30 0.50 8.00 PIN 1 12.70 0.51 15.24 2.54*5=12.70 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: DS10121721 REV: A.4 HTTP://WWW.DISPLAY-LEDS.COM CHECKED: Emily Zhou APPROVED: M.H. Lin TEL: 0086-574-86322282 PAGE: 1/3 DATE: Jul/20/2011 LightKey Datasheet of 0.56 inch Four Digit 7 Segment LED Display Internal Circuit Diagram LD5645A (Common Cathode) 12 9 DIG.1 A B C D E F G 8 DIG.2 A B C D E F G 6 DIG.3 A B C D E DIG.4 F G UC A B C D 11 7 4 2 1 10 5 E F G LC 3 LD5645B (Common Anode) 12 9 DIG.1 A B C D E F G 8 DIG.2 A B C D E F G 6 DIG.3 A B C D E DIG.4 F G UC A B C D 11 7 4 2 1 10 5 E F G LC 3 Selection Guide Four Digits 7 Segment LED Display, Digit Height: 14.20mm(0.56inch), External Dimensions: 50.30x19.00x8.00mm (L x W x H ) Part No. Chip Common Common Cathode Anode Material Color WLD Iv@IF=20mA Iv@IF=20mA One Seg One DP Min. Typ. Min. Typ. LD5645AR LD5645BR GaAlAs Super Red 640 8 10 8 10 LD5645AD LD5645BD GaAlAs Hi-Red 640 18 25 18 25 LD5645AO LD5645BO GaAsP Orange 625 7 9 7 9 LD5645AY LD5645BY GaAsP Yellow 588 8 10 8 10 LD5645AG LD5645BG GaP Green 568 7 9 7 9 LD5645AUR LD5645BUR AlGaInP Ultra Red 640 30 45 30 45 LD5645AUO LD5645BUO AlGaInP Ultra Orange 625 45 60 45 60 LD5645AUA LD5645BUA AlGaInP Ultra Amber 605 30 45 30 45 LD5645AUY LD5645BUY AlGaInP Ultra Yellow 595 30 45 30 45 LD5645AUG LD5645BUG AlGaInP Ultra Green 573 30 45 30 45 LD5645APG LD5645BPG InGaN Pure Green 525 120 300 120 300 LD5645AUB LD5645BUB InGaN Ultra Blue 470 30 45 30 45 LD5645AUW LD5645BUW InGaN Ultra White \ 100 120 100 120 Unit: \ \ \ nm mcd mcd mcd mcd SPEC NO: DS10121721 REV: A.4 HTTP://WWW.DISPLAY-LEDS.COM CHECKED: Emily Zhou APPROVED: M.H. Lin TEL: 0086-574-86322282 PAGE: 2/3 DATE: Jul/20/2011 LightKey Datasheet of 0.56 inch Four Digit 7 Segment LED Display Electrical Characteristics & Absolute Maximum Ratings Electrical optical Parameter Forward Hi-Red Orange Yellow Green Ultra Red Ultra Orange Ultra Amber Ultra Yellow Ultra Green Pure Green Ultra Blue Ultra White Unit: Reverse Voltage Emitted color Super Red Absolute Maximum Ratings[1] Characteristics[1] Current @ IF=20mA VR=5V Power Dissipation DC Peak Forward Forward Current Current[2] Typ. Max. Per Seg. 1.8 2.2 30 60 25 100 Per DP 1.8 2.2 30 60 25 100 Per Seg. 1.8 2.2 30 60 25 100 Per DP 1.8 2.2 30 60 25 100 Per Seg. 2.1 2.5 30 80 30 100 Per DP 2.1 2.5 30 80 30 100 Per Seg. 2.1 2.5 30 80 30 100 Per DP 2.1 2.5 30 80 30 100 Per Seg. 2.2 2.5 30 80 30 100 Per DP 2.2 2.5 30 80 30 100 Per Seg. 1.9 2.6 30 60 30 100 Per DP 1.9 2.6 30 60 30 100 Per Seg. 2 2.6 30 65 30 100 Per DP 2 2.6 30 65 30 100 Per Seg. 2 2.6 30 65 30 100 Per DP 2 2.6 30 65 30 100 Per Seg. 2 2.6 30 65 30 100 Per DP 2 2.6 30 65 30 100 Per Seg. 2.1 2.6 30 75 30 100 Per DP 2.1 2.6 30 75 30 100 Per Seg. 3.5 4 30 110 30 100 Per DP 3.5 4 30 110 30 100 Per Seg. 3.5 4 30 120 30 100 Per DP 3.5 4 30 120 30 100 Per Seg. 3.5 4 30 120 30 100 Per DP 3.5 4 30 120 30 100 V V uA mW mA mA \ Notes: 1. At Ta = 25 °C. 2. Peak forward current at 1/10 Duty Cycle, 0.1ms Pulse. SPEC NO: DS10121721 REV: A.4 HTTP://WWW.DISPLAY-LEDS.COM CHECKED: Emily Zhou APPROVED: M.H. Lin TEL: 0086-574-86322282 PAGE: 3/3 DATE: Jul/20/2011