LightKey Datasheet of 1.20 inch 5x7 Dual Color Dot Matrix LED Display LM12057C/DRG Series -1.20 inch 5x7 Dual Color Dot Matrix LED Display ATTENTION OBSERVE PRECAUTIONS FOR HANDLING ELECTROSTATIC DISCHARGE SENSITIVE DEVICES Features Available options ¾ 39.10mm (1.20inch) digit high ¾ ¾ Dot size: Diameter 3.00mm ¾ Pitch: 4.60mm ¾ Wide viewing angle ¾ Range of emitted colors ¾ I.C. compatible ¾ Low power consumption ¾ White segment ¾ RoHS compliant Alternative emitting luminosity: Standard or high brightness version ¾ ¾ ¾ ¾ ¾ Alternative emitted color Alternative segment color Alternative font Common Cathode is available Cropped terminal pins Package Dimensions 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: DS10121583 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 1.20 inch 5x7 Dual Color Dot Matrix LED Display Internal Circuit Diagram Common Cathode Row Common Anode Row Selection Guide 1.2 inch 8x8 Red-Green LED dot matrix module, Matrix Height: 32mm(1.2inch), External Dimensions: 32x32x8mm (L x W x H) Part No. Description Chip Common Common Cathode Row Anode Row Standard Brightness LM12057ERG LM12057FRG Material Color Brightness LM12057EURUG LM12057FURUG SPEC NO: DS10121583 HTTP://WWW.LTKEY.COM REV: A.4 One Dot W LD (nm) Min. Typ. Super Red 640 8 10 Green 568 7 9 AlGaInP Ultra Red 640 30 45 AlGaInP Ultra Green 573 30 45 GaAlAs GaP Ultra-High Iv(mcd)@20mA CHECKED: Emily Zhou TEL: 0086-574-86322282 APPROVED: M.H. Lin PAGE: 2/3 DATE: Jul/20/2011 LightKey Datasheet of 1.20 inch 5x7 Dual Color Dot Matrix LED Display Electrical Characteristics & Absolute Maximum Ratings LM12057FURPGUB Electrical Characteristics[1] Reverse VF(V) Color @ IF=20mA[2] Current VR=5V Absolute Maximum Ratings[3] Power DC Forward Dissipation Current (mW) (mA) Peak Forward Current[2] Reverse Voltage (V) Typ. Max. (uA) Super Red 1.8 2.2 30 60 25 100 5 Green 2.2 2.5 30 80 30 100 5 Ultra Red 1.9 2.6 30 60 30 100 Ultra Green 2.1 2.6 300 75 30 100 (mA) 5 Operating/ Storage Temp.: -40 to +80 deg.; Lead Solder Temp.: 260 deg. for 3-5 Sec. 2mm below package base 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: DS10121583 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