LightKey Datasheet of 0.70 inch 5x7 Dual Color Dot Matrix LED Display LM7057A/BRG Series - 0.70 inch 5x7 Dual Color Dot Matrix LED Display ATTENTION OBSERVE PRECAUTIONS FOR HANDLING ELECTROSTATIC DISCHARGE SENSITIVE DEVICES Features Available options ¾ 17.80mm (0.70inch) digit high ¾ ¾ Dot size: Diameter 1.90mm ¾ Pitch: 2.54mm ¾ Wide viewing angle ¾ Emitting colors: red-green 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 1 7 . 8( 0 . 7 1 ) 2. 54 × 6 = 15 . 2 4 PI N 1 1 . 8 8× 8 = 1 5 . 04 Ø 1. 9 0(0. 07 ) 2.54×4=10.16 12.7(0.50 ) COL. ROW 1 1 2 3 4 5 6.3 2 3 4 5 Ø0.50 6 7 7.62 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 0.70 inch 5x7 Dual Color Dot Matrix LED Display Internal Circuit Diagram LM7057ARG (Common Cathode Row) LM7057BRG (Common Anode Row) COL. 1 2 3 4 5 PIN NO. 3 9 8 5 1 17 16 13 10 12 PIN NO. COL. 1 2 3 4 5 PIN NO. 3 9 8 5 1 17 16 13 10 12 PIN NO. 1 18 1 18 2 2 2 2 3 15 3 15 4 14 4 14 5 6 5 6 6 7 6 7 7 11 7 11 RED CODE N CODE M GREEN Selection Guide 0.70 inch 5x7 Red-Green LED dot matrix module, Matrix Height: 17.80mm(0.70 inch), External Dimensions: 17.80x12.70x6.30mm (L x W x H) Part No. Description Chip Common Common Cathode Row Anode Row Standard Brightness LM7057ARG LM7057BRG Material GaAlAs GaP Ultra-High Brightness AlGaInP LM7057AURUG SPEC NO: DS10121583 HTTP://WWW.LTKEY.COM LM7057BURUG REV: A.4 AlGaInP CHECKED: Emily Zhou TEL: 0086-574-86322282 Color Iv(mcd)@20mA One Dot W LD (nm) Min. Typ. Super Red 640 8 10 Green 568 7 9 Ultra Red 640 30 45 Ultra 573 30 45 Green APPROVED: M.H. Lin PAGE: 2/3 DATE: Jul/20/2011 LightKey Datasheet of 0.70 inch 5x7 Dual Color Dot Matrix LED Display Electrical Characteristics & Absolute Maximum Ratings per Dot Electrical optical Characteristics Color Absolute Maximum Ratings[1] [1] Forward Reverse Voltage(V) Current Power DC Forward @ IF=20mA VR=5V Dissipation Current (uA) (mW) (mA) Peak Forward Current[2] (mA) Reverse Voltage (V) Typ. Max. 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 5 Ultra Green 2.1 2.6 30 75 30 100 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