1.85 inch ( 47.0mm ) 8X8 DOT MATRIX LED DISPLAY UVP-2688/2788 SERIES DESCRIPTION The UVP-2688/2788 is 1.85 inch ( 47.0mm) height 8X8 dot matrix display. Single color displays have the choices of three bright colors-AlGaAs red/green/yellow. Multicolor displays are applicable to two bright colors:green and red orange All device have black face and white dot. The AlGaAs red LED chip are made from AlGaAs on a non-transparent GaAs substrate. The green LED chip are made from GaP on a transparent GaP substrate. The yellow and red orange LED chip are made from GaAsP on a transparent GaP substrate. FEATURES l Industuy standard size l Wide viewing angle l Continuous uniform dot matrix. l Excellent characters appearance l Low power requirement DEVICES PART NO. DESCRIPTION PACKAGE DIMENSION INTERNAL CIRCUIT DIAGRAM UVP-2688 UVP-2788 Column Anode Column Anode Fig. 1 Fig. 2 ABSOLUTE MAXIMUM RATINGS PARAMETER Power Dissipation Per Dot Peak Forward Current Per Dot Continuous Forward Current Per Dot Derating Linear From 25o C Per Dot Reverse Voltage Per Dot Operating Temperature Range Storage Temperature Range AlGaAs RED GREEN 36 125 15 0.20 5 36 100 13 0.17 5 @ TA=25o C YELLOW RED ORANGE UNIT 32 36 mW 80 100 mA 10 13 mA 0.12 0.17 mA/o C 5 5 V -35o Cto+85o C -35o Cto+85o C Solder Temperature 1/16 inch Below Seating Plane for 3 Seconds at 260o C Unity Opto Technology Co., Ltd. 11/14/2000 1.85 inch ( 47.0mm ) 8X8 DOT MATRIX LED DISPLAY UVP-2688/2788 SERIES PACKAGE DIMENSIONS Fig. 1 INTERNAL CIRCUIT DIAGRAM UVP-2688A UVP-2788A Fig. 2 Unity Opto Technology Co., Ltd. 11/14/2000 1.85 inch ( 47.0mm ) 8X8 DOT MATRIX LED DISPLAY UVP-2688/2788 SERIES UVP-2688/2788 SERIES PIN CONNECTION PIN CONNECTION UVP-2688 UVP-2788 1 CATHODE ROW 2 CATHODE ROW 2 2 ANODE COL. 2 ANODE COL. 2G 3 NO PIN ANODE COL. 2E 4 CATHODE ROW 4 CATHODE ROW 4 5 ANODE COL. 4 ANODE COL. 4G 6 NO PIN ANODE COL. 4E 7 CATHODE ROW 6 CATHODE ROW 6 8 ANODE COL. 6 ANODE COL. 6G 9 NO PIN ANODE COL. 6E 10 CATHODE ROW 8 CATHODE ROW 8 11 ANODE COL. 8 ANODE COL. 8G 12 NO PIN ANODE COL. 8E 13 CATHODE ROW 7 CATHODE ROW 7 14 ANODE COL. 7 ANODE COL. 7G 15 NO PIN ANODE COL. 7E 16 CATHODE ROW 5 CATHODE OW 5 17 ANODE COL. 5 ANODE COL. 5G 18 NO PIN ANODE COL. 5E 19 CATHODE ROW 3 CATHODE ROW 3 20 ANODE COL. 3 ANODE COL. 3G 21 NO PIN ANODE COL. 3E 22 CATHODE ROW 1 CATHODE ROW 1 23 ANODE CO. 1 ANODE COL. 1G 24 NO PIN ANODE COL. 1E Unity Opto Technology Co., Ltd. 11/14/2000 1.85 inch ( 47.0mm ) UVP-2688/2788 SERIES 8X8 DOT MATRIX LED DISPLAY ELECTRICAL/OPTICAL CHARACTERISTICS AlGaAs RED (UVP-2688AC) SYMBOL MIN. TYP. IV 6300 12000 µcd @ TA=25o C TEST CONDITION Ip = 80 mA 1/16 Duty λp/Hue 660/638 nm IF = 20 mA Spectral Line Half-Width ∆λ 35 nm IF = 20 mA Forward Voltage, any Dot VF 1.8 2.4 V IF = 20 mA Reverse Current, any Dot IR 100 µA VR = 5 V Luminous Intensity Matching Ratio IV-m 2:1 PARAMETER Average Luminous Intensity Peak Emission Wavelength MAX. UNIT IF = 10 mA GREEN (UVP-2688AG) & (UVP-2788AA GREEN) SYMBOL MIN. TYP. IV 1780 4800 µcd @ TA=25o C TEST CONDITION Ip = 80 mA 1/16 Duty λp/Hue 565/569 nm IF = 20 mA Spectral Line Half-Width ∆λ 30 nm IF = 20 mA Forward Voltage, any Dot VF 2.1 2.6 V IF = 20 mA Reverse Current, any Dot IR 100 µA PARAMETER Average Luminous Intensity Peak Emission Wavelength Luminous Intensity Matching Ratio IV-m MAX. UNIT VR = 5 V 2:1 IF = 10 mA MAX. YELLOW (UVP-2688AY) 4800 µcd @ TA=25o C TEST CONDITION Ip = 80 mA 1/16 Duty λp/Hue 585/588 nm IF = 20 mA Spectral Line Half-Width ∆λ 35 nm IF = 20 mA Forward Voltage, any Dot VF 2.1 2.6 V IF = 20 mA Reverse Current, any Dot IR 100 µA VR = 5 V Luminous Intensity Matching Ratio IV-m 2:1 PARAMETER Average Luminous Intensity Peak Emission Wavelength SYMBOL MIN. IV 1780 TYP. UNIT IF = 10 mA RED ORANGE (UVP-2788AA RED ORANGE) SYMBOL MIN. TYP. IV 1780 4800 µcd @ TA=25o C TEST CONDITION Ip = 80 mA 1/16 Duty λp/Hue 630/621 nm IF = 20 mA Spectral Line Half-Width ∆λ 40 nm IF = 20 mA Forward Voltage, any Dot VF 2.0 2.6 V IF = 20 mA Reverse Current, any Dot IR 100 µA VR = 5 V Luminous Intensity Matching Ratio IV-m 2:1 PARAMETER Average Luminous Intensity Peak Emission Wavelength MAX. UNIT IF = 10 mA Unity Opto Technology Co., Ltd. 11/14/2000 1.2 inch ( 30.42mm ) 5X7 DOT MATRIX LED DISPLAY UVP-2688/2788 SERIES E G Y C Relative Luminous Intensity Relative Luminous Intensity TYPICAL ELECTRICAL/OPTICAL CHARACTERISTIC CURVES ( Ambient Temperature =25oC Unless Otherwise Noted ) 1 0.5 0 4.0 2.0 1.0 0.0 500 525 550 575 600 625 650 675 700 725 750 0 15 10 C E G Y 5 0 0 10 20 30 40 50 60 70 80 90 E 100 G 50 0 0.0 1.0 2.0 3.0 4.0 5.0 Forward Voltage (V) Fig 5. FORWARD CURRENT VS. FORWARD VOLTAGE 10 15 20 25 30 4.0 3.0 Y C 2.0 1.0 0.0 0 5 10 15 20 25 30 Forward Current IF (mA) Fig 4. RELATIVE LUMINOUS INTENSITY VS. FORWARD CURRENT Forward Current IF(mA) Forward Current IF(mA) Ambient Temperature (oC ) Fig 3. ALLOWABLE DC CURRENT VS. AMBIENT TEMPERATURE 150 5 Forward Current IF (mA) Fig 2. RELATIVE LUMINOUS INTENSITY VS. FORWARD CURRENT Relative Luminous Intensity Forward Current IF (mA) Fig 1. RELATIVE LUMINOUS INTENSITY VS. WAVELENGTH 20 G 3.0 150 C 100 Y 50 0 0.0 1.0 2.0 3.0 4.0 5.0 Forward Voltage (V) Fig 6. FORWARD CURRENT VS. FORWARD VOLTAGE Unity Opto Technology Co., Ltd. 11/14/2000