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| Features w 0.3 inch (7.62mm) digit height Continuous uniform segments. Choices of five bright colors-AlGaAs red/bright red/ green/yellow/red orange. Low power requirement. Excellent characters appearance. High contrast. High brightness. Wide viewing angle. Solid state reliability. Common anode or Common cathode modles. Two digit package simplifies alignments & assembly. Leads on 0.1" (2.54mm) centers. Categorized for luminous intensity. I.C. compatiable. Easy mounting on P.C. board. w w .D at Sh a ee 4U t co . LTD-322 LTD-323 0.3" Dual Digit Numeric LED Displays m Series Package Dimensions Notes:All dimensions are in millimeters (inches). Tolerance: 0.25mm (0.01") unless otherwise noted. Description The LTD-322/323 series are 0.3 inch (7.62mm) height dual digit displays. All device displays have black face and white segments. The AlGaAs red seven segment displays are designed for appleications requiring low power consumption. They are tested and selected for the excellent low current characteristics to ensure that the segments are matched at low current. Drive current as low as 1 mA per segment is available. The AlGaAs red series device utilize LED chips which are made from AlGaAs on a non-transparent GaAs substrate. The bright red and green series devices utilize LED chips which are made from GaP on a transparent GaP substrate. The yellow, red orange series devices utilize LED chips which are made from GaAsP on a transparent GaP substrate. Devices AlGaAs Red 322WC 323WC Part No. LTDBright Red Pin Connection Pin No. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. w w 322P 323P w Red Green Yellow Orange 322G 323G 322Y 323Y 322E 323E .D t a S a e h t e U 4 .c m o Description Dualplex Common Cathode, Rt. Hand Decimal Dualplex Common Anode, Rt. Hand Decimal Internal Circuit Diagram Connection A.LTD-322 Anode G No Pin Anode A Anode F Common Cathode (Digit 2) Anode D Anode E Anode C Anode B Common Cathode (Digit 1) 9-124 w w w .D Cathode G No Pin Cathode A Cathode F Common Anode (Digit 2) Cathode D Cathode E Cathode C Cathode B Common Anode (Digit 1) ta a B.LTD-323 he S et 4U A B . om c Internal Circuit Diagrams A.LTD-322 B.LTD-323 Absolute Maximum Rating at Ta=25 Parameter Power Dissipation Per Segment Peak Forward Current Per Segment (1/10 Duty Cycle, 0.1ms Pulse Width) Continuous Forward Current Per Segment Derating Linear from 25 Per Segment Reverse Voltage Per Segment Operating Temperature Range Stroage Temperature Range Solder Temperature 1/16 Inch Below Seating Plane for 3 Seconds at 260 AlGaAs Red 75 125 30 0.4 5 Bright Red 40 60 15 0.2 5 -35 -35 Green 75 100 25 0.33 5 to +85 to +85 Red Yellow Orange 60 80 20 0.27 5 75 100 25 0.33 5 Unit mW mA mA mA/ V Electrical/Optical Characteristics at Ta=25 LTD-322WC/323WC Parameter Average Luminous Intensity Peak Emission Wavelength Spectral Line Half-Width Dominant Wavelength d VF IR IV-m Symbol IV P Min. 200 Typ. 600 3100 660 35 638 1.6 1.7 1.8 Max. Unit cd nm nm nm Tset Condition IF=1mA IF=5mA IF=20mA IF=20mA IF=20mA IF=1mA IF=5mA IF=20mA VR=5V IF=10mA Forward Voltage, Per Segment Reverse Current, Per Segment Luminous Intensity Matching Ratio 2.4 100 2:1 V A LTD-322P/323P Parameter Average Luminous Intensity Peak Emission Wavelength Spectral Line Half-Width Dominant Wavelength Forward Voltage, Per Segment Reverse Current, Per Segment Luminous Intensity Matching Ratio d VF IR IV-m Symbol IV P Min. 210 Typ. 650 697 90 657 2.1 Max. Unit cd nm nm nm Tset Condition IF=10mA IF=20mA IF=20mA IF=20mA IF=20mA VR=5V IF=10mA 2.6 100 2:1 V A 9-125 DISPLAYS LTD-322G/323G Parameter Average Luminous Intensity Peak Emission Wavelength Spectral Line Half-Width Dominant Wavelength Forward Voltage, Per Segment Reverse Current, Per Segment Luminous Intensity Matching Ratio d VF IR IV-m Symbol IV P Min. 540 Typ. 1600 565 30 569 2.1 Max. Unit cd nm nm nm Tset Condition IF=10mA IF=20mA IF=20mA IF=20mA IF=20mA VR=5V IF=10mA 2.6 100 2:1 V A LTD-322Y/323Y Parameter Average Luminous Intensity Peak Emission Wavelength Spectral Line Half-Width Dominant Wavelength Forward Voltage, Per Segment Reverse Current, Per Segment Luminous Intensity Matching Ratio d VF IR IV-m Symbol IV P Min. 500 Typ. 2000 585 35 588 2.1 Max. Unit cd nm nm nm Tset Condition IF=10mA IF=20mA IF=20mA IF=20mA IF=20mA VR=5V IF=10mA 2.6 100 2:1 V A LTD-322E/323E Parameter Average Luminous Intensity Peak Emission Wavelength Spectral Line Half-Width Dominant Wavelength Forward Voltage, Per Segment Reverse Current, Per Segment Luminous Intensity Matching Ratio d VF IR IV-m Symbol IV P Min. 500 Typ. 2000 630 40 621 2.0 Max. Unit cd nm nm nm Tset Condition IF=10mA IF=20mA IF=20mA IF=20mA IF=20mA VR=5V IF=10mA 2.6 100 2:1 V A Note: Luminous intensity is measured with a light sensor and filter combiuation that approximates the CIE (Commision Internationale De L'Eclairage) eye-response curve. 9-126 Typical Electrical/Optical Characteristic Curves (25 Ambient Temperature Unless Otherwise Noted) 9-127 DISPLAYS |
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