TSAL74 High Power Infrared Emitting Diode, 95 nm, GaAlAs/GaAs Description TSAL74 is a high efficiency infrared emitting diode in GaAlAs on GaAs technology, molded in clear plastic packages. In comparison with the standard GaAs on GaAs technology these emitters achieve more than 1 % radiant power improvement at a similar wavelength. The forward voltages at low current and at high pulse current roughly correspond to the low values of the standard technology. Therefore these emitters are ideally suitable as high performance replacements of standard emitters. Features Extra high radiant power and radiant intensity High reliability e2 Low forward voltage Suitable for high pulse current operation Standard T-1¾ ( 5 mm) package Angle of half intensity ϕ = ± 25 Peak wavelength λ p = 94 nm Good spectral matching to Si photodetectors Lead (Pb)-free component Component in accordance to RoHS 22/95/EC and WEEE 22/96/EC 94 8389 Applications Infrared remote control units with high power requirements Free air transmission systems Infrared source for optical counters and card readers IR source for smoke detectors Absolute Maximum Ratings Parameter Test condition Symbol Value Unit Reverse voltage V R 5 V Forward current I F 1 ma Peak forward current t p /T =.5, t p = 1 µs I FM 2 ma Surge forward current t p = 1 µs I FSM 1.5 A Power dissipation P V 21 mw Junction temperature T j 1 C Operating temperature range T amb - 55 to + 1 C Storage temperature range T stg - 55 to + 1 C Soldering temperature t 5 sec, 2 mm from case T sd 26 C Thermal resistance junction/ ambient R thja 35 K/W Document Number 8114 Rev. 1.6, 28-Nov-6 1
TSAL74 Electrical Characteristics Parameter Test condition Symbol Min Typ. Max Unit Forward voltage I F = 1 ma, t p = 2 ms V F 1.35 1.6 V I F = 1 A, t p = 1 µs V F 2.6 3 V Temp. coefficient of V F I F = 1 ma TK VF - 1.3 mv/k Reverse current V R = 5 V I R 1 µa Junction capacitance V R = V, f = 1 MHz, E = C j 25 pf Optical Characteristics Parameter Test condition Symbol Min Typ. Max Unit Radiant intensity I F = 1 ma, t p = 2 ms I e 25 4 125 mw/sr I F = 1. A, t p = 1 µs I e 22 31 mw/sr Radiant power I F = 1 ma, t p = 2 ms φ e 35 mw Temp. coefficient of φ e I F = 2 ma TKφ e -.6 %/K Angle of half intensity ϕ ± 25 deg Peak wavelength I F = 1 ma λ p 94 nm Spectral bandwidth I F = 1 ma Δλ 5 nm Temp. coefficient of λ p I F = 1 ma TKλ p.2 nm/k Rise time I F = 1 ma t r 8 ns Fall time I F = 1 ma t f 8 ns Virtual source diameter method: 63 % encircled energy 2.2 mm Typical Characteristics 25 25 P - Power Dissipation (MW) V 2 15 1 5 R thja I - Forward Current (ma) F 2 15 1 5 R thja 2 4 6 8 1 2 4 6 8 1 94 7957 T amb - Ambient Temperature ( C) 96 11986 T amb - Ambient Temperature ( C) Figure 1. Power Dissipation vs. Ambient Temperature Figure 2. Forward Current vs. Ambient Temperature 2 Document Number 8114 Rev. 1.6, 28-Nov-6
TSAL74 1 1 1 I - Forward Current (A) F 1 I FSM = 1 A (Single Pulse) t p /T =.1.5.1.5 I - Radiant Intensity (mw/sr) e 1 1 1 1-1 1. 1-2 1-1 1 1 1 1 2 96 11987 t p - Pulse Duration (ms) 96 12154.1 1 1 1 1 2 1 3 1 4 I F - Forward Current (ma) Figure 3. Pulse Forward Current vs. Pulse Duration Figure 6. Radiant Intensity vs. Forward Current 1 4 1 IF - Forward Current (ma) 1 3 1 2 1 1 t P = 1 µs t P /T =.1 - Radiant Power (mw) e Φ 1 1 1 1 136 1 2 3 V F - Forward Voltage (V) 4 1362.1 1 1 1 1 2 1 3 1 4 I F - Forward Current (ma) Figure 4. Forward Current vs. Forward Voltage Figure 7. Radiant Power vs. Forward Current V Frel - Relative Forward Voltage (V) 1.2 1.1 1..9.8 I F = 1 ma I e rel ; Φ e rel 1.6 1.2.8.4 I F = 2 ma.7 2 4 6 8 94 799 T amb - Ambient Temperature ( C) 1 94 7993-1 1 5 1 T amb - Ambient Temperature ( C) 14 Figure 5. Relative Forward Voltage vs. Ambient Temperature Figure 8. Rel. Radiant Intensity/Power vs. Ambient Temperature Document Number 8114 Rev. 1.6, 28-Nov-6 3
TSAL74 1.25 1 2 3 - Relative Radiant Power e rel Φ 1..75.5.25 I F = 1 ma I e rel - Relative Radiant Intensity 1..9.8.7 4 5 6 7 8 14291 89 94 λ - Wavelength (nm) 99 1433.6.4.2.2.4.6 Figure 9. Relative Radiant Power vs. Wavelength Figure 1. Relative Radiant Intensity vs. Angular Displacement Package Dimensions in mm 1434 4 Document Number 8114 Rev. 1.6, 28-Nov-6
Ozone Depleting Substances Policy Statement It is the policy of Vishay Semiconductor GmbH to TSAL74 1. Meet all present and future national and international statutory requirements. 2. Regularly and continuously improve the performance of our products, processes, distribution and operating systems with respect to their impact on the health and safety of our employees and the public, as well as their impact on the environment. It is particular concern to control or eliminate releases of those substances into the atmosphere which are known as ozone depleting substances (ODSs). The Montreal Protocol (1987) and its London Amendments (199) intend to severely restrict the use of ODSs and forbid their use within the next ten years. Various national and international initiatives are pressing for an earlier ban on these substances. Vishay Semiconductor GmbH has been able to use its policy of continuous improvements to eliminate the use of ODSs listed in the following documents. 1. Annex A, B and list of transitional substances of the Montreal Protocol and the London Amendments respectively 2. Class I and II ozone depleting substances in the Clean Air Act Amendments of 199 by the Environmental Protection Agency (EPA) in the USA 3. Council Decision 88/54/EEC and 91/69/EEC Annex A, B and C (transitional substances) respectively. Vishay Semiconductor GmbH can certify that our semiconductors are not manufactured with ozone depleting substances and do not contain such substances. We reserve the right to make changes to improve technical design and may do so without further notice. Parameters can vary in different applications. All operating parameters must be validated for each customer application by the customer. Should the buyer use products for any unintended or unauthorized application, the buyer shall indemnify against all claims, costs, damages, and expenses, arising out of, directly or indirectly, any claim of personal damage, injury or death associated with such unintended or unauthorized use. Vishay Semiconductor GmbH, P.O.B. 3535, D-7425 Heilbronn, Germany Document Number 8114 Rev. 1.6, 28-Nov-6 5
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