Document
TSHA440.
Vishay Telefunken
GaAlAs Infrared Emitting Diodes in ø 3 mm (T–1) Package
Description
The TSHA44..series are high efficiency infrared emitting diodes in GaAlAs on GaAlAs technology, molded in a clear, untinted plastic package. In comparison with the standard GaAs on GaAs technology these high intensity emitters feature about 50 % radiant power improvement.
94 8398
Features
D Extra high radiant power D High radiant intensity for long transmission distance
D Suitable for high pulse current operation D Standard T–1(ø 3 mm) package for low space
application
D D D D
Angle of half intensity ϕ = ± 20° Peak wavelength lp = 875 nm High reliability Good spectral matching to Si photodetectors
Applications
Infrared remote control and free air transmission systems with high power requirements in combination with PIN photodiodes or phototransistors. Because of the very low radiance absorption in glass at the wavelength of 875 nm, this emitter series is also suitable for systems with panes in the transmission range between emitter and detector.
Absolute Maximum Ratings
Tamb = 25_C Parameter Reverse Voltage Forward Current Peak Forward Current Surge Forward Current Power Dissipation Junction Temperature Operating Temperature Range Storage Temperature Range Soldering Temperature Thermal Resistance Junction/Ambient Test Conditions Symbol VR IF IFM IFSM PV Tj Tamb Tstg Tsd RthJA Value 5 100 200 2 180 100 –55...+100 –55...+100 260 450 Unit V mA mA A mW °C °C °C °C K/W
tp/T = 0.5, tp = 100 ms tp = 100 ms
t
x 5sec, 2 mm from case
Document Number 81017 Rev. 2, 20-May-99
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TSHA440.
Vishay Telefunken Basic Characteristics
Tamb = 25_C Parameter Forward Voltage g Temp. Coefficient of VF Reverse Current Junction Capacitance Temp. Coefficient of fe Angle of Half Intensity Peak Wavelength Spectral Bandwidth Temp. Coefficient of lp Rise Time Fall Time Test Conditions IF = 100 mA, tp = 20 ms IF = 1.5 A, tp = 100 ms IF = 100mA VR = 5 V VR = 0 V, f = 1 MHz, E = 0 IF = 100 mA IF = 100 mA IF = 100 mA IF = 100 mA IF = 100 mA IF = 1.5 A IF = 100 mA IF = 1.5 A Symbol VF VF TKVF IR Cj TKfe ϕ Min Typ 1.5 3.2 –1.6 20 –0.7 ±20 875 80 0.2 600 300 600 300 Max 1.8 4.9 100 Unit V V mV/K mA pF %/K deg nm nm nm/K ns ns ns ns
TKlp tr tr tf tf
lp Dl
Type Dedicated Characteristics
Tamb = 25_C Parameter Radiant Intensity y Test Conditions IF=100mA, tp=20ms IF=1.5A, tp=100ms Radiant Power IF=100mA, tp=20ms Type TSHA4400 TSHA4401 TSHA4400 TSHA4401 TSHA4400 TSHA4401 Symbol Ie Ie Ie Ie Min 12 16 140 190 Typ 20 30 240 360 20 24 Max Unit mW/sr mW/sr mW/sr mW/sr mW mW
fe fe
Typical Characteristics (Tamb = 25_C unless otherwise specified)
250 PV – Power Dissipation ( mW ) 200 IF – Forward Current ( mA ) 100
94 7941 e
125 100
150 RthJA 100
75 50
50 0 0 20 40 60 80
25 0 0 20 40 60 80 100
12789
Tamb – Ambient Temperature ( °C )
Tamb – Ambient Temperature ( °C )
Figure 1. Power Dissipation vs. Ambient Temperature
Figure 2. Forward Current vs. Ambient Temperature
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Document Number 81017 Rev. 2, 20-May-99
TSHA440.
Vishay Telefunken
101 I e – Radiant Intensity ( mW/sr ) I F – Forward Current ( A ) 1000 TSHA 4401 100 TSHA 4400 10
tp / T = 0.01, IFM = 2 A 0.02 100 0.05 0.1 0.2 0.5 10–1 10–2
1 10–1 100 101 tp – Pulse Duration ( ms ) 102
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100
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101 102 103 IF – Forward Current ( mA )
104
Figure 3. Pulse Forward Current vs. Pulse Duration
104 IF – Forward Current ( mA )
Figure 6. Radiant Intensity vs. Forward Current
1000
Fe – Radiant Power ( mW )
2 3 4
103
tp = 100 ms tp / T = 0.001
100
10
102
1
101 0
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0.1 1 100
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VF – Forward Voltage ( V )
101 102 103 IF – Forward Current ( mA )
104
Figure 4. Forward Current vs. Forward Voltage
1.2 V Frel – Relative Forward Voltage 1.1 I e rel ; Fe rel IF = 10 mA 1.0 0.9
Figure 7. Radiant Power vs. Forward Current
1.6
1.2 IF = 20 mA 0.8
0.4 0.8 0.7 0 20 40 60 80 100
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0 –10 0 10
50
100
140
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Tamb – Ambient Temperature ( °C )
Tamb – Ambient Temperature ( °C )
Figure 5. Relative Forward Voltage vs. Ambient Temperature
Figure 8. Rel. Radiant Intensity\Power vs. Ambient Temperature
Document Number 81017 Rev. 2, 20-May-99
www.vishay.de • FaxBack +1-408-970-5600 3 (5)
TSHA440.
Vishay Telefunken
1.25 1.0 I e rel – Relative Radiant Intensity 0° 10 ° 20 ° 30°
Fe – Relative Radiant Power
40° 1.0 0.9 0.8 0.7 50° 60° 70° 80° 0.6 0.4 0.2 0 0.2 0.4 0.6
0.75 0.5
0.25 0 780 IF = 100 mA Fe ( l ) rel = Fe ( l ) / Fe ( lp )
94 8000 e
l – Wavelength ( nm )
880
980
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Figure 9. Relative Radiant Power vs. Wavelength
Figure 10. Relative Radiant Intensity vs. Angular Displacement
Dimensions in mm
95 10951
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Document Number 81017 Rev. 2, 20-May-99
TSHA440.
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