TSOP373.., TSOP375..
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Vishay Semiconductors
Rev. 1.5, 25-Feb-14
3
Document Number: 82446
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
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Fig. 3 - Output Function
Fig. 4 - Output Pulse Diagram
Fig. 5 - Frequency Dependance of Responsivity
Fig. 6 - Sensitivity in Bright Ambient
Fig. 7 - Sensitivity vs. Supply Voltage Disturbances
Fig. 8 - Max. Envelope Duty Cycle vs. Burst Length
E
e
t
V
O
V
OH
V
OL
t
600 µs
600 µs
t = 60 ms
t
on
t
off
94 8134
Optical Test Signal
Output Signal
, (see fig. 4)
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.1
1
10
100
1000
10 000
E
e
- Irradiance (mW/m
2
)
T
on
, T
off
- Output Pulse Width (ms)
20759
λ
= 950 nm,
Optical Test Signal, Fig. 3
T
on
T
off
0.0
0.2
0.4
0.6
0.8
1.0
1.2
0.7
0.9
1.1
1.3
f/f
0
- Relative Frequency
16925
f = f
0
± 5 %
Δ
f(3 dB) = f
0
/10
E /E - Rel. Responsivity
e min.
e
0
0.5
1
1.5
2
2.5
3
3.5
4
0.01
0.1
1
10
100
E
e
- Ambient DC Irradiance (W/m
2
)
E
e min.
- Threshold Irradiance (mW/m
2
)
Correlation with Ambient Light Sources:
10 W/m
2
= 1.4 kLx (Std. illum. A, T = 2855 K)
10 W/m
2
= 8.2 kLx (Daylight, T = 5900 K)
Wavelength of Ambient
Illumination:
λ
= 950 nm
20757
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1
10
100
1000
Vs
RMS
- AC Voltage on DC Supply Voltage (mV)
20753
E
e min.
- Threshold Irradiance (mW/m
2
)
f = f
o
f = 20 kHz
f = 30 kHz
f = 100 Hz
f = 10 kHz
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
0
20
40
60
80
100
120
Burst Length (number of cycles/burst)
Max. Envelope Duty Cycle
f = 38 kHz, E
e
= 2 mW/m²
TSOP375..
TSOP373..
