TSDP341.., TSDP343..

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Vishay Semiconductors

Rev. 1.6, 02-Aug-2021

3

Document Number: 82667

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TYPICAL CHARACTERISTICS (Tamb = 25 °C, unless otherwise specified)

Fig. 1 - Output Active Low

Fig. 2 - Pulse Length and Sensitivity in Dark Ambient

Fig. 3 - Output Function

Fig. 4 - Output Pulse Diagram

Fig. 5 - Frequency Dependence of Responsivity

Fig. 6 - Sensitivity in Bright Ambient

Ee

T

tpi *)

t

VO

VOH

VOL

tpo

2)

t

Optical Test Signal

(IR diode TSAL6200, IF = 0.4 A, N = 6 pulses, f = f0, t = 10 ms)

Output Signal

td

1)

1) 3/f

0 < td < 9/f0

2) t

pi - 1/f0 < tpo < tpi + 4/f0

*) tpi ≥ 6/f0 is recommended for optimal function

0.00

0.05

0.10

0.15

0.20

0.25

0.30

0.1

10

1000

100 000

E

e - Irradiance (mW/m

2)

Output pulse width

Input burst length

Optical test signal,

λ = 940 nm,

f = 38 kHz, N = 8 carrier cycles

E e

t

VO

VOH

VOL

t

210 µs

210 µs

t = 60 ms

t on

t off

Optical Test Signal

Output Signal, (see fig. 4)

0

0.1

0.2

0.3

0.4

0.1

10

1000

100 000

E

e - Irradiance (mW/m

2)

t

on

t

off

λ = 940 nm, f = 38 kHz

0.0

0.2

0.4

0.6

0.8

1.0

1.2

0.7

0.9

1.1

1.3

f/f0 - Relative Frequency

16926

f (3 dB) = f0/7

f = f

0 ± 5 %

0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

0.01

0.1

1

10

100

E

e - Ambient DC Irradiance (W/m

2)

Wavelength of ambient

illumination:

λ = 950 nm

Correlation with

ambient light sources:

10 W/m2 = 1.4 klx

(Std. ilum. A, T = 2855 K)

10 W/m2 = 8.2 klx

(Daylight, T = 5900 K)