TSOP21 datasheet(3/8 Pages) VISHAY

3 / 8 page

TSOP21..MQ1

Document Number 82249

Rev. 1.1, 31-Jan-05

Vishay Semiconductors

www.vishay.com

Typical Characteristics (Tamb = 25

°C unless otherwise specified)

Figure 1. Output Function

Figure 2. Pulse Length and Sensitivity in Dark Ambient

Figure 3. Output Function

tpi *)

VOH

VOL

tpo2)

14337

Optical Test Signal

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

Output Signal

td1)

1) 3/f0 < td < 9/f0

tpi – 4/f0 < tpo < tpi + 6/f0

*) tpi w 6/fo is recommended for optimal function

0.00

0.05

0.10

0.15

0.20

0.25

0.30

0.35

0.1

1.0

10.0

100.0 1000.010000.0

Ee – Irradiance ( mW/m2 )

16907

Input Burst Duration

l = 950 nm,

optical test signal, fig.1

Output Pulse

VOH

VOL

600

T = 60 ms

Ton

Toff

94 8134

Optical Test Signal

Output Signal, ( see Fig.4 )

Figure 4. Output Pulse Diagram

Figure 5. Frequency Dependence of Responsivity

Figure 6. Sensitivity in Bright Ambient

0.0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

0.1

1.0

10.0

100.0 1000.010000.0

Ee – Irradiance ( mW/m2 )

16910

Toff

l = 950 nm,

optical test signal, fig.3

Ton

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 = f0"5%

Df ( 3dB ) = f0/7

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

0.01

0.10

1.00

10.00

100.00

E – Ambient DC Irradiance (W/m2)

16911

Correlation with ambient light sources:

10W/m2

^1.4klx (Std.illum.A,T=2855K)

10W/m2

^8.2klx (Daylight,T=5900K)

Ambient,

l = 950 nm

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