TCST5250 datasheet(3/7 Pages) VISHAY

Part #	TCST5250

Description	Transmissive Optical Sensor with Phototransistor Output

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Manufacturer	VISHAY [Vishay Siliconix]

Direct Link	http://www.vishay.com

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Document Number: 83787

For technical questions, contact: sensorstechsupport@vishay.com

www.vishay.com

Rev. 1.5, 17-Aug-09

3

TCST5250

Transmissive Optical Sensor with

Phototransistor Output

Vishay Semiconductors

Fig. 2 - Test Circuit for ton and toff

Fig. 3 - Switching Times

BASIC CHARACTERISTICS

Tamb = 25 °C, unless otherwise specified

Fig. 4 - Forward Current vs. Forward Voltage

Fig. 5 - Relative Current Transfer Ratio vs. Ambient Temperature

Fig. 6 - Collector Dark Current vs. Ambient Temperature

Fig. 7 - Collector Current vs. Forward Current

Channel I

Channel II

20223

+ 5 V

IC = 1 mA; adjusted by I

IF

0

IF

RG = 50 Ω

tp

t p

T

= 0.01

Oscilloscope

R

1 M

Ω

L ≥

CL

≤ 20 pF

50

Ω

100

Ω

= 50 µs

F

t p

t

0

10 %

90 %

100 %

t r

t d

t on

t s

t f

t off

I F

IC

tp

Pulse duration

td

Delay time

tr

Rise time

ton (= td + tr)

Turn-on time

ts

Storage time

t f

Fall time

t

off (= ts + tf)Turn-off time

96 11698

0.1

1

10

100

1000

0

V

F - Forward Voltage (V)

96 11862

1.6

0.2

1.4

1.2

1.0

0.8

0.6

0.4

2.0

1.8

- 25

0

0.5

1.0

1.5

2.0

Tamb - Ambient Temperature (°C)

95 11089

VCE = 5 V

IF = 20 mA

100

75

50

25

0

1

10

100

1000

10 000

Tamb - Ambient Temperature (°C)

95 11090

VCE = 25 V

IF = 0 A

100

75

50

25

0.1

0.001

0.01

0.1

10

IF - Forward Current (mA)

95 11083

1

VCE = 10 V

100

10

1

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