Datasheet
Document Number: 81147 For technical questions, contact: sensorstechsupport@vishay.com
www.vishay.com
Rev. 1.0, 17-Aug-09 3
TCST2103, TCST2202, TCST2300
Transmissive Optical Sensor with
Phototransistor Output
Vishay Semiconductors
Note
(1)
T
amb
= 25 °C, unless otherwise specified
Fig. 2 - Test Circuit for t
on
and t
off
Fig. 3 - Switching Times
BASIC CHARACTERISTICS
T
amb
= 25 °C, unless otherwise specified
Fig. 4 - Forward Current vs. Forward Voltage Fig. 5 - Relative Current Transfer Ratio vs. Ambient Temperature
INPUT (EMITTER)
Forward voltage I
F
= 60 mA V
F
1.25 1.6 V
Junction capacitance V
R
= 0 V, f = 1 MHz C
j
50 pF
OUTPUT (DETECTOR)
Collector emitter voltage I
C
= 1 mA V
CEO
70 V
Emitter collector voltage I
E
= 10 µA V
ECO
7V
Collector dark current V
CE
= 25 V, I
F
= 0 A, E = 0 lx I
CEO
100 nA
SWITCHING CHARACTERISTICS
Turn-on time
I
C
= 2 mA, V
S
= 5 V,
R
L
= 100 Ω (see figure 2)
t
on
10 µs
Turn-off time
I
C
= 2 mA, V
S
= 5 V,
R
L
= 100 Ω (see figure 2)
t
off
8µs
BASIC CHARACTERISTICS
(1)
PARAMETER TEST CONDITION PART SYMBOL MIN. TYP. MAX. UNIT
Channel I
Channel II
20688
+ 5 V
I
C
adjusted by I
F
I
F
0
I
F
R
G
= 50 Ω
t
p
t
p
= 1 ms
T
= 20
Oscilloscope
50 Ω 100 Ω
R
L
≥ 1 MΩ
C
L
≤ 20 pF
t
p
t
t
0
0
10 %
90 %
100 %
t
r
t
d
t
on
t
s
t
f
t
off
I
F
I
C
t
p
Pulse duration
t
d
Delay time
t
r
Rise time
t
on
(= t
d
+ t
r
) Turn-on time
t
s
Storage time
t
f
Fall time
t
off
(= t
s
+ t
f
)Turn-off time
96 11698
0.1
1
10
100
1000
0
V
F
- Forward Voltage (V)
96 11862
I
F
- Forward Current (mA)
1.6
0.2
1.4
1.2
1.0
0.80.6
0.4
2.0
1.8
- 25
0
0.5
1.0
1.5
2.0
CTR
- Relative Current Transfer Ratio
rel
T
amb
- Ambient Temperature (°C)
95 11089
V
CE
= 5 V
I
F
= 20 mA
100
75
50
25
0