Document Number: 83532 For technical questions, contact: optocoupleranswers@vishay.com
www.vishay.com
Rev. 1.7, 28-Oct-09 795
TCDT1120, TCDT1120G
Optocoupler, Phototransistor Output
Vishay Semiconductors
Fig. 11 - Collector Current vs. Collector Emitter Voltage
Fig. 12 - Collector Emitter Saturation Voltage vs. Collector Current
Fig. 13 - Current Transfer Ratio vs. Forward Current
Fig. 14 - Current Transfer Ratio vs. Forward Current
Fig. 15 - Current Transfer Ratio vs. Forward Current
Fig. 16 - Turn-on/off Time vs. Forward Current
0.1 1 10
0.1
1
10
100
V
CE
- Collector Emitter Voltage (V)
100
95 11041
I - Collector Current (mA)
C
5 mA
2 mA
1 mA
I
F
= 50 mA
20 mA
10 mA
CNY75A
110
0
0.2
0.4
0.6
0.8
1.0
V - Collector Emitter
CEsat
I
C
- Collector Current (mA)
100
CTR = 50 % used
95 11034
CNY75A used
Saturation Voltage (V)
20 % used
10 % used
0.1 1 10
1
10
100
1000
CTR - Current Transfer Ratio (%)
I
F
- Forward Current (mA)
100
14796
TCDT1122(G)
V
CE
= 5 V
0.1 1 10
1
10
100
1000
CTR - CurrentTransfer Ratio (%)
I
F
- Forward Current (mA)
100
14797
TCDT1123(G)
V
CE
= 5 V
0.1 1 10
1
10
100
1000
CTR - Current Transfer Ratio (%)
I
F
- Forward Current (mA)
100
14798
TCDT1124(G)
V
CE
= 5 V
0 5 10 15
0
10
20
30
40
50
I
F
- Forward Current (mA)
20
14799
t / t - Turn-on/Turn-off Time (µs)
offon
TCDT1122(G)
Saturated Operation
V
S
= 5 V
R
L
=1 kΩ
t
off
t
on
