Datasheet

www.vishay.com For technical questions, contact: [e-mail]
Document Number: 81865
4 Rev. 1.2, 15-Feb-11
4N32, 4N33
Vishay Semiconductors
Optocoupler, Photodarlington
Output, High Gain, with Base
Connection
Fig. 3 - Normalized Collector Base Photocurrent vs.
LED Current
Fig. 4 - Non-Saturated and Saturated h
FE
vs.
Base Current
Fig. 5 - Low to High Propagation Delay vs.
Collector Load Resistance and LED Current
Fig. 6 - High to Low Propagation Delay vs.
Collector Load Resistance and LED Current
Fig. 7 - Switching Waveform and Switching Schematic
i4n32-33_04
0.1 1 10 100
0.001
0.01
0.1
1
10
I
F
= LED Current (mA)
NI
CB
- Normalized I
CB
V
CB
= 3.5 V
I
F
= 10 mA
T
A
= 25 °C
Normalized to:
i4n32-33_05
0.01 0.1 1 10 100
0
2000
4000
6000
8000
10 000
V
CE
= 5 V
V
CE
= 1 V
I
b
- Base Current (µA)
h
FE
- Forward Transfer Gain
T
A
= 25 °C
i4n32-33_06
0101520
0
20
40
60
80
T
A
= 25 °C, V
CC
= 5 V
V
TH
= 1.5 V
I
F
- LED Current (mA)
t
pLH
- Low/High Propagation
Delay (µs)
1 kΩ
5
220 Ω
470 Ω
100 Ω
i4n32-33_07
0101520
0
5
10
15
20
I
F
- LED Current (mA)
T
A
= 25 °C
V
CC
= 5 V
V
TH
= 1.5 V
t
pHL
- High/Low Propagation
Delay (µs)
1 kΩ
100 Ω
5
i4n32-33_08
I
F
t
R
V
O
t
D
t
S
t
F
t
PHL
t
PLH
V
TH
= 1.5 V
R
L
V
CC
I
F
V
O