GENERAL PURPOSE 6-PIN
PHOTOTRANSISTOR OPTOCOUPLERS
4N25
4N37
4N26
H11A1
4N27
H11A2
4N28
H11A3
4N35
H11A4
4N36
H11A5
Fig. 14 Switching Speed vs. Load Resistor
(White Package)
Fig. 13 Switching Speed vs. Load Resistor
(Black Package)
1000
100
10
1000
100
10
I
V
T
= 10 mA
= 10 V
I
V
T
= 10 mA
F
F
= 10 V
CC
CC
= 25°C
= 25°C
A
A
T
off
T
off
T
T
f
f
T
on
r
T
on
1
1
T
T
r
0.1
0.1
0.1
1
10
100
0.1
1
10
100
R-LOAD RESISTOR (kΩ)
R-LOAD RESISTOR (kΩ)
Fig. 15 Normalized t vs. R
on
Fig. 16 Normalized t vs. R
on
BE
BE
(Black Package)
(White Package)
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
V
10 V
= 2 mA
= 100 Ω
V
I
10 V
= 2 mA
= 100 Ω
CC =
CC =
I
C
L
C
R
R
L
10
100
R
1000
- BASE RESISTANCE (k Ω)
BE
10000
100000
10
100
R
1000
10000
100000
- BASE RESISTANCE (k Ω)
BE
Fig. 17 Normalized t vs. R
off
Fig. 18 Normalized t vs. R
off
BE
BE
(Black Package)
(White Package)
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
V
10 V
= 2 mA
= 100 Ω
V
10 V
CC =
= 2 mA
= 100 Ω
CC =
I
I
C
L
C
L
R
R
10
100
1000
10000
100000
10
100
1000
10000
100000
R
- BASE RESISTANCE (k Ω)
R
BE
- BASE RESISTANCE (k Ω)
BE
© 2003 Fairchild Semiconductor Corporation
Page 8 of 15
5/7/03
FAIRCHILD [ FAIRCHILD SEMICONDUCTOR ]
