4N35, 4N36, 4N37
OPTOCOUPLERS
SOES021C – NOVEMBER 1981 – REVISED APRIL 1998
PARAMETER MEASUREMENT INFORMATION
47
Ω
Input
Output
(see Note B)
+
–
VCC = 10 V
RL = 100
Ω
0V
ton
90%
10%
Output
toff
Input
TEST CIRCUIT
VOLTAGE WAVEFORMS
NOTES: A. The input waveform is supplied by a generator with the following characteristics: ZO = 50
Ω,
tr
≤
15 ns, duty cycle
1%,
tw = 100
µs.
B. The output waveform is monitored on an oscilloscope with the following characteristics: tr
≤
12 ns, Rin
≥
1 MΩ, Cin
≤
20 pF.
Figure 1. Switching Times
TYPICAL CHARACTERISTICS
TRANSISTOR STATIC FORWARD
CURRENT TRANSFER RATIO (NORMALIZED)
vs
ON-STATE COLLECTOR CURRENT
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
0.1
Normalized to 1 V
at IC = 1 mA
0.2
0.4
1
2
4
10
20
40
100
VCE = 5 V
IF = 0
TA = 25°C
10,000
I C(off) – Off-State Collector Current – nA
4,000
1,000
400
100
40
10
4
1
0.4
0.1
0
10
20 30 40 50 60 70 80
TA – Free-Air Temperature –
°C
90 100
VCE = 10 V
IB = 0
IF = 0
Transistor Static Forward Current Transfer Ratio (Normalized)
OFF-STATE COLLECTOR CURRENT
vs
FREE-AIR TEMPERATURE
IC(on) – On-State Collector Current – mA
Figure 2
Figure 3
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•
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