FOD0708_0604 Datasheet, PDF (7/11 Pages) Fairchild Semiconductor – Single/Dual Channel CMOS Optocoupler

Pulse Gen.
tf = tr = 5 ns
ZO = 50 Ω
1
IF
2
Input
Monitor
3
Node
RIN ⁴
Vcc
Pulse Gen.
ZO = 50 Ω
tf = tr = 5 ns
IF
8
Input
7
0.1µF
Monitoring
Output
Node
6
Monitoring
Node
RIN
5
Test Circuit for FOD0708
I_F = 12mA
Vcc
Input
50%
1
8
t _PHL
Output
2
7
Monitoring
Node
t_PLH
3
6
0.1µF
Bypass
90%
90%
4
5
Output
10%
t_f
10%
2.5V CMOS
V_OL
t_r
Test Circuit for FOD0738
Waveforms
Fig. 10 Test Circuit and Waveforms for t_PLH, t_PHL, t_r and t_f.
1
I_F
A
2
B
V_FF
3
V_CC
8
7 0.1µF
bypass
6
4
5
GND
V_CM
Pulse Gen
Test Circuit for FOD0708
VCM
0V
+5V
Output
(V_O)
I_F
B
A
V_FF
Peak
Dual Channel
1
8
2
7
3
6
4
5
V_CM
+–
Pulse
Generator
ZO = 50Ω
Test Circuit for FOD0738
+5V
0.1µF
Bypass
Output V_O
Monitoring
Node
VOH
Switching Pos. (A), I_F= 0
VO
VO (Min)
CM H
VO (Max)
VO
Switching Pos. (B), I_F = 12 mA
VOL
CM L
Fig. 11 Test Circuit Common Mode Transient Immunity
(FOD0708 and FOD0738)
7
FOD0708/FOD0738 Rev. 1.0.7
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