Fairchild AC/DC to Logic Interface Optocoupler HCPL-3700 - Manual (Page 7)

HCPL-3700 A
C/DC to Logic Interface Optocoupler
©2005 Fairchild Semiconductor Corporation www.fairchildsemi.com
HCPL-3700 Rev. 1.0.1 7
5
6
7
8
3
4
2
1
Z = 50
tr = 5ns
Generator
Pulse
O
Ω
.1uf
bypass
O (V )
+5V
R
L
Output PHL
t
PLH
t
5V
2.5V
IN (V )
Input
(V )
Output
O
1.5 V
90%
AC
DC+
DC-
AC GND
V
V
O
CC
AC
DC-
DC+
AC
4
3
2
1
Output
O
GND
V
5
6
(V )
R bypass
.1uf
CC V
7
8
L
O
V
FF
I IN
A
B
+5V
C **
L
* SEE NOTE 8
R * CC
+
Pulse Gen
CM
V
-
** C IS 30 pF, WHICH INCLUDES PROBE
AND STRAY WIRING CAPACITANCE
L
90%
10% 10%
r t t f
0V
V O
OL V
Switching Pos. (A)
I = 0 mA
V O
V CM
Switching Pos. (B)
I = 3.11 mA
V (Max)
V (Min) O
O
IN
IN
CM L
H
O V V OL
CM V
V CM L
H CM 5V
5V
V
Pulse Amplitude = 50 V
Pulse Width = 1 ms
f = 100 Hz
T = T = 1.0
µs (10 - 90%)
IN
r f
Fig. 9. Switching Test Circuit
Fig. 10. Test Circuit for Common Mode Transient Immunity and Typical Waveforms