
5
SN SERIES
3 V DD
4 OUT
5 GND
1(~)
Input
terminal
Photo-transistor coupler
Input
Circuit
Buffer
Circuit
AC Imput
Circuit
Condenser
Input
terminal
3 V DD
4 OUT
5 GND
2(~)
1 (+/–)
2 (+/–)
(
)
Buffer
Circuit
Output
terminal
Output
terminal
Photo-transistor coupler
n
BLOCK DIAGRAM
INPUT MODULE
OUTPUT MODULE
LOAD
INSULATION CIRCUITS
Input/Output waveform
(resistive load)
Photo-transistor
coupler
DCLogic
output
Photo-transistor
coupler
LOAD
INSULATIONCIRCUITS
Input/Output waveform
(resistive load)
AC
Photo-triac
coupler
DC
Photo-transistor
coupler
n
CHARACTERISTIC DATA
OUTPUT MODULE
ON
OFF
“H”
“L”
Input signal
Output signal
“H”
“L”
ON
OFF
Input signal
Output signal
3+
Input
terminal
Input
circuit
Photo-triac coupler
Photo-transistor coupler
Input
circuit
4–
3+
Input
terminal
Output
terminal
Output
terminal
4–
Trigger
circuit
Drive
circuit
Snubber circuit
Varistor
Output transistor
Inverse connection protecting diode
1
2
~
+1
–2
ON
OFF
Source voltage
of load
Input signal
Load current
ON
OFF
Input signal
Load current
*ACtypewithoutvaristor/DCtypewithzenordiodeavailable.