IS420, IS421, IS422, IS423
OPTICALLY COUPLED BILATERAL
SWITCH LIGHT ACTIVATED ZERO
VOLTAGE CROSSING TRIAC
APPROVALS
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UL recognised, File No. E91231
2.54
7.0
6.0
Dimensions in mm
1
2
3
7.62
13°
Max
0.26
6
5
4
DESCRIPTION
The IS42_ Series are optically coupled
isolators consisting of a Gallium Arsenide
infrared emitting diode coupled with a monolithic
silicon detector performing the functions of a
zero crossing bilateral triac mounted in a stand-
ard 6 pin dual-in-line package.
FEATURES
l
1.2
7.62
6.62
4.0
3.0
0.5
0.5
3.35
3.0
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l
l
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Options :-
10mm lead spread - add G after part no.
Surface mount - add SM after part no.
Tape&reel - add SMT&R after part no.
High Isolation Voltage (5.3kV
RMS
,7.5kV
PK
)
Zero Voltage Crossing
400V Peak Blocking Voltage
All electrical parameters 100% tested
Custom electrical selections available
ABSOLUTE MAXIMUM RATINGS
(25 °C unless otherwise noted)
Storage Temperature
-40
0
C - +150
0
C
Operating Temperature
-40
0
C - +100
0
C
Lead Soldering Temperature
260
0
C
(1.6mm from case for 10 seconds)
Input-to-output Isolation Voltage (Pk) 7500 Vac
(60 Hz , 1sec. duration)
INPUT DIODE
Forward Current
50mA
Reverse Voltage
6V
Power Dissipation
120mW
0
0
(derate linearly 1.41mW/ C above 25 C)
OUTPUT PHOTO TRIAC
Off-State Output Terminal Voltage
400V
RMS Forward Current
100mA
Forward Current (Peak)
1.2A
Power Dissipation
150mW
0
0
(derate linearly 1.76mW/ C above 25 C)
POWER DISSIPATION
Total Power Dissipation
250mW
0
0
(derate linearly 2.94mW/ C above 25 C)
APPLICATIONS
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CRTs
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Power Triac Driver
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Motors
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Consumer appliances
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Printers
SURFACE MOUNT
OPTION SM
OPTION G
7.62
1.2
0.6
10.2
9.5
1.4
0.9
0.26
10.16
ISOCOM COMPONENTS LTD
Unit 25B, Park View Road West,
Park View Industrial Estate, Brenda Road
Hartlepool, Cleveland, TS25 1YD
Tel: (01429) 863609 Fax :(01429) 863581
28/7/98
ISOCOM INC
720 E., Park Boulevard, Suite 104,
Plano, TX 75074 USA
Tel: (972) 423-5521
Fax: (972) 422-4549
DB92610-AAS/A2
ELECTRICAL CHARACTERISTICS ( T
A
= 25°C Unless otherwise noted )
PARAMETER
Input
Forward Voltage (V
F
)
Reverse Current (I
R
)
Peak Off-state Current ( I
DRM
)
Peak Blocking Voltage
( V
DRM
)
On-state Voltage ( V
TM
)
Critical rate of rise of
off-state Voltage ( dv/dt )
Coupled
Input Current to Trigger ( I
FT
)(note 2 )
IS420
IS421
IS422
IS423
Holding Current , either direction ( I
H
)
Input to Output Isolation Voltage V
ISO
Zero
Crossing
Charact-
-eristic
Inhibit Voltage ( V
IH
)
100
5300
7500
35
400
1.8
3.0
MIN TYP MAX UNITS
1.2
1.5
100
300
V
µA
nA
V
V
TEST CONDITION
I
F
V
R
= 30mA
= 6V
Output
V
DRM
= 400V (note 1 )
I
DRM
= 300nA
I
TM
= 100mA(peak)
100
V/µs
30
15
10
7
mA
mA
mA
mA
µA
V
RMS
V
PK
V
V
TM
= 3V ( note 2 )
See note 3
See note 3
I
F
= Rated I
FT
MT1-MT2 Voltage
above which device
will not trigger
I
F
= Rated I
FT
V
DRM
= 400V off-state
Leakage in Inhibited State ( I
S
)
500
µA
Note 1. Test voltage must be applied within dv/dt rating.
Note 2. Guaranteed to trigger at an I
F
value less than or equal to max. I
FT
, recommended I
F
lies
between Rated I
FT
and absolute max. I
FT
.
Note 3. Measured with input leads shorted together and output leads shorted together.
28/7/98
DB92610-AAS/A2
Normalised repetitive peak off-state voltage ( V )
RMS On-state Current vs. Ambient Temperature
Normalised Repetitive Peak Off-state
Voltage vs. Ambient Temperature
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
-30
0
25
50
75
100
Ambient temperature T
A
( °C )
On-state Voltage vs. Ambient Temperature
2.8
2.4
Normalised
to T
A
= 25°C
RMS on-state current I
T
(Arms)
0.1
0.05
0
-30
0
25
50
75
100
125
Ambient temperature T
A
( °C )
Forward Current vs. Ambient Temperature
60
50
Forward current I
F
(mA)
On-state voltage V
TM
(V)
2.0
1.6
1.2
0.8
0.4
0
40
30
20
10
0
-30
0
25
50
75
100
125
Ambient temperature T
A
( °C )
Normalised Input Trigger Current
vs. Ambient Temperature
-30
0
25
50
75
100
Ambient temperature T
A
( °C )
On-state Current vs. On-state Voltage
100
On-state current I
TM
(mA)
80
60
I
F
= 20mA
T
A
= 25°C
Normalised input trigger current ( I
FT
)
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
-30
0
25
50
75
100
Ambient temperature T
A
( °C )
Normalised
to T
A
= 25°C
40
20
0
0
0.4
0.8
1.2
1.6
2.0
On-state voltage V
TM
(V)
DB92610-AAS/A2
28/7/98
