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
ISOCOM INC
720 E., Park Boulevard, Suite 104,
Plano, TX 75074 USA
Tel: (972) 423-5521
Fax: (972) 422-4549
28/7/98 DB92610-AAS/A2
0.26
0.5
Dimensions in mm
10.16
7.0
6.0
1.2
7.62
3.0
13°
Max
3.35
4.0
3.0
10.2
9.5
2.54
0.26
7.62
6.62
1.2
0.6 1.4
0.9
0.5
1
34
6
25
OPTION G
7.62
SURFACE MOUNT
OPTION SM
OPTICALLY COUPLED BILA TERAL
SWITCH LIGHT ACTIVATED ZERO
V OLTAGE CROSSING TRIAC
IS420, IS421, IS422, IS423
APPROVALS
lUL recognised, File No. E91231
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
lOptions :-
10mm lead spread - add G after part no.
Surface mount - add SM after part no.
Tape&reel - add SMT&R after part no.
lHigh Isolation Voltage (5.3kVRMS ,7.5kVPK )
lZero Voltage Crossing
l400V Peak Blocking V oltage
lAll electrical parameters 100% tested
lCustom electrical selections available
APPLICATIONS
lCRTs
lPower Triac Driver
lMotors
lConsumer appliances
lPrinters
ABSOLUTE MAXIMUM RATINGS
(25 °C unless otherwise noted)
Storage Temperature -400C - +1500C
Operating Temperature -400C - +1000C
Lead Soldering Temperature 2600C
(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
(derate linearly 1.41mW/0C above 250C)
OUTPUT PHOTO TRIAC
Off-State Output Terminal V oltage 400V
RMS Forward Current 100mA
Forward Current (Peak) 1.2A
Power Dissipation 150mW
(derate linearly 1.76mW/0C above 250C)
POWER DISSIPATION
Total Power Dissipation 250mW
(derate linearly 2.94mW/0C above 250C)
DB92610-AAS/A2
28/7/98
PARAMETER MIN TYP MAX UNITS TEST CONDITION
ELECTRICAL CHARACTERISTICS ( TA = 25°C Unless otherwise noted )
Input Forward V oltage (VF) 1.2 1.5 V IF= 30mA
Reverse Current (IR) 100 µAV
R = 6V
Output Peak Off-state Current ( IDRM ) 300 nA VDRM = 400V (note 1 )
Peak Blocking Voltage ( VDRM ) 400 V IDRM = 300nA
On-state Voltage ( VTM ) 1.8 3.0 V ITM = 100mA(peak)
Critical rate of rise of
of f-state Voltage ( dv/dt ) 100 V/µs
Coupled Input Current to Trigger ( IFT )(note 2 )
IS420 30 mA VTM = 3V ( note 2 )
IS421 15 mA
IS422 10 mA
IS423 7 mA
Holding Current , either direction ( IH ) 100 µA
Input to Output Isolation Voltage VISO 5300 VRMS See note 3
7500 VPK See note 3
Zero Inhibit V oltage ( VIH )35VI
F= Rated IFT
Crossing MT1-MT2 V oltage
Charact- above which device
-eristic will not trigger
Leakage in Inhibited State ( IS ) 500 µAI
F= Rated IFT
VDRM = 400V off-state
Note 1. Test voltage must be applied within dv/dt rating.
Note 2. Guaranteed to trigger at an IF value less than or equal to max. IFT , recommended IF lies
between Rated IFT and absolute max. IFT .
Note 3. Measured with input leads shorted together and output leads shorted together.
DB92610-AAS/A2
28/7/98
0.05
-30 0 25 50 75 100 125
Ambient temperature TA ( °C )
0
Ambient temperature TA ( °C )
RMS on-state current IT (Arms)
60
30
20
10
0
40
50
-30 0 25 50 75 100 125
RMS On-state Current vs. Ambient Temperature
Forward Current vs. Ambient Temperature
-30 0 25 50 75 100
Ambient temperature TA ( °C )
Normalised input trigger current ( IFT )
Normalised Input Trigger Current
vs. Ambient Temperature
0.1
0
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
Forward current IF (mA)
Normalised Repetitive Peak Off-state
Voltage vs. Ambient Temperature
Normalised repetitive peak off-state voltage ( V )
-30 0 25 50 75 100
Ambient temperature TA ( °C )
0.2
0.4
0.6
0.8
1.0
1.2
1.4
0
On-state Voltage vs. Ambient Temperature
On-state voltage VTM (V)
-30 0 25 50 75 100
Ambient temperature TA ( °C )
0.4
0.8
1.2
1.6
2.0
2.4
2.8
Normalised
to TA = 25°C
0
On-state Current vs. On-state Voltage
On-state current ITM (mA)
0 0.4 0.8 1.2 1.6 2.0
On-state voltage VTM (V)
80
60
40
20
100
Normalised
to TA = 25°C IF = 20mA
TA = 25°C
