MCA230X, MCA231X, MCA255X
MCA230, MCA231, MCA255
OPTICALLY COUPLED ISOLATOR
PHOTODARLINGTON OUTPUT
APPROVALS
l
2.54
6.4
6.2
1.54
8.8
8.4
1
2
3
Dimensions in mm
UL recognised, File No. E91231
-
'X' SPECIFICATION APPROVALS
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VDE 0884 in 2 available lead form :
- STD
- G form
VDE 0884 inSMD approval pending
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SETI approved, reg. no.151786-18
DESCRIPTION
The MCA230, MCA231, MCA255 series of
optically coupled isolators consist of an infrared
light emitting diode and NPN silicon
photodarlington in a space efficient dual in line
plastic package.
FEATURES
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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.
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High Current Transfer Ratio
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High Isolation Voltage (5.3kV
RMS
,7.5kV
PK
)
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All electrical parameters 100% tested
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Custom electrical selections available
APPLICATIONS
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Computer terminals
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Industrial systems controllers
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Measuring instruments
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Signal transmission between systems of
different potentials and impedances
OPTION SM
SURFACE MOUNT
OPTION G
6
5
4
4.3
4.1
0.5
0.3
7.8
7.4
0.5
3.3
9.6
8.4
ABSOLUTE MAXIMUM RATINGS
(25°C unless otherwise specified)
Storage Temperature
-55°C to + 150°C
Operating Temperature
-55°C to + 100°C
Lead Soldering Temperature
(1/16 inch (1.6mm) from case for 10 secs) 260°C
INPUT DIODE
Forward Current
Reverse Voltage
Power Dissipation
OUTPUT TRANSISTOR
Collector-emitter Voltage BV
CEO
MCA255
MCA230, MCA231
Collector-base Voltage BV
CBO
MCA255
MCA230, MCA231
Emitter-collector Voltage BV
ECO
Power Dissipation
POWER DISSIPATION
55V
30V
55V
30V
7V
150mW
60mA
5V
105mW
5.08
max.
1.2
0.6
1.4
0.9
0.26
10.16
10.2
9.5
Total Power Dissipation
250mW
(derate linearly 3.3mW/°C above 25°C)
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
7/12/00
DB92189-AAS/A2
ELECTRICAL CHARACTERISTICS ( T
A
= 25°C Unless otherwise noted )
PARAMETER
Input
Forward Voltage (V
F
)
Reverse Voltage (V
R
)
Reverse Current (I
R
)
Collector-emitter Breakdown (BV
CEO
)
MCA230, MCA231
MCA255
Collector-base Breakdown (BV
CBO
)
MCA230, MCA231
MCA255
Emitter-collector Breakdown (BV
ECO
)
Collector-emitter Dark Current (I
CEO
)
MIN TYP MAX UNITS
1.2
3
10
1.5
V
V
µ
A
V
V
V
V
V
nA
TEST CONDITION
I
F
= 20mA
I
R
= 10
µ
A
V
R
= 3V
I
C
= 100
µ
A (note 2)
I
C
= 100
µ
A (note 2)
I
C
= 10
µ
A (note 2)
I
C
= 10
µ
A (note 2)
I
E
= 10
µ
A
V
CE
= 10V
10mA I
F
, 5V V
CE
10mA I
F
, 5V V
CE
50mA I
F
, 50mA I
C
1mA I
F
, 2mA I
C
5mA I
F
, 10mA I
C
10mA I
F
, 50mA I
C
(note 1)
(note 1)
V
IO
= 500V (note 1)
V
CC
= 2V,R
L
= 100
Ω,
I
F
= 10mA , fig.1
Output
30
55
30
55
5
100
Coupled
Collector Output Current ( I
C
) (Note 2
)
MCA230, MCA255
100
MCA231
200
Collector-emitter Saturation VoltageV
CE(SAT)
MCA230, MCA255
MCA231
%
%
1.0
1.0
1.0
1.2
V
V
V
V
V
RMS
V
PK
Ω
µ
s
µ
s
Input to Output Isolation Voltage V
ISO
Input-output Isolation Resistance R
ISO
Output Turn on Time
ton
Output Turn off Time
toff
5300
7500
5x10
10
10
100
Note 1
Note 2
Measured with input leads shorted together and output leads shorted together.
Special Selections are available on request. Please consult the factory.
FIGURE 1
V
CC
= 10V
Input
I
F
= 10mA
100
Ω
t
on
t
r
Input
Output
Output
10%
90%
10%
90%
t
off
t
f
7/12/00
DB92189-AAS/A2
Collector Power Dissipation vs. Ambient Temperature
200
Collector power dissipation P
C
(mW)
Current transfer ratio CTR (%)
10000
5000
1000
800
500
100
50
10
Current Transfer Ratio vs.
Forward Current
150
100
50
V
CE
= 5V
T
A
= 25°C
0
-30
0
25
50
75
100
125
Ambient temperature T
A
( °C )
Forward Current vs. Ambient Temperature
100
0
0.1 0.2 0.5
1
2
5
10 20 50 100
Forward current I
F
(mA)
Collector Current vs. Collector-emitter Voltage
100
50mA
20
Collector current I
C
(mA)
80
60
40
2mA
20
0
-30
0
25
50
75
100
125
0
1
2
3
4
5
Ambient temperature T
A
( °C )
Collector-emitter Saturation
Voltage vs. Ambient Temperature
Collector-emitter voltage V
CE
( V )
Relative Current Transfer Ratio
vs. Ambient Temperature
1.5
Relative current transfer ratio
I
F
= 1mA
10mA
5mA
T
A
= 25°C
80
Forward current I
F
(mA)
CE(SAT)
60
40
20
0
(V)
1.2
1.0
0.8
0.6
0.4
0.2
0
-30
Collector-emitter saturation voltage V
I
F
= 50mA
I
C
= 50mA
I
F
= 10mA
V
CE
= 5V
1.0
0.5
0
0
25
50
75
100
-30
Ambient temperature T
A
( °C )
0
25
50
75
Ambient temperature T
A
( °C )
100
7/12/00
DB92189-AAS/A2
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