MCT6, MCT61, MCT62 — Dual Phototransistor Optocouplers
March 2009
MCT6, MCT61, MCT62
Dual Phototransistor Optocouplers
Features
■
Two isolated channels per package
■
Two packages fit into a 16 lead DIP socket
■
Choice of three current transfer ratios
■
Underwriters Laboratory (U.L.) recognized File E90700
Description
The MCT6X Optocouplers have two channels for density
applications. For four channel applications, two-packages
fit into a standard 16-pin DIP socket. Each channel is an
NPN silicon planar phototransistor optically coupled to a
gallium arsenide infrared emitting diode.
Applications
■
AC line/digital logic – isolate high voltage transients
■
Digital logic/digital logic – eliminate spurious grounds
■
Digital logic/AC triac control – isolate high voltage
■
■
■
■
■
transients
Twisted pair line receiver – eliminate ground loop
feedthrough
Telephone/telegraph line receiver – isolate high
voltage transients
High frequency power supply feedback control –
maintain floating grounds and transients
Relay contact monitor – isolate floating grounds and
transients
Power supply monitor – isolate transients
Schematic
Package Outlines
ANODE 1
8 EMITTER
8
1
CATHODE 2
7 COLLECTOR
CATHODE 3
6 COLLECTOR
8
1
8
1
ANODE 4
5 EMITTER
Equivalent Circuit
©2006 Fairchild Semiconductor Corporation
MCT6, MCT61, MCT62 Rev. 1.0.3
www.fairchildsemi.com
MCT6, MCT61, MCT62 — Dual Phototransistor Optocouplers
Absolute Maximum Ratings
Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be
operable above the recommended operating conditions and stressing the parts to these levels is not recommended.
In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability.
The absolute maximum ratings are stress ratings only.
Symbol
TOTAL DEVICE
T
STG
T
OPR
T
SOL
P
D
Storage Temperature
Operating Temperature
Rating
Value
-55 to +150
-55 to +100
250 for 10 sec
400
5.33
60
3
3.0
100
1.3
30
150
2.0
Unit
°C
°C
°C
mW
mW/°C
mA
A
V
mW
mW/°C
mA
mW
mW/°C
Lead Solder Temperature (wave solder)
Total Device Power Dissipation @ T
A
= 25°C
Derate above 25°C
Forward Current – Continuous
Forward Current – Peak (PW = 1µs, 300pps)
Reverse Voltage
LED Power Dissipation @ T
A
= 25°C
Derate above 25°C (Total Input)
Collector Current – Continuous
Detector Power Dissipation @ T
A
= 25°C
Derate above 25°C
EMITTER (Each channel)
I
F
I
F
(pk)
V
R
P
D
DETECTOR (Each channel)
I
C
P
D
©2006 Fairchild Semiconductor Corporation
MCT6, MCT61, MCT62 Rev. 1.0.3
www.fairchildsemi.com
2
MCT6, MCT61, MCT62 — Dual Phototransistor Optocouplers
Electrical Characteristics
(T
A
= 25°C unless otherwise specified)
Individual Component Characteristics
Symbol
EMITTER
V
F
V
R
I
R
C
J
BV
CEO
BV
ECO
I
CEO
C
CE
Input Forward Voltage
Reverse Voltage
Reverse Current
Junction Capacitance
Collector-Emitter Breakdown Voltage
Emitter-Collector Breakdown Voltage
Collector-Emitter Dark Current
Capacitance
I
F
= 20mA
I
R
= 10µA
V
R
= 5V
V
F
= 0V, f = 1MHz
I
C
= 1.0mA, I
F
= 0
I
E
= 100µA, I
F
= 0
V
CE
= 10V, I
F
= 0
V
CE
= 0V, f = 1MHz
30
6
3.0
1.2
25
0.001
50
85
13
5
8
100
10
1.5
V
V
µA
pF
V
V
nA
pF
Parameter
Test Conditions
Min.
Typ.*
Max.
Units
DETECTOR
Transfer Characteristics
Symbol
t
on
t
off
CTR
Characteristic
Non-Saturated Turn-on Time
Non-Saturated Turn-off Time
MCT6
MCT61
MCT62
Test Conditions
R
L
= 100
Ω
, I
C
= 2mA, V
CC
= 10V
Min.
Typ.*
2.4
2.4
Max.
Units
µs
µs
%
SWITCHING CHARACTERISTICS (AC)
CURRENT TRANSFER RATIO, COLLECTOR-EMITTER (DC)
I
F
= 10mA, V
CE
= 10V
I
F
= 5mA, V
CE
= 5V
I
F
= 16mA, I
C
= 2mA
20
50
100
0.15
0.40
V
V
CE(sat)
Saturation Voltage
Isolation Characteristics
Symbol
V
ISO
R
ISO
C
ISO
Characteristic
Input-Output Isolation Voltage
Isolation Resistance
Isolation Capacitance
Test Conditions
I
I-O
≤
10µA, t = 1min.
V
I-O
= 500VDC
f = 1MHz
Min.
5000
10
11
Typ.*
Max.
Units
Vac(rms)
Ω
0.5
pF
*All typicals at T
A
= 25°C
©2006 Fairchild Semiconductor Corporation
MCT6, MCT61, MCT62 Rev. 1.0.3
www.fairchildsemi.com
3
MCT6, MCT61, MCT62 — Dual Phototransistor Optocouplers
Typical Performance Curves
Fig. 1 Normalized CTR vs. Forward Current
1.4
1.2
V
CE
= 5.0V
T
A
= 25
°
C
Normalized to
I
F
= 10mA
Fig. 2 Normalized CTR vs. Ambient Temperature
1.6
1.4
NORMALIZED CTR
NORMALIZED CTR
1.0
0.8
0.6
0.4
0.2
0.0
0
5
10
15
I
F
- FORWARD CURRENT (mA)
20
I
F
= 5mA
1.2
1.0
I
F
= 10mA
0.8
0.6
Normalized to
I
F
= 10mA
T
A
= 25
°
C
I
F
= 20mA
0.4
-75
-50
-25
0
25
50
75
100
T
A
- AMBIENT TEMPERATURE (°C)
125
Fig. 3 Dark Current vs. Ambient Temperature
I
CEO
- COLLECTOR-EMITTER DARK CURRENT (µA)
Fig. 4 Switching Speed vs. Load Resistor
1000
I
F
= 10mA
V
CC
= 10V
T
A
= 25
°
C
10
1
10
0
10
-1
10
-2
10
-3
10
-4
10
-5
V
CE
= 10V
SWITCHING SPEED (µs)
100
T
off
10
T
f
T
on
1
T
r
10
-6
0
25
50
75
100
125
0.1
0.1
1
10
R - LOAD RESISTOR (kΩ)
100
T
A
- AMBIENT TEMPERATURE (°C)
Fig. 5 LED Forward Voltage vs. Forward Current
1.8
1.7
100
Fig. 6 Collector-Emitter Saturation Voltage
vs. Collector Current
T
A
= 25
°
C
V
F
- FORWARD VOLTATGE (V)
V
CE (SAT)
- COLLECTOR-EMITTER
SATURATION VOLTAGE (V)
1.6
1.5
1.4
1.3
T
A
= 25
°
C
10
1
I
F
= 2.5mA
T
A
= 55
°
C
0.1
1.2
1.1
T
A
= 100
°
C
0.01
I
F
= 5mA
I
F
= 20mA
I
F
= 10mA
1.0
1
10
I
F
- LED FORWARD CURRENT (mA)
100
0.001
0.01
0.1
1
10
I
C
- COLLECTOR CURRENT (mA)
©2006 Fairchild Semiconductor Corporation
MCT6, MCT61, MCT62 Rev. 1.0.3
www.fairchildsemi.com
4
MCT6, MCT61, MCT62 — Dual Phototransistor Optocouplers
Package Dimensions
Through Hole
Surface Mount
9.18~10.18
9.18~10.18
(0.405)
Pin 1
Pin 1
(0.405)
6.00~7.00
6.00~7.00
3.00~4.00
1.15~1.35
3.00~4.00
1.15~1.35
4.50
(Typ.)
0.35
Typ.
0.75~1.25
(Both sides
8.15 (Typ.)
9.86~10.46
0.26 (Typ.)
0.26 Typ.
1.00
(Typ.)
2.30~3.30
0.40~0.60
2.29~2.79
7.62 (Typ.)
15°
(Max.)
3.85
Typ.
2.29~2.79
0.40~0.60
0.4" Lead Spacing
9.18~10.18
(0.405)
Recommend Pad Layout for Surface
Mount Leadform
(1.50)
(2.54)
Pin 1
6.00~7.00
(1.30)
(10.50)
(7.90)
3.00~4.00
1.15~1.35
4.60
(Typ.)
1.10
(Typ.)
2.30~3.30
2.29~2.79
0.40~0.60
15°
(Max.)
10.16 (Typ.)
0.26 (Typ.)
(1.04)
Note:
All dimensions are in millimeters.
©2006 Fairchild Semiconductor Corporation
MCT6, MCT61, MCT62 Rev. 1.0.3
www.fairchildsemi.com
5
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