SFH6720T, SFH6721T
Vishay Semiconductors
High Speed Optocoupler, Dual, 5 MBd, in SOIC-8 Package
FEATURES
1
A 2
C 3
4
i179074_2
8 V
CC
7 V
O
6 NC
5
GND
V
D E
• Data rate 5
temperature)
• Buffer
MBits/s
(2.5
MBit/s
over
• Isolation test voltage, 4000 V
RMS
• TTL, LSTTL and CMOS compatible
• Internal shield for very high common mode
transient immunity
• Wide supply voltage range (4.5 V to 15 V)
• Low input current (1.6 mA to 5 mA)
• Parameters specified from 0 °C to 85 °C
• T
amb
from - 40 °C to 100 °C
• Compliant to RoHS Directive to 2002/95/EC and in
accordance WEEE 2002/96/EC
i179074
DESCRIPTION
The single channel 5 Mb/s SFH6720T and SFH6721T high
speed optocoupler consists of a GaAlAs infrared emitting
diode, optically coupled with an integrated photo detector.
The detector incorporates a schmitt-trigger stage for
improved noise immunity. A faraday shield provides a
common mode transient immunity of 1000 V/μs at
V
CM
= 50 V for SFH6720T and 2500 V/μs at V
CM
= 400 V for
SFH6721T.
The SFH6720T and SFH6721T uses an industry standard
SOIC-8A package.
APPLICATIONS
• Industrial control
• Replace pulse transformers
• Routine logic interfacing
• Motion/power control
• High speed line receiver
• Microprocessor system interfaces
• Computer peripheral interfaces
AGENCY APPROVALS
• UL1577, file no. E52744 system code Y
• DIN EN 60747-5-5 (VDE 0884) available with option 1
ORDERING INFORMATION
SIOC-8
S
F
H
6
PART NUMBER
7
2
#
T
TAPE AND
REEL
6.1 mm
AGENCY CERTIFIED/PACKAGE
UL
SOIC-8
VDE, UL
SOIC-8
CMR (kV/μs)
1
SFH6720T
1
SFH6720-X001T
CMR (kV/μs)
2.5
SFH6721T
2.5
-
TRUTH TABLE
(positive logic)
PART
SFH6720T
SFH6721T
IR DIODE
On
Off
On
Off
OUTPUT
H
L
H
L
Document Number: 83684
Rev. 1.6, 04-Nov-10
For technical questions, contact:
optocoupleranswers@vishay.com
www.vishay.com
1
SFH6720T, SFH6721T
Vishay Semiconductors
High Speed Optocoupler, Dual,
5 MBd, in SOIC-8 Package
(1)
ABSOLUTE MAXIMUM RATINGS
PARAMETER
INPUT
Reverse voltage
DC forward current
Surge forward
Power dissipation
OUTPUT
Supply voltage
Output voltage
Average output current
Power dissipation
COUPLER
Storage temperature range
Ambient temperature range
Isolation test voltage
Pollution degree
Creepage distance
Clearance distance
Comparative tracking index per
DIN IEC112/VDE 0303, part 1
Isolation resistance
Lead soldering temperature
(2)
(T
amb
= 25 °C, unless otherwise specified)
SYMBOL
V
R
I
F
VALUE
3
10
1
20
- 0.5 to + 15
- 0.5 to + 15
25
100
- 55 to + 125
+ 85
4000
2
4
4
CTI
175
10
12
10
11
260
Ω
Ω
°C
mm
mm
UNIT
V
mA
mA
mW
V
V
mA
mW
°C
°C
V
RMS
TEST CONDITION
t
p
≤
1 μs, 300 pulses/s
I
FSM
P
diss
V
CC
V
O
I
O
P
diss
T
stg
T
amb
t=1s
V
ISO
V
IO
= 500 V, T
amb
= 25 °C
V
IO
= 500 V, T
amb
= 100 °C
t = 10 s
R
IO
R
IO
T
sld
Notes
(1)
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. Functional operation of the device is not
implied at these or any other conditions in excess of those given in the operational sections of this document. Exposure to absolute
maximum ratings for extended periods of the time can adversely affect reliability.
(2)
Refer to reflow profile soldering conditions for surface mounted devices.
RECOMMENDED OPERATING CONDITIONS
(1)
PARAMETER
Supply voltage
Forward input current
Operating temperature
TEST CONDITION
SYMBOL
V
CC
I
Fon
I
Foff
T
A
- 40
MIN.
4.5
1.6
(2)
TYP.
MAX.
15
5
0.1
85
UNIT
V
mA
mA
°C
Notes
(1)
A 0.1 μF bypass capacitor connected between pins 5 and 8 must be used.
(2)
We recommended using a 2.2 mA if to permit at least 20 % CTR degradation guard band.
ELECTRICAL CHARACTERISTICS
PARAMETER
INPUT
Forward voltage
Input current hysteresis
Reverse current
Capacitance
Thermal resistance
(1)
TEST CONDITION
SYMBOL
V
F
V
F
I
HYS
I
R
C
O
R
thja
MIN.
TYP.
1.6
MAX.
1.75
1.9
UNIT
V
V
V
μA
pF
K/W
I
F
= 5 mA, 25 °C
V
CC
= 5 V, I
HYS
= I
Fon
- I
Foff
V
R
= 3 V
V
R
= 0 V, f = 1 MHz
0.1
0.5
60
700
10
www.vishay.com
2
For technical questions, contact:
optocoupleranswers@vishay.com
Document Number: 83684
Rev. 1.6, 04-Nov-10
SFH6720T, SFH6721T
High Speed Optocoupler, Dual,
5 MBd, in SOIC-8 Package
ELECTRICAL CHARACTERISTICS
PARAMETER
OUTPUT
Logic low output voltage
Logic high output voltage
Output leakage current
(V
OUT
> V
CC
)
I
OL
= 6.4 mA
I
OH
= - 2.6 mA,
V
OH
= V
CC
- 1.8 V
V
O
= 5.5 V, V
CC
= 4.5 V,
I
F
= 5 mA
V
O
= 15 V, V
CC
= 4.5 V,
I
F
= 5 mA
V
CC
= 5.5 V, I
F
= 0
V
CC
= 15 V, I
F
= 0
V
CC
= 5.5 V, I
F
= 5 mA
V
CC
= 15 V, I
F
= 5 mA
V
O
= V
CC
= 5.5 V, I
F
= 0
V
O
= V
CC
= 15 V, I
F
= 0
V
CC
= 5.5 V, V
O
= 0 V,
I
F
= 5 mA
V
CC
= 15 V, V
O
= 0 V, I
F
= 5 mA
V
OL
V
OH
I
OHH
I
OHH
I
CCL
I
CCL
I
CCH
I
CCH
I
OSL
I
OSL
I
OSH
I
OSH
R
thja
f = 1 MHz, pins 1 to 4 and 5 to 8
shorted together
V
IO
= 500 V, T
amb
= 25 °C
V
IO
= 500 V, T
amb
= 100 °C
300
25
40
- 10
-25
2.4
0.5
1
3.7
4.1
3.4
3.7
100
500
6
6.5
4
5
0.5
V
V
μA
μA
mA
mA
mA
mA
mA
mA
mA
mA
K/W
(1)
Vishay Semiconductors
TEST CONDITION
SYMBOL
MIN.
TYP.
MAX.
UNIT
Logic low supply current
Logic high supply current
Logic low short circuit output
current
(output short circuit time
≤
10 ms)
Logic high short circuit output
current
(output short circuit time
≤
10 ms)
Thermal resistance
COUPLER
Capacitance (input to output)
Isolation resistance
C
IO
10
12
10
11
0.6
pF
Ω
Ω
Note
(1)
- 40 ° C
≤
T
amb
≤
85 °C; 4.5 V
≤
V
CC
≤
15 V; 1.6 mA
≤
I
Fon
≤
5 mA; 2
≤
V
EH
≤
15 V; 0
≤
V
EL
≤
0.8 V; 0 mA
≤
I
Foff
≤
0.1 mA.
Typical values: T
amb
= 25 °C; V
CC
= 5 V; I
Fon
= 3 mA unless otherwise specified.
Minimum and maximum values are testing requirements. Typical values are characteristics of the device and are the result of engineering
evaluation. Typical values are for information only and are not part of the testing requirements.
SWITCHING CHARACTERISTICS
PARAMETER
Propagation delay time to logic
low output level
Propagation delay time to logic
high output level
Output rise time
Output fall time
(1)
TEST CONDITION
Without peaking capacitor
With peaking capacitor
Without peaking capacitor
With peaking capacitor
10 % to 90 %
90 % to 10 %
SYMBOL
t
PHL
t
PHL
t
PLH
t
PLH
t
r
t
f
MIN.
TYP.
120
115
125
90
40
10
MAX.
300
300
UNIT
ns
ns
ns
ns
ns
ns
Note
(1)
0 °C
≤
T
amb
≤
85 °C; 4.5 V
≤
V
CC
≤
15 V; 1.6 mA
≤
I
Fon
≤
5 mA; 0 mA
≤
I
Foff
≤
0.1 mA
Typical values: T
amb
= 25 ° C; V
CC
= 5 V; I
Fon
= 3 mA unless otherwise specified. A 0.1 μF bypass capacitor connected between pins 5 and
8 must be used.
I
CC
I
F
A
(2)
I
O
V
O
(7)
K
(3)
Shield
isfh6720_00
V
CC
(8)
GND
(5)
Document Number: 83684
Rev. 1.6, 04-Nov-10
For technical questions, contact:
optocoupleranswers@vishay.com
www.vishay.com
3
SFH6720T, SFH6721T
Vishay Semiconductors
High Speed Optocoupler, Dual,
5 MBd, in SOIC-8 Package
COMMON MODE TRANSIENT IMMUNITY
(1)
PARAMETER
Logic high common mode
transient immunity
(2)
Logic low common mode
transient immunity
(2)
TEST CONDITION
|V
CM
| = 50 V, I
F
= 1.6 mA
|V
CM
| = 300 V, I
F
= 1.6 mA
|V
CM
| = 50 V, I
F
= 0 mA
|V
CM
| = 1000 V, I
F
= 0 mA
PART
SFH6731
SFH6732
SFH6731
SFH6732
SYMBOL
|CM
H
|
|CM
H
|
|CM
L
|
|CM
L
|
MIN.
1000
5000
1000
10 000
TYP.
MAX.
UNIT
V/μs
V/μs
V/μs
V/μs
Note
(1)
T
(2)
amb
= 25 °C, V
CC
= 5 V.
(2)
CM is the maximum slew rate of a common mode voltage V
H
CM
at which the output voltage remains at logic high level (V
O
> 2 V). CM
L
is
the maximum slew rate of a common mode voltage V
CM
at which the output voltage remains at logic low level (V
O
< 0.8 V).
SAFETY AND INSULATION RATINGS
PARAMETER
Climatic Classification
(according to IEC 68 part 1)
Comparative Tracking Index
V
IOTM
V
IORM
P
SO
I
SI
T
SI
Creepage distance
Clearance distance
Insulation thickness
4
4
0.2
CTI
175
6000
560
350
150
165
TEST CONDITION
SYMBOL
MIN.
TYP.
55/100/21
399
V
V
mW
mA
°C
mm
mm
mm
MAX.
UNIT
Note
• As per IEC 60747-5-5, § 7.4.3.8.1, this optocoupler is suitable for “safe electrical insulation” only within the safety ratings. Compliance with
the safety ratings shall be ensured by means of protective circuits.
TYPICAL CHARACTERISTICS
(T
amb
= 25 °C, unless otherwise specified)
150
10
P
tot
- Power Dissipation (mW)
120
Detector
100
75
50
Emitter
25
0
- 60 - 40 - 20
I
F
- Forward Current (mA)
40
60
80
100
1
0.1
0.01
0
20
1.3
isfh6720_02
1.4
1.5
1.6
1.7
isfh6720_01
T
A
- Temperature (°C)
V
F
- Forward Voltage (V)
Fig. 1 - Permissible Total Power Dissipation vs. Temperature
Fig. 2 - Typical Input Diode Forward Current vs. Forward Voltage
www.vishay.com
4
For technical questions, contact:
optocoupleranswers@vishay.com
Document Number: 83684
Rev. 1.6, 04-Nov-10
SFH6720T, SFH6721T
High Speed Optocoupler, Dual,
5 MBd, in SOIC-8 Package
Vishay Semiconductors
1.75
1100
I
F
= 5 mA
V
F
- Forward Voltage (V)
I
OHH
- Output Leakage
Current (nA)
1.70
1.65
1.60
1.55
1.50
1.45
- 60 - 40 - 20
1000
900
800
700
600
500
V
CC
= V
O
= 5.5 V
V
CC
= V
O
= 15 V
0
20
40
60
80 100
400
- 60 - 40 - 20
isfh6720_06
0
20
40
60
80 100
isfh6720_03
T
A
- Temperature (°C)
T
A
- Temperature (°C)
Fig. 3 - Typical Forward Input Voltage vs. Temperature
Fig. 6 - Typical Output Leakage Current vs. Temperature
5
40
V
O
- Output Voltage (V)
I
OL
- Low Level Output
Current (mA)
4
V
CC
= 4.5 V
38
35
33
30
28
25
23
0.4
0.6
0.8
1.0
V
CC
= 5 V
I
F
= 0 mA
3
I
OH
= - 2.6 mA
2
V
OL
= 0.8 V
V
OL
= 0.6 V
1
I
OL
= 6.4 mA
0
0.0
0.2
V
OL
= 0.4 V
0
20
40
60
80
100
20
- 60 - 40 - 20
isfh6720_07
isfh6720_04
I
F
- Input Current (mA)
T
A
- Temperature (°C)
Fig. 4 - Typical Output Voltage vs. Forward Input Current
Fig. 7 - Typical Low Level Output Current vs. Temperature
0.30
I
CC
- Supply Current (mA)
4.2
4.0
V
OL
- Low Level Output
Voltage (V)
I
CCL
at V
CC
= 15 V
I
CCH
at V
CC
= 15 V &
V
CC
= 5 V
0.25
I
F
= 0 mA
I
O
= 16 mA
I
O
= 12.8 mA
I
O
= 9.6 mA
0.10
I
O
= 6.4 mA
0.05
- 60 - 40 - 20
isfh6720_08
0.20
0.15
3.8
3.6
I
CCL
at V
CC
= 5.5 V
I
CCH
at V
CC
= 5.5 V
3.4
3.2
- 60 - 40 - 20
0
20
40
60
80
100
0
20
40
60
80 100
isfh6720_05
T
A
- Temperature (°C)
T
A
- Temperature (°C)
Fig. 5 - Typical Supply Current vs. Temperature
Fig. 8 - Typical Low Level Output Voltage vs. Temperature
Document Number: 83684
Rev. 1.6, 04-Nov-10
For technical questions, contact:
optocoupleranswers@vishay.com
www.vishay.com
5
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