SFH6325
SFH6326
High-Speed Dual Optocoupler
Dimensions in inches (mm)
FEATURES
• Isolation Test Voltage: 5300 V
RMS
• TTL Compatible
• Bit Rates: 1.0 MBit/s
• High Common-mode Transient Immunity
• Bandwidth 2.0 MHz
• Open-Collector Output
• Field-effect Stable by TRIOS
(TRansparent IOn Shield)
• Underwriters Lab File #E52744
Description
The SFH6325/6326 are dual channel optocouplers
with a GaAIAs infrared emitting diode, optically
coupled with an integrated photodetector which
consists of a photodiode and a high-speed transis-
tor in a DIP-8 plastic package.
Signals can be transmitted between two electrically
separated circuits up to frequencies of 2.0 MHz.
The potential difference between the circuits to be
coupled is not allowed to exceed the maximum per-
missible reference voltages.
pin one ID
4
.255 (6.48)
.268 (6.81)
5
6
7
8
3
2
1
Anode 1
1
Cathode 1
2
Cathode 2
3
Anode 2
4
Cathode
8 (V
CC
)
7 Collector
1
(V
01
)
6 Collector
2
(V
02
)
Emitter
5
(GND)
.379 (9.63)
.390 (9.91)
.030 (0.76)
.045 (1.14)
4° typ.
.031 (0.79)
.300 (7.62)
typ.
.130 (3.30)
.150 (3.81)
.050 (1.27)
.018 (.46)
.022 (.56)
.020 (.51)
.035 (.89)
.100 (2.54) typ.
10
°
3°–9°
.008 (.20)
.012 (.30)
.230 (5.84)
.110 (2.79) .250 (6.35)
.130 (3.30)
Maximum Ratings,
T
A
=25
°
C
Emitter
(each channel)
Reverse Voltage ...................................................................................4.5 V
Continuous Forward Current ..............................................................25 mA
Peak Forward Current
(t=1.0 ms, duty cycle 50%) .............................................................50 mA
Maximum Surge Forward Current
(t
≤
1.0
µ
s, 300 pulses/s) .....................................................................1.0 A
Derate Linearly from 25
°
C.......................................................... 0.6 mW/
°
C
Total Power Dissipation (
T
A
≤
70
°
C) ....................................................50 mW
Detector
(each channel)
Supply Voltage .......................................................................... –0.5 to 30 V
Output Voltage .......................................................................... –0.5 to 25 V
Collector Output Current ...................................................................8.0 mA
Derate Linearly from 25
°
C........................................................ 1.33 mW/
°
C
Total Power Dissipation (
T
A
≤
70
°
C) ....................................................50 mW
Package
Isolation Test Voltage (t=1.0 s) ...................................................5300 V
RMS
Pollution Degree (DIN VDE 0109) .............................................................. 2
Creepage ......................................................................................
≥
7.0 mm
Clearance ......................................................................................
≥
7.0 mm
Derate Linearly from 25
°
C........................................................ 1.93 mW/
°
C
Total Package Dissipation at 25
°
C
T
A
.............................................145 mW
Comparative Tracking Index per
DIN IEC112/VDE 0303 part 1,
Group IIIa per DIN VDE 6110............................................................... 175
Isolation Resistance
V
IO
=500 V,
T
A
=25
°
C .....................................................................
≥
10
12
Ω
V
IO
=500 V,
T
A
=100
°
C ...................................................................
≥
10
11
Ω
Storage Temperature Range ............................................ –55
°
C to +125
°
C
Ambient Temperature Range ........................................... –55
°
C to +100
°
C
Soldering Temperature
(max. 10 s, DIP soldering:
distance to seating plane
≥
1.5 mm)................................................. 260
°
C
2001 Infineon Technologies Corp. • Optoelectronics Division • San Jose, CA
www.infineon.com/opto • 1-888-Infineon (1-888-463-4636)
Characteristics
(
T
A
=0–70
°
C unless otherwise specified)
Parameter
Emitter
Forward Voltage
Breakdown Voltage
Reverse Current
Capacitance
Temperature Coefficient of Forward
Voltage
Detector
Supply Current Logic Low
Supply Current Logic High
Logic Low Output
Voltage
SFH6325
SFH6326
Logic High Output Current
Channel to channel
(1)
Crosstalk
I
OH
I
OH-XT
C
IO
SFH6325
SFH6326
SFH6325
SFH6326
CTR
CTR
CTR
CTR
I
CCL
I
CCH
V
OL
Sym.
V
F
V
BR
I
R
C
O
∆
V
F
/
∆
T
A
Min.
—
4.5
—
—
—
Typ.
1.6
—
0.5
125
–1.7
Max.
1.9
—
10
—
—
Unit
V
V
µ
A
pF
mV/
°
C
Condition
I
F
=16 mA,
T
A
=25
°
C
I
R
=10
µ
A
V
R
=4.5 V
V
R
=0 V, f=1.0 MHz
I
F
=16 mA
—
—
—
100
0.01
0.1
200
4.0
0.5
µ
A
µ
A
V
I
F
=16 mA,
V
O
=open,
V
CC
=4.5 V
I
F
=0 mA,
V
O
=open,
V
CC
=15 V
I
F
=16 mA,
V
CC
=4.5 V,
I
O
=1.1 mA,
T
A
=25
°
C
I
F
=16 mA,
V
CC
=4.5 V,
I
O
=3.0 mA,
T
A
=25
°C
—
—
—
—
7.0
19
5.0
15
3.0
—
—
0.6
16
35
500
50
500
nA
µA
nA
pF
%
%
I
F
=0 mA,
T
A
=25°C
V
O
=V
CC
=5.5 V
I
F
=0 mA,
V
O
=V
CC
=15 V
I
F
=16 mA,
T
A
=25°C
V
O
=V
CC
=5.5 V
f=1.0 MHz
I
F
=16 mA,
V
CC
=4.5 V,
V
O
=0.4 V,
T
A
=25°C
I
F
=16 mA,
V
CC
=4.5 V,
V
O
=0.5 V
Package
Coupling Capacitance
Input-Output
Current Transfer Ratio
—
—
—
—
Note: 1. To measure crosstalk, turn on the LED for channel 1 and measure the output current for channel 2 in logic high. Repeat for channel 2.
Switching Delay Time Characteristics
I
F
=16 mA,
V
CC
=5.0 V,
T
A
=25
°
C
Parameter
High–Low
SFH6325
SFH6326
Low–High
SFH6325
SFH6326
t
PLH
—
0.6
0.5
1.5
0.8
µs
R
L
=4.1 kΩ
R
L
=1.9 kΩ
t
PHL
—
0.3
0.2
1.5
0.8
µs
R
L
=4.1 kΩ
R
L
=1.9 kΩ
Sym. Min.
Typ.
Max.
Unit
Condition
Common-Mode Transient Immunity
V
CM
=10 V
P–P
,
V
CC
=5.0 V,
T
A
=25
°
C
Parameter
SFH6325
SFH6326
CMTI at Logic Low Level Output
SFH6325
SFH6326
CM
L
—
1000
—
V/µs
I
F
=16 mA,
R
L
=4.1 kΩ
I
F
=16 mA,
R
L
=1.9 kΩ
Sym. Min.
CM
H
—
Typ.
1000
Max.
—
Unit
V/µs
Condition
I
F
=0 mA,
R
L
=4.1 kΩ
I
F
=0 mA,
R
L
=1.9 kΩ
CMTI at Logic High Level Output
2001 Infineon Technologies Corp. • Optoelectronics Division • San Jose, CA
www.infineon.com/opto • 1-888-Infineon (1-888-463-4636)
SFH6325/SFH6326
Figure 1. Switching Time and Test Circuit
I
F
t
V
O
5V
Pulse generator
Z
O
=50
Ω
t
r,
t
f
=5 ns
duty cycle 10%
t≤100
∝s
I
F
1
2
3
4
8
7
C=0.1
∝F
6
C
L
=15 p
5
5V
R
L
V
O
I
F
Monitor
V
OL
t
PHL
1.5 V
t
t
PLH
100
Ω
Figure 2. Waveform and Test Circuit for Common-mode Transient Immunity
V
CM
90%
10%
tr
V
O
5V
A: I
F
=0 mA
V
O
t
tf
B
V
CC
4
5
10%
90%
t
A
1
I
F
2
3
7
6
8
5V
R
L
V
O
C=0.1
∝F
0V
V
OL
B: I
F
=16 mA
t
Pulse generator
V
CM
Z
O
=50
Ω
t
r
,t
f
=8 ns
Figure 3. LED forward current vs. forward voltage
20
IF - LED Current in mA
15
10
5
0
1.3
1.4
1.5
1.6
1.7
VF - LED forward Voltage
75°C
25°C
0°C
Figure 4. Permissible forward LED current vs. temperature
30
I
F
LED Current in ma
20
10
0
0
20
40
60
80
100
Ambient Temperature in
°C
2001 Infineon Technologies Corp. • Optoelectronics Division • San Jose, CA
www.infineon.com/opto • 1-888-Infineon (1-888-463-4636)
SFH6325/SFH6326
Figure 5. Permissible power dissipation vs. temperature
120
Total Power in mW
100
80
60
40
Emitter
20
0
0
20
40
60
80
Ambient Temperature in
°C
100
Detector
Figure 8. Propagation Delay vs. Temperature-SFH6326
@
V
CC
=5.0 V,
I
F
=16 mA,
R
L
=1.9 kΩ
tp - Propagation Delay Time - ns
900
800
700
600
500
400
300
200
100
0
-60
-40
-20
0
20
40
60
Temperature, Ta(°C)
80
100
TpHL @ 1.5V
TpHL @ 3V
TpLH @ 1.5V
TpLH @ 3V
Figure 6. Output Current vs. Output Voltage
(T
A
=25°C,
V
CC
=5.0 V)
25
IF=40mA
Figure 9. Propagation Delay vs. Temperature-SFH6325
@
V
CC
=5.0 V,
I
F
=16 mA,
R
L
=4.1 kΩ
tp - Propagation Delay Time - ns
1400
1200
1000
800
600
400
200
0
-60
TpHL
TpLH
Output Current, Io(mA)
20
15
10
5
0
0
5
IF=35mA
IF=30mA
IF=25mA
IF=20mA
IF=15mA
IF=10mA
IF=5mA
10
15
Output Voltage, Vo(V)
20
25
-40
-20
0
20
40
60
Temperature, Ta(°C)
80
100
Figure 7. Output Current vs. Temperature
@
V
O
=0.4 V,
V
CC
=5.0
8
Output Current, Io(mA)
7
6
5
4
3
2
1
0
-60
-40
-20
0
20
40
60
Temperature, Ta(°C)
80
100
IF = 1mA
IF = 10mA
IF = 20mA
IF = 16mA
Figure 10. Logic High Output Current vs. Temperature
100
10
1
0.1
0.01
V
CC
=V
O
=15 V
V
CC
=V
O
=5 V
IF = 2mA
I
OH
- Collector Current, IC (nA)
0.001
-60
-40
-20
0
20
40
60
Temperature, T
A
(°C)
80
100
2001 Infineon Technologies Corp. • Optoelectronics Division • San Jose, CA
www.infineon.com/opto • 1-888-Infineon (1-888-463-4636)
SFH6325/SFH6326
Figure 11. Small Signal Current Transfer Ratio vs. Quiescent
Input Current
(V
CC
=5.0 V,
R
L
=100
Ω)
0.6
∆i
F
/∆i
O
/ Small Signal Current
Transfer Ratio
0.5
0.4
0.3
0.2
0.1
0
0
5
10
I
F
/ mA
15
20
25
2001 Infineon Technologies Corp. • Optoelectronics Division • San Jose, CA
www.infineon.com/opto • 1-888-Infineon (1-888-463-4636)
SFH6325/SFH6326
