SDD400
DC Input
Optocoupler
The SDD400 consists of a Photo Darlington transistor optically coupled to a light emitting diode. Optical coupling between the input LED
and output Photo Darlington allows for high isolation levels while maintaining low-level DC signal control capability. The SDD400 provides
an optically isolated method of controlling many interface applications such as telecommunications, industrial control and instrumentation
circuitry.
DESCRIPTION
FEATURES
APPLICATIONS
OPTIONS/SUFFIXES
SCHEMATIC DIAGRAM
MAXIMUM RATINGS
APPROVALS
High current transfer ratio
High input-to-output isolation package (5000 Vrms)
Compact dual-in-line package
System appliances, measuring instruments
Industrial robots
Copiers, automated vending machines
Signal transmission between varying circuits
Telephone sets
Fax machines
Interface with various power supply circuits
Numerical control machines
Surface Mount Option
-S
Tape and Reel Option
-TR
PARAMETER
UNIT
MIN
TYP
MAX
Storage Temperature
C
-55
125
Operating Temperature
C
-40
100
Continuous Forward
Current
mA
50
Peak Forward Current
A
1
Reverse Voltage
V
6
Output Power Dissipation
mW
200
UL and C-UL Approved, File #E201932
rev 1.0
Solid State Optronics, Inc.
1.888.377.4776
www.ssousa.com
1. Anode
2. Cathode
3. Emitter
4. Collector
SDD400
DC Input
Optocoupler
ELECTRICAL CHARACTERISTICS - 25
PARAMETER
UNIT
MIN
TYP
MAX TEST CONDITIONS
INPUT SPECIFICATIONS
LED Forward Voltage
V
1.2
1.4
If = 20mA
Reverse Current
10
Vr=4V
A
Terminal Capacitance
p
30
V=0, f=1kHz
F
OUTPUT SPECIFICATIONS
Collector-Emitter Breakdown Voltage
V
300
Ic = 10uA
Emitter-Collector Voltage
V
0.1
Ie = 10uA
Dark Current
1
Vce = 200V, If=0
A
Floating Capacitance
p
0.6
1
Vce = 0V, f=1.0MHz
F
Saturation Voltage
V
1.5
If = 20mA, Ic = 5mA
Current Transfer Ratio
%
600
9000
If = 1mA, Vce = 2V
Rise Time
60
Ic = 20mA, Vc
e = 2V, Rc = 100 ohms
s
Fall Time
50
Ic = 20mA, Vc
e = 2V, Rc = 100 ohms
s
COUPLED SPECIFICATIONS
Isolation Voltage
V
5000
T = 1 minute
Isolation Resistance
G
50
Cut off Frequency
k
7
Ic = 2mA, Vcc = 5V, Rc = 100 ohms
H z
CTR CLASSIFICATION
-A
%
600
2000
-B
%
1500
4000
-C
%
3000
6000
-D
%
5000
9000
-E
%
600
9000
rev 1.0
Solid State Optronics, Inc.
1.888.377.4776
www.ssousa.com
SDD400
rev 1.0
Solid State Optronics, Inc.
1.888.377.4776
www.ssousa.com
Fig.1 Current Transfer Ratio vs.
Forward Current
Forward Current I
F
(mA)
Current transfer ratio CTR (%)
Fig.2 Collector Power Dissipation vs.
Ambient Temperature
Ambient Temperature Ta (C)
Collector Power Dissipation Pc (mW)
Fig.4 Forward Current vs. Ambient
Temperature
Ambient Temperature Ta (C)
Forward Current I
F
(mA)
Fig.5 Forward Current vs. Forward
Voltage
Forward Voltage V
F
(V)
Forward Current I
F
(mA)
Fig.7 Relative Current Transfer Ratio
vs. Ambient Temperature
Ambient Temperature Ta (C)
Relative Current T
ransfer Ratio (%)
Fig.8 Collector-emitter Saturation
Voltage vs. Forward Current
Forward Current I
F
(mA)
Collector-emitter Saturation V
oltage Vce (V)
Fig.3 Collector Dark Current vs.
Ambient Temperature
Ambient Temperature Ta (C)
Collector Dark Current Iceo (A)
Fig.6 Collector Current vs. Collector-
emitter Voltage
Collector-emitter Voltage V
CE
(V)
Collector Current Ic (mA)
Fig.9 Response Time vs. Load
Resistance
Load Resistance R
L
(K ohm)
Response Rise T
ime (us)
SDD400
DC Input
Optocoupler
MECHANICAL DIMENSIONS
4 PIN DUAL IN-LINE PACKAGE
4 PIN SURFACE MOUNT DEVICE
END VIEW
END VIEW
TOP VIEW
TOP VIEW
BOTTOM VIEW
BOTTOM VIEW
rev 1.0
Solid State Optronics, Inc.
1.888.377.4776
www.ssousa.com
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