SDT800
DC Input Dual
Optocoupler
The SDT800 consists of two phototransistors, each optically coupled to a light emitting diodes for DC input operation. Optical coupling
between the input LEDs and output phototransistor allows for high isolation levels while maintaining low-level DC signal control capability.
The SDT800 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 input-to-output isolation package
Low input power consumption
High stability
CTR (MIN:50%-MAX-600% @IF=5mA Vce=5V)
Registers, copiers, Automatic Vending Machines
System appliances, measuring instruments
Computer terminals, PLCs
Telecommunications, telephones
Home Appliances
Digital logic inputs
Microprocessor inputs
Switching power supply, laser beam printers, etc.
Surface Mount Option
-S
Tape and Reel Option
-TR
PARAMETER
UNIT
MIN
TYP
MAX
Storage Temperature
C
-55
125
Operating Temperature
C
-40
85
Continuous Input Current
mA
50
Transient Input Current
A
1
Reverse Input Control
Voltage
V
6
Output Power Dissipation
mW
200
1
2
3
4
8
7
6
5
- LED
+ LED
- LED
+ LED
Emitter
Collector
Emitter
Collector
UL and C-UL Approved File #201
932
rev 1.0
Solid State Optronics, Inc.
1.888.377.4776
www.ssousa.com
SDT800
DC Input Dual
Optocoupler
ELECTRICAL CHARACTERISTICS - 25
PARAMETER
UNIT
MIN
TYP
MAX TEST CONDITIONS
INPUT SPECIFICATIONS
LED Forward Voltage
V
1.2
1.4
If = 10mA
Peak Forward Voltage
V
3
Ifm = 0.5A
Reverse Current
10
Vr=4V
A
OUTPUT SPECIFICATIONS
Collector-Emitter Breakdown Voltage
V
60
Ic = 10uA
Emitter-Collector Breakdown Voltage
V
6
Ie = 10uA
Dark Current
0.1
Vce = 20V
A
Floating Capacitance
p
0.6
1
Vce = 0V, f=1.0MHz
F
Saturation Voltage
V
0.1
0.2
If = 20mA, Ic = 1mA
Current Transfer Ratio
%
50
600
If = 5mA, Vce = 5V
Rise Time
4
Ic = 2mA, Vce = 2V, Rc =100 ohms
s
Fall Time
3
Ic = 2mA, Vc
e = 2V, Rc = 100 ohms
s
COUPLED SPECIFICATIONS
Isolation Voltage
V
5000
T = 1 minute
Isolation Resistance
G
50
DC500V
rev 1.0
Solid State Optronics, Inc.
1.888.377.4776
www.ssousa.com
SDT800
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. Ambient Temperature
Ambient Temperature Ta (C)
Collector-emitter Saturation V
oltage Vce (V)
Fig.10 Response Time vs. Load
Resistance
Load Resistance R
L
(K ohm)
Response Rise T
ime (us)
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 Collector-emitter Saturation
Voltage vs. Forward Current
Forward Current I
F
(mA)
Collector-emitter Saturation V
oltage Vce (V)
Fig.11 Response Time vs. Load
Resistance
Load Resistance R
L
(K ohm)
Response Rise T
ime (us)
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