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SAT450
AC Input Optocoupler DESCRIPTION
The SAT450 consists of a phototransistor optically coupled to a pair of light emitting diodes for AC input operation. Optical coupling between the input LEDs and output phototransistor allows for high isolation levels while maintaining low-level AC signal control capability. The SAT450 provides an optically isolated method of controlling many interface applications such as telecommunications, industrial control and instrumentation circuitry.
FEATURES
High input-to-output isolation package (3750 Vrms) Low input power consumption High stability AC/DC input control
APPLICATIONS
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.
OPTIONS/SUFFIXES
-TR Tape and Reel
MAXIMUM RATINGS
PARAMETER Storage Temperature Operating Temperature Input Forward Current Input Peak Forwad Current
1. Anode/ Cathode 2. Anode/ Cathode 3. Emitter 4. Collector
UNIT C C mA A V mW
MIN -55 -40
TYP
MAX 125 100 50 1 6 170
SCHEMATIC DIAGRAM
Reverse Input Voltage Total Power Dissipation
APPROVALS
UL and C-UL Approved File#E201932
rev 1.0
Solid State Optronics, Inc. 1.888.377.4776 www.ssousa.com
SAT450
AC Input Optocoupler
ELECTRICAL CHARACTERISTICS - 25
PARAMETER INPUT SPECIFICATIONS
LED Forward Voltage Terminal Capacitance V pF 1.2 30 1.4 250 If = 20mA V=0, f=1kHz
UNIT
MIN
TYP
MAX
TEST CONDITIONS
OUTPUT SPECIFICATIONS
Collector-Emitter Breakdown Voltage Emitter-Collector Breakdown Voltage Dark Current Floating Capacitance Saturation Voltage Current Transfer Ratio Rise Time Fall Time V V A pF V % s s 20 4 3 0.6 0.1 60 5 0.1 1 0.3 400 Ic = 1uA Ie = 1uA Vce = 20V Vce = 0V, f=1MHz If = 20mA, Ic = 1mA If = 1mA, Vce = 5V Ic = 2mA, Vce = 2V, Rc = 100 ohms Ic = 2mA, Vce = 2V, Rc = 100 ohms
COUPLED SPECIFICATIONS
Isolation Voltage Isolation Resistance V G 3750 50 T = 1 minute
rev 1.0
Solid State Optronics, Inc. 1.888.377.4776 www.ssousa.com
SAT450
Fig.1 Forward Current vs. Ambient Temperature Fig.2 Diode Power Dissipation vs. Ambient Temperature Fig.3 Collector Power Dissipation vs. Ambient Temperature
Collector power dissipation Pc (mW) Ambient Temperature Ta (C) Diode power dissipation P (mW) Ambient Temperature Ta (C) Forward Current IF (mA)
Ambient Temperature Ta (C)
Fig.4 Total Power Dissipation vs. Ambient Temperature
Fig.5 Peak Forward Current vs. Duty Ratio
Fig.6 Forward Current vs. Forward Voltage
Total power dissipation Pc (mW)
Peak Forward Current IFM (mA)
Ambient Temperature Ta (C)
Duty ratio
Forward Current IF (mA)
Forward voltage VF (V)
Fig.7 Current Transfer Ratio vs. Forward Current
Fig.8 Collector Current vs. Collectoremitter Voltage
Fig.9 Relative Current Transfer Ratio vs. Ambient Temperature
Forward Current IF (mA)
Collector-emitter Voltage VCE (V)
Relative current transfer ratio (%)
Current transfer ratio CTR (%)
Collector Current Ic (mA)
Ambient Temperature Ta (C)
Collector-emitter saturation Voltage VCE (SAT) (V)
Fig.10 Collector-emitter Saturation Voltage vs. Ambient Temperature
Fig.11 Collector Dark Current vs. Ambient Temperature
Fig.12 Response Time vs. Load Resistance
Collector dark current ICEO (A)
Ambient Temperature Ta (C)
Ambient Temperature Ta (C)
Response Time (us)
Load resistance RL (K ohm)
rev 1.0
Solid State Optronics, Inc. 1.888.377.4776 www.ssousa.com
SAT450
AC Input Optocoupler
MECHANICAL DIMENSIONS 4 PIN SMALL OUTLINE PACKAGE
.275" 0.015" (6.985 0.4mm)
END VIEW
.170" 0.010" (4.165 0.3mm)
TOP VIEW
.80" 0.005" (1.96 0.13mm)
BACK VIEW
rev 1.0
Solid State Optronics, Inc. 1.888.377.4776 www.ssousa.com

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