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| SDD451 DC Input Optocoupler DESCRIPTION The SDD451 consists of a photo Darlington transistor optically coupled to a light emitting diode. Optical coupling between the input LED and output phototransistor allows for high isolation levels while maintaining low-level DC signal control capability. The SDD451 provides an optically isolated method of controlling many interface applications such as telecommunications, industrial control and instrumentation circuitry. FEATURES APPLICATIONS * * * High current transfer ratio (CTR: MIN.600% at If=1mA, Vce=2V) High input-to-output isolation package (3750 Vrms) 4 Pin small outline 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 OPTIONS/SUFFIXES MAXIMUM RATINGS PARAMETER Storage Temperature Operating Temperature Continuous Input Current 1. Anode 2. Cathode 3. Emitter 4. Collector * -TR Tape and Reel UNIT C C mA A V mW MIN -40 -40 TYP MAX 125 100 50 1 6 170 SCHEMATIC DIAGRAM Transient Input Current Reverse Input Control Voltage Output Power Dissipation APPROVALS * UL and C-UL approved File#E201932 rev 1.0 Solid State Optronics, Inc. 1.888.377.4776 www.ssousa.com SDD451 DC Input Optocoupler ELECTRICAL CHARACTERISTICS - 25 PARAMETER INPUT SPECIFICATIONS LED Forward Voltage LED Reverse Current V A 1.2 1.4 10 If = 20mA VR=4V UNIT MIN TYP MAX TEST CONDITIONS OUTPUT SPECIFICATIONS Collector-Emitter Breakdown Voltage Emitter-Collector Voltage Dark Current Floating Capacitance Saturation Voltage Current Transfer Ratio Rise Time Fall Time V V A pF V % s s 600 60 50 0.6 35 5 1 1 1 7500 Vce = 10V, If=0 V= 0V, f=1.0MHz If = 20mA, Ic = 1mA If = 1mA, Vce = 2V Ic = 2mA, Vce = 2V, Rc = 100 ohms Ic = 2mA, Vce = 2V, Rc = 100 ohms COUPLED SPECIFICATIONS Isolation Voltage Isolation Resistance Cut off Frequency V G kH z 5000 50 7 Ic = 2mA, Vcc = 5V, Rc = 100 ohms T = 1 minute rev 1.0 Solid State Optronics, Inc. 1.888.377.4776 www.ssousa.com SDD451 Fig.1 Forward Current vs. Ambient Temperature Fig.2 Collector Power Dissipation vs. Ambient Temperature Fig.3 Peak Forward Current vs. Duty Ratio Diode power dissipation Pc (mW) Ambient Temperature Ta (C) Ambient Temperature Ta (C) Peak forward Current IFM (mA) Forward Current IF (mA) Duty ratio Fig.4 Forward Current vs. Forward Voltage Fig.5 Current Transfer Ratio vs. Forward Current Fig.6 Collector Current vs. Collectoremitter Voltage Current transfer ratio CTR (%) Forward voltage VF (V) Forward Current IF (mA) Collector current IC (mA) Forward Current IF (mA) Collector Current Ic (mA) Fig.7 Relative Current Transfer Ratio vs. Ambient Temperature Collector-emitter saturation Voltage VCE (SAT) (V) Fig.8 Collector-emitter Saturation Voltage vs. Ambient Temperature Fig.9 Collector Dark Current vs. Ambient Temperature Relative current transfer ratio (%) Ambient Temperature Ta (C) Ambient Temperature Ta (C) Collector dark current ICEO (A) Ambient Temperature Ta (C) Fig.10 Response Time vs. Load Resistance Collector-emitter saturation voltage VCE (sat) (V) Load resistance RL (K ohm) Fig.11 Collector-emitter Saturation Voltage vs. Forward current Response Time (us) Ambient temperature Ta (C) rev 1.0 Solid State Optronics, Inc. 1.888.377.4776 www.ssousa.com SDD451 DC 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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