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| SDT470 DC Input Optocoupler DESCRIPTION The SDT470 consists of a phototransistor 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 SDT470 provides an optically isolated method of controlling many interface applications such as telecommunications, industrial control and instrumentation circuitry. FEATURES APPLICATIONS * * * * * High input-to-output isolation package (2500 Vrms) Low input power consumption High stability Ultra miniature 4-pin small outline package CTR: 80%-600% * * * * * * * * 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 MAXIMUM RATINGS PARAMETER Storage Temperature Operating Temperature UNIT C C mA A V mW MIN -55 -40 TYP MAX 125 100 50 1 6 120 * -TR Tape and Reel SCHEMATIC DIAGRAM 1 + Input 4 Collector Input Forward Current Input Peak Forwad Current 2 - Input 3 Emitter Reverse Input 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 SDT470 DC Input Optocoupler ELECTRICAL CHARACTERISTICS - 25 PARAMETER INPUT SPECIFICATIONS Forward Voltage Reverse Current V A 1.2 1.4 5 If = 5mA Vr = 5V UNIT MIN TYP MAX TEST CONDITIONS OUTPUT SPECIFICATIONS Collector-Emitter Breakdown Voltage Emitter-Collector Breakdown Voltage Dark Current Floating Capacitance Vce Saturation Voltage Current Transfer Ratio Rise Time Fall Time V V A pF V % s s 80 3 5 0.6 0.1 80 5 0.1 1 0.3 600 Ic = 1uA If = 100uA Vce = 20V, IF=0 V= 0V, f=1.0 MHz If = 10mA, Ic = 1mA If = 5mA, Vce = 5V Ic= 2mA, Vce =5V, Rc = 100ohms Ic= 2mA, Vce = 5V, Rc = 100 ohms COUPLED SPECIFICATIONS Isolation Voltage Isolation Resistance V G 2500 50 T = 1 minute Outside Dimension:Unit (mm) TOLERANCE :+ 0.2mm rev 1.0 Solid State Optronics, Inc. 1.888.377.4776 www.ssousa.com SDT470 Test circuit for switching time. Fig.1 Current Transfer Ratio vs. Forward Current Collector Power Dissipation Pc (mW) Forward Current IF (mA) Fig.2 Collector Power Dissipation vs. Ambient Temperature Current transfer ratio CTR (%) Ambient Temperature Ta (C) Fig.3 Collector Dark Current vs. Ambient Temperature Fig.4 Forward Current vs. Ambient Temperature Fig.5 Forward Current vs. Forward Voltage Collector Dark Current Iceo (A) Forward Current IF (mA) Ambient Temperature Ta (C) Ambient Temperature Ta (C) Forward Current IF (mA) Forward Voltage VF (V) Fig.6 Collector Current vs. Collectoremitter Voltage Fig.7 Relative Current Transfer Ratio vs. Ambient Temperature Collector-emitter Saturation Voltage Vce (V) Ambient Temperature Ta (C) Fig.8 Collector-emitter Saturation Voltage vs. Ambient Temperature Collector-emitter Voltage VCE (V) Relative Current Transfer Ratio (%) Collector Current Ic (mA) Ambient Temperature Ta (C) Fig.9 Collector-emitter Saturation Voltage vs. Forward Current Collector-emitter Saturation Voltage Vce (V) Fig.10 Response Time vs. Load Resistance Fig.11 Response Time vs. Load Resistance Forward Current IF (mA) Response Rise Time (us) Load Resistance RL(K ohm) Response Rise Time (us) Load Resistance RL(K ohm) rev 1.0 Solid State Optronics, Inc. 1.888.377.4776 www.ssousa.com |
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