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| SDT450 DC Input Optocoupler DESCRIPTION The SDT450 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 SDT450 provides an optically isolated method of controlling many interface applications such as telecommunications, industrial control and instrumentation circuitry. FEATURES APPLICATIONS * * * Ultra miniature 4-pin small outline package High input-to-output isolation package (3,750 Vrms) CTR Range: 50%-600% * * * * * Home Appliances Office Automation Equipment Vending Machines Digital logic inputs Power Supplies OPTIONS/SUFFIXES* ABSOLUTE MAXIMUM RATINGS* PARAMETER Storage Temperature Operating Temperature UNIT C C mA A V mW MIN -55 -40 TYP MAX 125 100 50 1 6 170 * -TR Tape and Reel NOTE: Suffixes listed above are not included in marking on device for part number identification. SCHEMATIC DIAGRAM Input Forward Current 1 + Input 4 Collector Input Peak Forwad Current Reverse Input Voltage 2 - Input 3 Emitter Total Power Dissipation *The values indicated are absolute stress ratings. Functional operation of the device is not implied at these or any conditions in excess of those defined in electrical characteristics section of this document. Exposure to Absolute Ratings may cause permanent damage to the device and may adversely affect reliability. APPROVALS * UL / C-UL Approved File #E201932 (c) 2004 Solid State Optronics * San Jose, CA www.ssousa.com * +1.408.293.4600 Page 1 of 6 SDT450 rev 1.40 (10/25/2004) SDT450 DC Input Optocoupler ELECTRICAL CHARACTERISTICS - 25C PARAMETER INPUT SPECIFICATIONS Forward Voltage Reverse Current Terminal Capacitance V A pF 30 1.2 1.4 10 250 If = 20mA Vr = 4V V = 0, f = 1KHz UNIT MIN TYP MAX TEST CONDITIONS OUTPUT SPECIFICATIONS Collector-Emitter Breakdown Voltage Emitter-Collector Breakdown Voltage Collector Dark Current Floating Capacitance Vce Saturation Voltage Current Transfer Ratio Rise Time Fall Time V V A pF V % s s 50 5 4 0.6 0.1 60 5 0.1 1 0.3 600 20 20 Ic = 10uA, If = 0 If = 100uA, If = 0 Vce = 20V, If = 0 V= 0V, f = 1.0 MHz If = 20mA, Ic = 1mA If = 5mA, Vce = 5V Ic= 2mA, Vce =2V, RL = 100ohms Ic= 2mA, Vce = 2V, RL = 100 ohms COUPLED SPECIFICATIONS Isolation Voltage Isolation Resistance V G 3750 50 T = 1 minute DC500V CTR CLASSIFICATION -A -B -C -D -E % % % % % 80 130 200 300 50 160 260 400 600 600 (c) 2004 Solid State Optronics * San Jose, CA www.ssousa.com * +1.408.293.4600 Page 2 of 6 SDT450 rev 1.40 (10/25/2004) SDT450 DC Input Optocoupler PERFORMANCE DATA SDT450 Forward Current vs. Ambient Current N = 100, Ambient Temperature = 25C SDT450 Diode Power Dissipation vs. Ambient Temperture N = 100, Ambient Temperature = 25C Diode power dissipation P (mW) Forward current IF (mA) Ambient temperature Ta (C) Ambient temperature Ta (C) SDT450 Collector Power Dissipation vs. Ambient Temperature N = 100 SDT450 Total Power Dissipation vs. Ambient Temperature N = 100 Collector power dissipation PC (mW) Ambient temperature Ta (C) Total power dissipation PC (mW) Ambient temperature Ta (C) SDT450 Peak Forward Current vs. Duty Ratio N = 100, Ambient Temperature = 25C SDT450 Forward Current vs. Forward Voltage N = 100, Ambient Temperature = 25C Peak forward current IFM (mA) Forward current IF (mA) Duty ratio Forward voltage VF (V) (c) 2004 Solid State Optronics * San Jose, CA www.ssousa.com * +1.408.293.4600 Page 3 of 6 SDT450 rev 1.40 (10/25/2004) SDT450 DC Input Optocoupler PERFORMANCE DATA SDT450 Current Transfer Ratio vs. Forward Current N = 100, Ambient Temperature = 25C SDT450 Collector Current vs. Collector-Emitter Voltage N = 100, Ambient Temperature = 25C Current transfer ratio CTR (%) Forward current IF (mA) Collector-emitter voltage VCE (V) SDT450 Relative Current Transfer Ratio vs. Ambient Temperature N = 100 Collector current Ic (mA) SDT450 Collector-Emitter Saturation Voltage vs. Ambient Temperature N = 100 Collector-emitter saturation voltage VCE (SAT) (V) Relative current transfer ratio (%) Ambient Temperature Ta (C) Ambient Temperature Ta (C) SDT450 Collector Dark Current vs. Ambient Temperature N = 100 SDT450 Response Time vs. Load Resistance N = 100, Ambient Temperature = 25C Collector dark current ICEO (A) Ambient Temperature Ta (C) Response Time (us) Load resistance RL (K ohm) (c) 2004 Solid State Optronics * San Jose, CA www.ssousa.com * +1.408.293.4600 Page 4 of 6 SDT450 rev 1.40 (10/25/2004) SDT450 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 (c) 2004 Solid State Optronics * San Jose, CA www.ssousa.com * +1.408.293.4600 Page 5 of 6 SDT450 rev 1.40 (10/25/2004) SDT450 DC Input Optocoupler DISCLAIMER Solid State Optronics (SSO) makes no warranties or representations with regards to the completeness and accuracy of this document. SSO reserves the right to make changes to product description, specifications at any time without further notice. SSO shall not assume any liability arising out of the application or use of any product or circuit described herein. Neither circuit patent licenses nor indemnity are expressed or implied. Except as specified in SSO's Standard Terms & Conditions, SSO disclaims liability for consequential or other damage, and we make no other warranty, expressed or implied, including merchantability and fitness for particular use. LIFE SUPPORT POLICY SSO does not authorize use of its devices in life support applications wherein failure or malfunction of a device may lead to personal injury or death. Users of SSO devices in life support applications assume all risks of such use and agree to indemnify SSO against any and all damages resulting from such use. Life support devices are defined as devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when used properly in accordance with instructions for use can be reasonably expected to result in significant injury to the user, or (d) a critical component in any component of a life support device or system whose failure can be reasonably expected to cause failure of the life support device or system, or to affect its safety or effectiveness. (c) 2004 Solid State Optronics * San Jose, CA www.ssousa.com * +1.408.293.4600 Page 6 of 6 SDT450 rev 1.40 (10/25/2004) |
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