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 • Home Appliances • High input-to-output isolation package (3,750 Vrms) • Office Automation Equipment • CTR Range: 50%-600% • Vending Machines • Digital logic inputs • Power Supplies OPTIONS/SUFFIXES* • -TR ABSOLUTE MAXIMUM RATINGS* PARAMETER UNIT MIN Storage Temperature °C -55 125 Operating Temperature °C -40 100 Input Forward Current mA 50 Input Peak Forwad Current A 1 Reverse Input Voltage V 6 Total Power Dissipation mW 170 Tape and Reel NOTE: Suffixes listed above are not included in marking on device for part number identification. TYP MAX SCHEMATIC DIAGRAM 1 4 + Input Collector 2 3 - Input Emitter *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 • © 2007 Solid State Optronics • San José, CA www.ssousa.com • +1.408.293.4600 Page 1 of 6 UL / C-UL Approved File #E201932 SDT450 rev 1.41 (04/27/2007) SDT450 DC Input Optocoupler ELECTRICAL CHARACTERISTICS - 25°C PARAMETER UNIT MIN TYP MAX TEST CONDITIONS 1.2 1.4 If = 20mA 10 Vr = 4V 250 V = 0, f = 1KHz INPUT SPECIFICATIONS Forward Voltage V Reverse Current µA Terminal Capacitance pF 30 OUTPUT SPECIFICATIONS Collector-Emitter Breakdown Voltage V 60 Ic = 10uA, If = 0 Emitter-Collector Breakdown Voltage V 5 If = 100uA, If = 0 Collector Dark Current µA Floating Capacitance Vce Saturation Voltage Current Transfer Ratio % Rise Time µs µs Fall Time 0.1 Vce = 20V, If = 0 pF 0.6 1 V= 0V, f = 1.0 MHz V 0.1 0.3 If = 20mA, Ic = 1mA 600 If = 5mA, Vce = 5V 5 20 Ic= 2mA, Vce =2V, RL = 100ohms 4 20 Ic= 2mA, Vce = 2V, RL = 100 ohms 50 COUPLED SPECIFICATIONS Isolation Voltage Isolation Resistance V 3750 T = 1 minute GΩ 50 -A % 80 160 -B % 130 260 -C % 200 400 -D % 300 600 % 50 600 DC500V CTR CLASSIFICATION -E © 2007 Solid State Optronics • San José, CA www.ssousa.com • +1.408.293.4600 Page 2 of 6 SDT450 rev 1.41 (04/27/2007) SDT450 DC Input Optocoupler PERFORMANCE DATA SDT450 SDT450 Forward Current vs. Ambient Temperature Diode Power Dissipation vs. Ambient Temperture N = 100, Ambient Temperature = 25°C Forward current IF (mA) Diode power dissipation P (mW) N = 100, Ambient Temperature = 25°C Ambient temperature Ta (°C) Ambient temperature Ta (°C) SDT450 SDT450 Collector Power Dissipation vs. Ambient Temperature Total Power Dissipation vs. Ambient Temperature N = 100 Total power dissipation PC (mW) Collector power dissipation PC (mW) N = 100 Ambient temperature Ta (°C) Ambient temperature Ta (°C) SDT450 SDT450 Peak Forward Current vs. Duty Ratio Forward Current vs. Forward Voltage N = 100, Ambient Temperature = 25°C Forward current IF (mA) Peak forward current IFM (mA) N = 100, Ambient Temperature = 25°C Forward voltage VF (V) Duty ratio © 2007 Solid State Optronics • San José, CA www.ssousa.com • +1.408.293.4600 Page 3 of 6 SDT450 rev 1.41 (04/27/2007) SDT450 DC Input Optocoupler PERFORMANCE DATA SDT450 SDT450 Current Transfer Ratio vs. Forward Current Collector Current vs. Collector-Emitter Voltage N = 100, Ambient Temperature = 25°C Collector current Ic (mA) Current transfer ratio CTR (%) N = 100, Ambient Temperature = 25°C Forward current IF (mA) Collector-emitter voltage VCE (V) SDT450 Relative Current Transfer Ratio vs. Ambient Temperature SDT450 Collector-Emitter Saturation Voltage vs. Ambient Temperature N = 100 Relative current transfer ratio (%) Collector-emitter saturation voltage VCE (SAT) (V) N = 100 Ambient Temperature Ta (°C) Ambient Temperature Ta (°C) SDT450 SDT450 Response Time vs. Load Resistance Collector Dark Current vs. Ambient Temperature N = 100, Ambient Temperature = 25°C Response Time (us) Collector dark current ICEO (A) N = 100 Ambient Temperature Ta (°C) © 2007 Solid State Optronics • San José, CA www.ssousa.com • +1.408.293.4600 Load resistance RL (K ohm) Page 4 of 6 SDT450 rev 1.41 (04/27/2007) 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 .905” ± 0.005” (2.30 ± 0.05mm) BACK VIEW © 2007 Solid State Optronics • San José, CA www.ssousa.com • +1.408.293.4600 Page 5 of 6 SDT450 rev 1.41 (04/27/2007) 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. © 2007 Solid State Optronics • San José, CA www.ssousa.com • +1.408.293.4600 Page 6 of 6 SDT450 rev 1.41 (04/27/2007)