DIONICS, INC. Phone: (516) 997-7474 Fax: (516) 997-7479 Website: www.dionics-usa.com 65 Rushmore Street Westbury, NY 11590 DIH-134 Power MOSFET Dual N/O SPST Photovoltaic DC Relay Features: • • • • • • • Applications: Package Contains Two N/O DC Relays; Fast Switching Speeds Optically Isolated to 400V DC. Immune to False Triggering Small size, Hermetic 8-pin SIP Package Designed to Meet MIL-R28750 and 28V DC System Surge and Spike Requirement of MIL STD-704. Y-Level MIL-Screening Available (DIH-134Y) • • • • • • • Replacement of Mechanical Relays Motor Control & Power Control Aircraft Flight Control Systems A.T.E (Automatic Test Equipment) Load Control From Processor I/O Ports Power Supply Circuits Medical Electronics Description: The DIH-134 is a State-of-the-Art Photovoltaic Solid State Relay designed for 28V DC Aircraft power applications where speed, current overload protection and immunity to transient voltages are critical. The DIH-134 contains current limiting networks and thermally sensitive integrated circuits that disable the output, if the output MOSFETs approach an unsafe operating temperature. Because the thermally sensitive integrated circuits have built-in hysteresis, the output MOSFETs are automatically restarted when a safe temperature is reached. This auto restart feature eliminates the need for system restart signals. If the overload condition continues to exist, the cycle is repeated; if the overload condition is removed, the relay returns to normal operation. The package contains two independent N/O relays, with separate LED inputs and optically isolated power MOSFET outputs. Each relay, A or B, is capable of carrying 350mA DC continuous current and 500mA DC peak current. Each LED optically couples to a Photovoltaic (PV) IC chip which responds by generating a voltage. This voltage is internally connected to the Gate and Source terminals of the output MOSFETs, thus controlling their current. The DIH-134 is also available screened to military specifications, as required. Pin Designations Relay A Relay B Input + Input + 1 5 Input Input 2 6 3 Output - 7 Output 4 Output + 8 Output + * Package Layout: Weight 1.5 Grams * DIH-134 Equivalent Circuit DIONICS INC. 100 Ohms A-1 ; B-5 DIH-134 LED PV Rs Thermal Sensor 0.120 Max. 0.780 Max. 0.040 xxxx 0.270 Max. A-3 ; B-7 0.300 Min. NPN A-2 ; B-6 0.020 Thermal Link A-4 ; B-8 0.100 0.046 Typ. 0.010 Enh. 02/2002 DIH-134: Power MOSFET Dual SPST Photovoltaic DC Relay Electrical Characteristics (Per Relay @ 25 0 C unless otherwise specified): v Relay A: Normally Open (N/O) v Relay B: Normally Open (N/O) v Input Characteristics Symbol Iin Vin Vrev. Von Voff Parameter Input Current Input Voltage Drop Reverse Voltage On State Voltage Off State Voltage Min. 5.0 1.3 3.5 Typ. 15.0 Max. Unit 24.0 mA 1.5 V 10.0 V V 1.5 V v Output Characteristics Symbol Parameter Iload Load Current Ron On Resistance @ Ta = 85 0C Ileak Leakage Current Riso Input/Output Resistance Vop Operating Voltage BV Breakdown Voltage Ton Turn-On Time Toff Turn-Off Time Viso Input-Output Isolation Maximum Power Dissipation P Typ. 108 28 150 150 Max. 350 / 500 3 4 10 30.3 80 300 300 400 400 Unit mA Ω Ω µA Ω VDC VDC µs µs V mW Condition Continuous / Peak Iin=18 (mA); Iload = 100mA Iin=18 (mA); Iload = 100mA Vop=75 (V) Limited by Power Dissipation At 100 µA Vin= 4.5V, P.W* = 100µs; Vop= 30V Vin= 4.5V, P.W =100µs; Vop= 30V DC In Free Air PW*: Pulse Width. v Environmental Ratings: v Timing Diagram • • • 5V 90% Input 10% T(on) 0V T(off) Storage Temperature: -250C to +1250C Constant Acceleration: 5000G Hermeticity: + Gross 1x10-5 atm cc/sec + Fine 5 x 10-8 atm cc/s ** Td(on) Vop ** When screened to MIL-Specs. Td(off) 90% 90% Output 0V 10% 10% 02/2002