FR75-1

FR75-1 TELEDYNE | Alldatasheet

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Technical content

FR75-1 38 SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE © 2002 TELEDYNE RELAYS FR75-1\\072002\\Q1 1.0A, 60 Vdc Optically Isolated Short-Circuit Protected FEATURES/BENEFITS

• Short-circuit protected: Prevents damage to system components, assemblies and system wiring
• Optical isolation: Isolates control circuits from load transients and eliminates ground loops and signal ground noise
• Low off-state leakage: For high off-state impedance
• Switches high currents: To 1.0 Adc
• High noise immunity: Control signals isolated from switching noise
• High dielectric strength: For safety and for protection of control and signal level circuits

DESCRIPTION

The FR75-1 solid-state relay utilizes a power FET switch that is protected against short circuits and overload currents. The short-circuit protection feature provides protection when a short or overload occurs while the relay is on as well as when the relay is switched into a short. In either case, the relay will sense the short-circuit condition and then block it indefinitely until the short is removed and the unit is reset by cycling the input control. Using the FR75-1 to switch power sources and loads prevents damage to system assemblies and system wiring. The power FET output offers low “ON” resistance and can switch loads in either the high or the low side of the power line. The FR75-1 is packaged in a low-profile mini- DIP package. Part Number Description FR75-1 1A, 60 Vdc short-circuit protected solid-state relay for through-hole mount ELECTRICAL SPECIFICATIONS (–40°C to +85°C ambient temperature unless otherwise specified) INPUT (CONTROL) SPECIFICATIONS Min Max Units Input Voltage Range 4.5 5.5 Vdc (See Note 1) Input Current @ 5 Vdc (See Figure 2) 15 mA Must Turn-On Voltage 3.8 Vdc Must Turn-Off Voltage 1.5 Vdc Must Turn-Off Current 50 µAdc Reserve Polarity –10 Vdc OUTPUT (LOAD) SPECIFICATIONS Min Max Units Load Voltage Range 60 Vdc Output Current Rating (See Figure 4) 1.0 Adc Leakage Current at Rated Voltage 100 µAdc Transient Blocking Voltage 80 Vdc Output Capacitance @25Vdc (25 °C) 600 pF Output Voltage Drop 0.32 Vdc On Resistance 0.32 Ohm Turn-On Time 3.0 ms Turn-Off Time 0.3 ms Trip Overload (See Figure 6) 6 Adc Series FR75-1 MECHANICAL SPECIFICATION Figure 1 – FR75-1 mechanical specification; dimensions in inches (mm) FR75-1 TELEDYNE 0.463 MAX (11.76) 0.300 (7.62) 0.010 (0.254) ±0.003 0.017 (0.432) +0.002 –0.001 0.423 MAX (10.74) 0.200 (5.08) 0.109 REF (2.769)

0.079 REF

(2.007)

0.70 MIN

(17.78)0.190 MAX (4.83) WEIGHT: .07 OZ. (2g) TOP VIEW BOTTOM VIEW

• Material and Plating: Pins and Header — Kovar gold plated; Cover — Nickel
• Tolerance: ±0.005 inch unless otherwise specified

© 2002 TELEDYNE RELAYS (800) 284-7007 • www.teledynerelays.com FR75-1 39 FR75-1\\072002\\Q1 FR75-1 INPUT CURRENT VS. INPUT VOLTAGE Figure 2 — FR75-1 input current vs. input voltage Figure 4 — FR75-1 load current vs. ambient temperature FUNCTIONAL BLOCK DIAGRAM GENERAL SPECIFICATIONS (+25°C ambient temperature unless otherwise specified) ENVIRONMENTAL SPECIFICATION Min Max Units Operating Temperature – 40 +85 °C Storage Temperature – 55 +125 °C Junction Temperature @ 1A +125 °C Thermal Resistance θJA 125 °C/W Shock 1500 g Vibration 100 g Dielectric Strength 500 Vac Insulation Resistance (@500 Vdc) 10 9 Ohm Input to Output Capacitance 5 pF Altitude 55,000 ft. Resistance to Soldering Heat MIL STD 202, method 210 Solderability MIL STD 202, method 208 Thermal Shock MIL STD 202, method 107 Input Current (mA) Input Voltage (V) 0/nonmarkingreturn 1/nonmarkingreturn 2/nonmarkingreturn 3/nonmarkingreturn 4/nonmarkingreturn 5/nonmarkingreturn 6/nonmarkingreturn 7/nonmarkingreturn 8/nonmarkingreturn 9/nonmarkingreturn 10 LOAD CURRENT VS. AMBIENT TEMPERATURE Ambient Temperature (°C) Load Current (A) -55 -35 -15 5 25 45 65 85 105 12 5 1.2 1.0 0.8 0.6 0.4 0.2 +IN (1) INPUT with LEDs -IN (3) Optical Isolation Detection Circuit Switching Circuit Output Switch (MOSFET) with Current Sense +OUT (4) –OUT (6) Figure 3 — FR75-1 functional block diagram FR75-1 Control +in –in +5 Vdc Bias –out +out

6 LOAD

3 – Figure 5 — FR75-1 typical wiring diagram TYPICAL WIRING DIAGRAM

FR75-1 40 SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE © 2002 TELEDYNE RELAYS FR75-1\\072002\\Q1 NOTES: 1. For input voltages greater than 6 volts, use an external resistor in series with the relay input. Select resistor value with the following equation: Rext. = (Vin–6Vdc)/15mA 2. Unless otherwise specified: conformance testing is at room temperature; the input voltage is 5 Vdc or zero volts as required; the output load is 48 Vdc, 1 amp. 3. With a shorted load condition, system inductance shall be limited to 50 µH. 4. Relay input voltage transitions should be less than 1.0 millisecond. 5. Maximum load current ratings are with the relay in free air and soldered to a printed circuit board. 6. Loads may be attached to either the positive or negative output terminal. 7. Timing is measured from the input voltage transition to the 10% or 90% point on the output voltage off-to-on or on-to-off transition. Rise and fall times are measured from the 10 to 90% points on the output voltage transition. 8. Hermeticity is not a requirement. OVERLOAD TRIP CURRENT VS. TIME Figure 6 — FR75-1 overload trip current vs. time FR75-1 0.01 0.1 1.0 10.0 100 1000 Typical @ +25°C MUST NOT TRIP MUST TRIP Typical @ +85°C Typical @ –40°C Load Current (A) Trip Time (sec)