KD44CF WILLOW | Alldatasheet
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© 2008 TELEDYNE RELAYS (800) 284-7007 • www.teledynerelays.com KD44CF 1 KD44CF\\032008\\Q1 2.0A at 60Vdc Optically Isolated DC Solid-State Relay FEATURES/BENEFITS
- Short-circuit and overload protected: Prevents damage to relay and system wiring.
- Flat trip curve (temperature compensated): Stable predictable overload protection.
- Trip status: Discrete signal indicates an overload has occured, for failure analysis and diagnostics.
- High surge capability: Prevents safe transients from causing erroneous protection trips.
- TTL and CMOS compatible: Standard system interface.
- Low ON resistance power FET output: Virtually no offset and very low output voltage drop.
- Optical Isolation: Isolates output switching transients from system control signals.
- Tested to MIL-PRF-28750 test methods.
- Meets requirements of MIL-STD-704.
DESCRIPTION
The KD44CF solid-state relay is screened utilizing the test methods of MIL-PRF-28750 and is packaged in a low-profile hermetically sealed case. These relays are constructed using state-of-the-art hybrid technology. They feature fully floating power FET outputs that allow the load to be connected to either output terminal and provides a low ON resistance. The input (control) and the output are optically isolated to protect input logic circuits from output transients. The short-circuit/overload protection is temperature compensated, and has a flat trip characteristic over the operating temperature range. These relays will not be damaged by a continuous short circuit on the load, or by being turned on into a short circuit. A trip status indicator turns on when an overcurrent condition has occured, and the short-circuit protection has been activated. Cycling the control voltage resets the output switch and trip status indicator. Series KD44CF Part Number* Relay Description KD44CF Solid-State DC Relay, with Flat Trip Short-Circuit Protection and Trip Status * The Y suffix denotes parameters tested to MIL-PRF-28750 specifications. The W suffix denotes parameters tested to Teledyne specifications. ELECTRICAL SPECIFICATIONS (-55°C TO +105°C AMBIENT UNLESS OTHERWISE NOTED) INPUT (CONTROL) SPECIFICATION When used in 2 terminal configuration (TTL or direct control) (See Fig. 1) Min Typ Max Units Input Current @ VBIAS = 5 Vdc (See Fig. 2, 4) 15 mAdc Turn-Off Voltage (Guaranteed Off) 1.5 Vdc Turn-On Voltage (Guaranteed On) 3.8 Vdc Reverse Voltage Protection -32 Vdc Input Supply Range (See Note 1) 3.8 32 Vdc INPUT (CONTROL) SPECIFICATION When used in 3 terminal configuration (CMOS or open collector TTL) (See Fig. 1) Min Typ Max Units Control Current V input = 5 Vdc 250 µAdc V input = 18 Vdc 1 mAdc Control Voltage Range 0 18 Vdc Bias Supply Voltage Range (See Note 1) 3.8 32 Vdc Bias Supply Current (See Fig. 2) 16 mAdc Turn-Off Voltage (Guaranteed Off) 3.2 Vdc Turn-On Voltage (Guaranteed On) 0.3 Vdc OUTPUT (LOAD) SPECIFICATIONS (See Note 2, 3 & 6) Min Typ Max Units Continuous Load Current (See Fig. 3) 2 Adc Leakage Current VLOAD = 60 Vdc 40 µA Output Voltage Drop 0.60 Vdc Continuous Operating Load Voltage 60 Vdc Transient Blocking Voltage 80 Vdc ON Resistance 0.30 Ohm
KD44CF 2 SPECIFICATIONS ARE SUBjECT TO CHANGE WITHOUT NOTICE © 2008 TELEDYNE RELAYS KD44CF\\032008\\Q1 Series KD44CF BLOCK DIAGRAM OUTPUT (LOAD) SPECIFICATIONS (See Note 2, 3 & 6) Min Typ Max Units Turn-Off Time (See Fig. 6) 1 ms Turn-On Time (See Fig. 6) 5 ms Output Capacitance, 25 Vdc, 100 KHz 1000 pF Input to Output Capacitance 15 pF Dielectric Strength 1000 Vac Insulation Resistance @ 500 Vdc 109 Ohm Output junction Temperature 130 °C @ ILOAD = maximum rated current Thermal Resistance junction to Ambient(θjA) 30 °C/W Thermal Resistance junction to Case(θjC) 10 °C/W STATUS OUTPUT SPECIFICATIONS Min Typ Max Units Status Supply Voltage 32 Vdc Status Leakage Current 15 Vdc 4 µA Status On Voltage @ 15 mA 0.4 Vdc STATUS OUTPUT TRUTH TABLE Status Output State Control Input Output (Load) State Off (High) Low On On (Low) Low Tripped Off (High) High Off On (Low) High Relay Malfunction ENVIRONMENTAL SPECIFICATIONS Min Typ Max Units Temperature Range Operating -55 +95 °C Storage -55 +125 °C Vibration (10–3000 Hz) 100 g Constant Acceleration 5000 g Shock, 0.5 ms 1500 g Enclosure: Hermetically Sealed DIP Leak Rate: 1 x 10-8 CC/Sec Maximum Material: Header: Cold Rolled Steel Nickel Plated Pins: Copper Core Weight: 20 grams Tolerance: XXX = ± .005 DIMENSIONS ARE SHOWN IN INCHES (MILLI- METERS) PIN-OUTS PIN NO. FUNCTION
1 CONTROL
3 GND
9 -V (OUT) 12 +V (OUT)