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KD44CF Fiches technique(PDF) 4 Page - Willow Technologies Ltd |
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KD44CF Fiches technique(HTML) 4 Page - Willow Technologies Ltd |
4 / 4 page KD44CF 4 SPECIFICATIONS ARE SUBjECT TO CHANGE WITHOUT NOTICE © 2008 TELEDYNE RELAYS KD44CF\032008\Q1 NOTES: 1. Control input is compatible with CMOS or open collector TTL (with pull up resistor). For bias voltages above 6V, a series resistor is required. Use the standard resistor value equal to or less than the value found in Figure 4. 2. The rated input voltage is 5V for all tests unless otherwise specified. 3. To calculate the maximum ON resistance for a given junction temperature, find the normalized ON resistance factor (NR) from Figure 5. Calculate the new ON resistance as follows: R (ON) = NR • RON @ 25°C + 0.15 4. Overload testing to the requirements of MIL-PRF-28750 is constrained to the limits imposed by the short circuit protection characteristics as defined in this specification. System series inductance for “shorted-load” mode of operation should be 30 µH maximum. Maximum repetition rate into a shorted load should not exceed 1 Hz. 5. A status pull up resistor is required for proper operation of the status output. Determine the current (Iso) required by the status interface. Calculate the current (Is) through the status resistor such that the sink current through the status output does not exceed 15 mA. R STATUS = V STATUS - 0.4V I S 6. Inductive loads should be diode suppressed. Input transitions should be ≤1 ms duration and the input drive should be a bounceless contact type. 7. Input transitions should be ≤ 1 msec. Series KD44CF TYPICAL TRIP CURRENT CHARACTERISTICS FOR SHORT CIRCUIT CONDITIONS FIGURE 7 TYPICAL OVERLOAD CURRENT VS TRIP TIME FIGURE 5 OUTPUT TURN-ON AND OFF TIMING FIGURE 6 TIME TO TRIP SECONDS TIME TO TRIP SECONDS PULSEWIDTHS ARE TAKEN AT 10% PEAK VALUE |
Numéro de pièce similaire - KD44CF |
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Description similaire - KD44CF |
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