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MAX13038ATX+ Datasheet(PDF) 5 Page - Maxim Integrated Products |
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MAX13038ATX+ Datasheet(HTML) 5 Page - Maxim Integrated Products |
5 / 22 page Automotive Contact Monitor and Level Shifters with LDO Regulator _______________________________________________________________________________________ 5 TIMING CHARACTERISTICS (continued) (BAT = +6V to +26V, TA = -40°C to +125°C, unless otherwise noted. Typical values are at BAT = +14V, TA = +25°C.) (Note 2) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS SDI to Falling Edge of CLK Required Setup Time tSI(SU) Input rise/fall time < 2ns, Figure 1 30 ns Falling Edge of CLK to SDI Required Hold Time tSI(HOLD) Input rise/fall time < 2ns, Figure 1 20 ns Time from Falling Edge of CS to SDO Low Impedance tSO(EN) Input rise/fall time < 2ns, Figure 1 55 ns Time from Rising Edge of CS to SDO High Impedance tSO(DIS) Figures 1 and 2 55 ns Time from Rising Edge of CLK to SDO Data Valid tVALID CSDO =15pF, Figure 1 70 ms CTDEB = 500pF 3.18 5.9 9.42 ms Debounce Time tDEB CTDEB = 10nF 63 120 188 ms Scanning Time Pulse tSCAN 130 250 400 µs Scanning Time Period tSCAN-P SC0 = 0, SC1 = 1, SC2 = 1 4 8 14 ms Wetting Time Pulse tWETT WTOFF = 0 10 21 35 ms Time from Shutdown to Normal Operation tSD SD low-to-high transition to input monitoring enabled 200 µs Time from SCAN Mode to Normal Operation tSM (Note 8) 500 µs Reset Output Pulse Width tRST CTD = 10nF (Figure 3) 10 21 36 ms Watchdog Timeout Period 1 tWD1 CTD = 10nF, time before INT goes low (Figure 3) 40 84 144 ms Watchdog Timeout Period 2 tWD2 CTD = 10nF, time before RST goes low (Figure 3) 2 x tWD1 ms Minimum Watchdog Timeout Reset on WDI tWDI 300 ns Note 2: All units are 100% production tested at TA = 125°C. Limits over the operating temperature range are guaranteed by design and not production tested. Note 3: VTH_C = (VTH_HIGH + VTH_LOW) / 2. Note 4: VTH_HYS = (VTH_HIGH - VTH_LOW). Note 5: Wetting current rise/fall time is measured as the time it takes to go from 20% to 80% of the maximum wetting current. Note 6: TSHDN is the temperature at which the wetting currents and LDO are disabled. Note 7: TWARN is the temperature at which only the wetting currents are disabled. Note 8: When exiting SCAN mode to enter Normal Mode (through SPI) any input change is ignored for 500µs (typ) to allow correct wake-up of input comparators. After this time elapses, the inputs are monitored in continuous mode. |
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