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MAX6887FETE Datasheet(PDF) 4 Page - Maxim Integrated Products |
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MAX6887FETE Datasheet(HTML) 4 Page - Maxim Integrated Products |
4 / 14 page 1.25 1.50 1.75 2.00 2.50 2.25 2.75 3.00 1.00 MR TO RESET OUTPUT PROPAGATION DELAY vs. TEMPERATURE TEMPERATURE ( °C) 60 35 10 -15 -40 85 Hex/Quad, Power-Supply Supervisory Circuits 4 _______________________________________________________________________________________ 21 22 23 24 25 26 27 28 29 30 20 IN_ TO RESET OR OV PROPAGATION DELAY vs. TEMPERATURE TEMPERATURE ( °C) 60 35 10 -15 -40 85 100mV OVERDRIVE 1.525 1.550 1.575 1.600 1.650 1.625 1.675 1.700 1.500 WATCHDOG TIMEOUT PERIOD vs. TEMPERATURE TEMPERATURE ( °C) 60 35 10 -15 -40 85 0.998 0.997 0.996 0.999 1.000 1.001 1.003 1.002 1.004 1.005 0.995 NORMALIZED IN_ THRESHOLD vs. TEMPERATURE TEMPERATURE ( °C) 60 35 10 -15 -40 85 100 10 1 1000 MAXIMUM IN_ TRANSIENT vs. IN_THRESHOLD OVERDRIVE IN_ THRESHOLD OVERDRIVE (mV) 25 50 75 100 125 150 175 200 0 PO_ ASSERTION OCCURS ABOVE THIS LINE OUTPUT-VOLTAGE LOW vs. SINK CURRENT SINK CURRENT (mA) 8 6 24 50 100 150 200 300 250 350 400 0 010 12 14 Pin Description PIN MAX6887 MAX6888 NAME FUNCTION 11 RESET Open-Drain, Active-Low Reset Output. RESET asserts when any input voltage falls below its undervoltage threshold or when MR is pulled low. RESET remains low for 200ms after all assertion-causing conditions are cleared. An external pullup resister is required. 22 WDO Open-Drain, Active-Low Watchdog Timer Output. Logic output for the watchdog timer function. WDO goes low when WDI is not strobed high-to-low or low-to-high within the watchdog timeout period. 33 OV Open-Drain Active-Low Overvoltage Output. OV asserts when any input voltage exceeds its overvoltage threshold. OV remains low for 25µs after all overvoltage conditions are cleared. An external pullup resistor is required. 4 4 GND Ground Typical Operating Characteristics (continued) (VIN1–VIN4 or VCC = 5V, WDI = GND, MARGIN = MR = BP, TA = +25°C, unless otherwise noted.) |
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