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MAX16052 Datasheet(PDF) 7 Page - Maxim Integrated Products |
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MAX16052 Datasheet(HTML) 7 Page - Maxim Integrated Products |
7 / 12 page High-Voltage, Adjustable Sequencing/Supervisory Circuits _______________________________________________________________________________________ 7 Pin Description PIN NAME FUNCTION 1EN Active-High Logic-Enable Input. Drive EN low to immediately deassert the output to its false state (OUT = low) independent of VIN. With VIN above VTH, drive EN high to assert the output to its true state (OUT = high) after the adjustable delay period. Connect EN to VCC, if not used. 2 GND Ground 3IN High-Impedance Monitor Input. Connect IN to an external resistive divider to set the desired monitor threshold. The output changes state when VIN rises above 0.5V and when VIN falls below 0.495V. 4 OUT Active-High Sequencer/Monitor Output. Open-drain (MAX16052) or push-pull (MAX16053). OUT is asserted to its true state (OUT = high) when VIN is above VTH and the enable input is in its true state (EN = high) after the capacitor-adjusted delay period. OUT is deasserted to its false state (OUT = low) immediately after VIN drops below 0.495V or the enable input is in its false state (EN = low). The MAX16052 open-drain output requires an external pullup resistor. 5VCC Supply Voltage Input. Connect a 2.25V to 28V supply to VCC to power the device. For noisy systems, bypass with a 0.1µF ceramic capacitor to GND. 6 CDELAY Capacitor-Adjustable Delay Input. Connect an external capacitor (CCDELAY) from CDELAY to GND to set the IN-to-OUT and EN-to-OUT delay period. For VIN rising, tDELAY = (CCDELAY x 4.0 x 106) + 30µs. For EN rising, tPROP = (CCDELAY x 4.0 x 106) + 14µs. EN LEAKAGE CURRENT vs. TEMPERATURE TEMPERATURE ( °C) 110 95 65 80 -10 5 20 35 50 -25 -8 -6 -4 -2 0 2 4 6 8 10 -10 -40 125 VCC = 28V VCC = VEN = VIN EN LEAKAGE CURRENT vs. IN VOLTAGE VEN (V) 26 24 20 22 14 12 18 16 46 10 8 2 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 1.0 -1.0 028 VCC = 28V VCC = VIN Typical Operating Characteristics (continued) (VCC = 3.3V and TA = +25°C, unless otherwise noted.) |
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