MAXIM MAX6418UK33+T

The MAX6412–MAX6420 low-power microprocessor supervisor circuits monitor system voltages from 1.6V to 5V. These devices are designed to assert a reset signal whenever the VCC supply voltage or RESET IN falls below its reset threshold or the manual reset input is asserted. The reset output remains asserted for the reset timeout period after VCC and RESET IN rise above the reset threshold and the manual reset input is deasserted. The reset timeout is externally set by a capacitor to provide more flexibility. The MAX6412/MAX6413/MAX6414 feature fixed thresholds from 1.575V to 5V in approximately 100mV increments and a manual reset input. The MAX6415/MAX6416/ MAX6417 are offered with an adjustable reset input that can monitor voltages down to 1.26V and the MAX6418/ MAX6419/MAX6420 are offered with one fixed input and one adjustable input to monitor dual-voltage systems. The MAX6412/MAX6415/MAX6418 have an active-low, push-pull reset output. The MAX6413/MAX6416/ MAX6419 have an active-high, push-pull reset output and the MAX6414/MAX6417/MAX6420 have an active-low, open-drain reset output. All of these devices are offered in a SOT23-5 package and are fully specified from -40°C to +125°C. The MAX6412–MAX6420 low-power microprocessor (μP) supervisory circuits provide maximum adjustability for supply-voltage monitoring and reset functionality. In addition, the MAX6412–MAX6420 reset timeout period is adjustable using an external capacitor. The MAX6412/MAX6413/MAX6414 have factory-trimmed reset threshold voltages in approximately 100mV increments from 1.575V to 5.0V with a manual reset input. The MAX6415/MAX6416/MAX6417 contain a reset threshold that can be adjusted to any voltage above 1.26V using external resistors. The MAX6418/MAX6419/MAX6420 offer both a factory-trimmed reset threshold and an adjustable reset threshold input for dual-voltage monitoring. A reset signal is asserted when VCC and/or RESET IN falls below the preset values or when MR is asserted.

• Monitor System Voltages from 1.6V to 5V
• Capacitor-Adjustable Reset Timeout Period
• Manual Reset Input (MAX6412/MAX6413/MAX6414)
• Adjustable Reset Input Option (MAX6415–MAX6420)
• Dual-Voltage Monitoring (MAX6418/MAX6419/MAX6420)
• Low Quiescent Current 1.7μA, typ
• 3 RESET Output Options
• Push-Pull RESET
• Push-Pull RESET
• Open-Drain RESET
• Guaranteed Reset Valid to VCC = 1V
• Power-Supply Transient Immunity
• Small SOT23-5 Packages
• AEC-Q100 Qualified

• Automotive
• Medical Equipment
• Intelligent Instruments
• Portable Equipment
• Battery-Powered Computers/Controllers
• Embedded Controllers
• Critical μP Monitoring
• Set-Top Boxes
• Computers