MAX6418UK29+T

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Power Management Integrated Circuits (PMIC) have become increasingly important components in products supplied to customers, as they are essential in controlling supply voltages and preventing damage to devices. Supervisors are important members of PMIC family as they can provide necessary protection and ensure that a system constantly runs in its most reliable state. The MAX6418UK29+T is a supervise IC that belongs to the MAX6418 series. This article discusses the application field and working principle of the MAX6418UK29+T.

The MAX6418UK29+T is a low-cost, dual-voltage reset supervisor. It monitors two independent power supplies and provides an active-low reset signal when any of these two supplies drops below a preset voltage threshold. This IC can also detect voltage levels that are either too high or too low, and also provide reset signals as required. The reset active threshold of the MAX6418UK29+T is 2.85V and it can be adjusted to a higher or lower voltage level by changing external resistor ratio. The device has built-in watchdog timer, power-on reset, manual reset, and system reset and can detect negative voltage transients or a maximum voltage brownout condition. Moreover, the MAX6418UK29+T has low-power conscious and enables to the system to save power by utilizing the patented RESET OUT Pulse Stretch Feature which extends the output pulse duration proportional to the total active supply current.

The MAX6418UK29+T is designed for various application fields and integrated with various features, such as AS Unit Reset, reset signal TTL compatible, power/ground reset active, extended reset output pulse duration, MM5437 compatible reset output, manual reset with active-low, etc. This IC is most suitable for load control and protection in telecommunications, military and aerospace, industrial, automotive, process control, computer peripherals, and other applications where constant and even voltage output is very important. In addition, the integrated features are designed to protect non-volatile memory devices, detect power supply anomalies, and protect devices in hazardous environment conditions. Moreover, the MAX6418UK29+T is optimized to be a general-purpose reset supervisor, suitable for all applications where accurate voltage monitoring is needed, such as in digital signal processor systems, battery-operated applications, and power supply monitoring and control.

The MAX6418UK29+T has a 3-pin input, 3-pin output, and 2-pin power supply. The operations of the device begin when the power supply is applied. The device then detects the various levels of the power supply, and when it finds that the voltage dropped below a preset voltage level, it will activate the active-low reset output and start the reset. This output can remain active until the voltage reaches a safe level. The reset time and the active time of the reset output are adjustable via an external resistor. The reset active time can be adjusted to a maximum 3.2 seconds.

The MAX6418UK29+T is an advanced reset supervisor that uses low-power conscious and reset pulse stretch feature to save power and increase the safety of a system. It is suitable for various application fields, including telecommunications, military and aerospace, industrial, automotive, process control, and computer peripherals. The MAX6418UK29+T is designed to monitor two independent power supplies and provide an active-low reset signal when any of these two supplies dips below a preset voltage threshold.

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