MAX6425UK34+T

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Power management integrated circuits (PMICs) form the core of a variety of essential systems, from cell phones to aerospace systems. Supervisors, an essential class of PMICS, are responsible for monitoring system line and logic voltages, and ensure that the systems are healthy and operating properly. The MAX6425UK34+T is a new-generation supervisor and a prime example of this technology. The following sections provide an overview of the MAX6425UK34+T application field, discuss its key features, and also explain its working principle.

Applications:
The MAX6425UK34+T supervisor is designed for use with small peripheral devices, such as mobile phones, portable gaming systems, and embedded CPUs. It provides an easy-to-install reset system that monitors the power supply voltages of the peripheral device. A low voltage reset (LVR) module and timer protection can be used with the supervisor, allowing it to detect over-voltage and under-voltage conditions and react promptly to them. The supervisor’s maximum temperature operating range of -40°C to +105°C also make it suited to many applications under harsh environmental conditions. In sum, wherever a reset solution is needed in a peripherals system, the MAX6425UK34+T is a great choice.

Key Features:
The MAX6425UK34+T supelvisor offers many attractive features. It operates from 2.9V to 5.5V, with an accuracy of ±5%. Its active-low, push-pull reset output has a minimum voltage of 0.9V, and can be driven up to 18V. The supervisor also has a low-supply current of 8μA. This low power requirement helps ensure that the system is power efficient, and doesn’t consume too much energy.
Another key feature of the MAX6425UK34+T is its wide reset trigger voltage range. It can be set to trigger at any voltage between 0.91V and 2.6V. This enables the supervisor to precisely detect voltage deviation and take the appropriate corrective action. The supervisor also includes an internal reset timer that can be set to trigger after a preset delay. This ensures that the supervisor will automatically reset the system in case of an abnormal event.

Working Principle:
The MAX6425UK34+T supervisor monitors its power supply voltage using an on-chip voltage reference. When the voltage drops below the reset threshold, the supervisor will start to generate an active-low reset signal. The signal will be sent to the system’s reset input, and the supervisor will remain in reset mode until the power supply voltage rises above the reset threshold. The supervisor also includes a reset timer that will trigger after a preset delay, ensuring that the system is correctly reset even in the event of a prolonged power failure. When the system has finished resetting, the supervisor will reset itself.

In summary, the MAX6425UK34+T supervisor is a powerful and flexible power-management tool for embedded systems. Its low-power consumption, wide reset threshold range, and robust operating temperature range make it ideally suited to many applications. Its features and design also make it reliable and easy to use, making it an ideal power-management solution.

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