MAX814KCPA+

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A PMIC (Power Management IC) is defined as an integrated circuit (IC) designed to regulate power within an electrical system. One type of PMIC is a Supervisory, which plays an important role in providing power supply sequencing, monitoring, and resetting of the system. MAX814KCPA+ is a Supervisory IC from the MAX814K family from Maxim Integrated. This advanced IC is designed to provide accurate voltage monitoring, flexible and programmable reset functions for systems, especially for battery-powered devices. This article discusses the application fields and working principle of the MAX814KCPA+.

Application Field

Due to its advanced features, MAX814KCPA+ is widely used in various application fields. One of the primary application fields is in battery-powered systems where a programmable reset logic is implemented. This IC features an ultra-low power-down current which is necessary for minimizing battery drain when the system is in a low-power state. The MAX814KCPA+ is reliable and stable when supplying power to systems which are prone to voltage fluctuations, such as those present in automotive systems.

The MAX814KCPA+ is also used in low-cost portable systems. As battery life is an important factor in a cost-sensitive system, the programmable reset logic provided by the MAX814KCPA+ helps in avoiding system lockups due to glitches or voltage spikes. The IC is also widely used in medical and security applications, where low power consumption and accurate voltage monitoring are necessary.

Working Principle

The MAX814KCPA+ is an advanced Supervisory IC designed to provide voltage monitoring and reset of systems. The IC features two voltage comparators which continuously monitor the input supply voltage. It also has a programmable reset timer which triggers a reset signal when the voltage drops below the set threshold. The timer is programmed via an external capacitor, allowing for flexible power-on and power-off reset timing.

In addition, the MAX814KCPA+ also features an integrated power-on reset signal, which is triggered when the input voltage rises from below the threshold to above it. This ensures that the system is properly initialized during power-on. The IC also has built-in over-temperature and over-current protection, which helps to prevent the system from damage due to improper operation.

The MAX814KCPA+ is a highly flexible and programmable Supervisory IC which offers a wide range of features and functions. Its programmable reset timer helps in providing accurate and reliable power sequencing, while its integrated voltage monitoring and reset features ensure that the system is correctly initialized and protected from voltage fluctuations and current overloads.

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