MXD1811XR44+T

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PMIC supervisors are essential components of a microprocessor-based system, as they provide reliability, safety, and additional functions. The MXD1811XR44+T is a PMIC supervisor from Maxim Integrated which offers advanced monitoring, diagnostics, and system control for next-generation systems. This article will discuss the application fields and working principles of the MXD1811XR44+T.

Application Field

The MXD1811XR44+T is designed for a variety of applications in modern systems, including industrial, automotive, medical, and military. It provides robust solutions for monitoring and protecting the power supplies vital to these systems, whether the system is based on DC or AC power. It features±10% accuracy over the entire power range, making it an ideal fit for demanding applications. Additionally, it supports multiple output voltages within the same chip, as well as a range of power-savings features.

Working Principle

At the heart of the MXD1811XR44+T lies a unique micropower controller that efficiently monitors, regulates and controls the power in the system. This controller features a variable-mode supply, with support for pulse-width modulation (PWM), pulse-frequency modulation (PFM), and discontinuous conduction mode (DCM) power conversion. This allows for efficient conversion of input power to output voltage. This controller’s voltage accuracy is better than ±10% over the entire power range, and it is dynamically adjustable according to current load conditions.

The device also includes a system status detector (SSD) that monitors the voltages, current, and temperature of various system components in real time. This capability can be used to detect system faults and provide timely diagnostic information. Additionally, it features power management features such as an auto-scaling feature and power-saving modes.

The MXD1811XR44+T has a wide operating range, up to 60V. It has a high tolerance to the air temperature, humidity and shock. It boasts a power GOOD output and microprocessor reset output with a maximum propagation delay of less than 2ms. These features make it ideal for applications such as high-power, high-voltage systems.

The MXD1811XR44+T also offers several high-end diagnostics functions such as power-on reset (POR) detection, reset duration tests, and brown-out detection (BOD) tests. These features help protect the system and prevent improper operation.

Conclusion

The MXD1811XR44+T is an advanced PMIC supervisor from Maxim Integrated that offers advanced monitoring, diagnostics and system control features. It features a unique micropower controller that provides accurate and efficient control over system power. It offers robust protection features and diagnostic functions to help ensure system reliability. The device’s wide operating range, high tolerance to environmental conditions, and integrated power-management features make it an ideal solution for modern systems.

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