MAX6381XR46D2+T

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Power Management Integrated Circuits (PMIC) and Supervisors provide the ability to monitor and control the power in a system. Supervisors are used to detect faults and shut down the system to prevent further damage. The MAX6381XR46D2+T is a supervisor IC from Maxim Integrated that provides voltage monitoring and power control functions. This article will discuss the application field and working principle of the MAX6381XR46D2+T.

Application Field

The MAX6381XR46D2+T is a high-accuracy supervisor IC that monitors microprocessor, ASIC, MCU, and FPGA voltages. It is used in a variety of systems, such as notebook PCs, servers, storage systems, telecom, industrial control systems, and medical device applications. The MAX6381XR46D2+T is designed to provide users with maximum flexibility and accuracy in monitoring and controlling their system’s power. It can accurately monitor multiple rail voltages, and can detect oversized and undersize voltage conditions with adjustable voltage thresholds.

An important feature of the MAX6381XR46D2+T is its ability to be configured for different voltage ranges. The voltage range of the MAX6381XR46D2+T can range from 0.9V to 4.6V. It is also capable of detecting overvoltages beyond the programmed voltage range. This IC can also detect both positive and negative voltage excursions, which make it suitable for low voltage applications.

The MAX6381XR46D2+T is designed to provide high-resolution monitoring and is capable of detecting voltage differences as small as 5mV. It is well suited for use in applications that require precise voltage monitoring and control.

Working Principle

The MAX6381XR46D2+T utilizes an advanced voltage monitoring architecture to achieve its high-accuracy performance. The IC includes a high-accuracy voltage reference and a comparator that monitors the voltage level of the system’s power rail and compares it to the voltage reference. When the voltage level of the power rail exceeds or falls below the programmed voltage level, the comparator will trigger a reset or fault output.

The MAX6381XR46D2+T also includes a power-on reset circuit that ensures that the reset is triggered only when the power supply is stable. This reset circuit will delay the reset time until the voltage level of the power rail has stabilized and is within the programmed threshold range. This ensures that the system is shut down only if the power rail is outside of the specified range.

The MAX6381XR46D2+T can also be programmed for various reset timings. It can be set to activate the reset immediately after an overvoltage or undervoltage condition is detected, or can be set to delay the reset for a specified amount of time. This feature is useful for applications that require a longer window of time to detect an overvoltage or undervoltage condition.

The MAX6381XR46D2+T also provides an open drain output that can be used to detect a voltage fault. This output will be activated when a fault condition is detected, which can then be used to alert the system of a fault condition. This feature makes the MAX6381XR46D2+T suitable for systems that require voltage monitoring and fault detection.

The MAX6381XR46D2+T is a high-accuracy supervisor IC that provides users with the ability to accurately monitor and control their system’s power consumption. Its adjustable voltage threshold, open drain fault output, and adjustable reset timing make it suitable for a variety of applications that require precise voltage monitoring and control.

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