MAX6381XR17D3-T

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Power Management Integrated Circuit (PMIC) supervisors are a special class of integrated circuit designed to provide a cost-effective way to keep a system running smoothly and reliably regardless of the operating environment. One of the most popular PMIC supervisiors is the MAX6381XR17D3-T. In this article, we discuss its application field and working principles.

What is MAX6381XR17D3-T

MAX6381XR17D3-T is a high-performance, low-voltage supervisor circuit used to monitor supply voltages and reset circuits in a wide range of applications. It provides a reset output that asserts when the supply voltage drops below the reset threshold. The reset output is held asserted until the supply voltage reaches the reset threshold and the reset timer expires. It also provides an active-high reset out indication which can be used to indicate the output\'s reset state.

Application Field

The MAX6381XR17D3-T can be used in a variety of applications where reliable circuitry is required, including processors, microcontrollers, FPGAs, ASICs, and more. It is ideal for systems requiring a high level of protection and accuracy. These include automotive, industrial, medical, and consumer products that require reliable and accurate protection of their critical components, especially in the presence of wide power supply variations.

The MAX6381XR17D3-T can also be used in battery-backed, mission-critical applications that would otherwise require separate battery-backed supervisor circuits, providing cost and space savings. Its maximum undervoltage lockout voltage is 3V, which enables the device to operate in low- voltage conditions without additional components.

Working Principle and Features

The MAX6381XR17D3-T works by monitoring the supply voltage. If the voltage drops below the reset threshold, the reset output is asserted to ensure that the system is reset. The reset is held asserted until the supply voltage reaches the reset threshold, at which point the reset timer expires and the reset output is released. The device also provides an active-high reset out indicator that can be used to indicate the output\'s reset state.

The device also features an integrated internal push-pull voltage regulator, which allows the device to generate both supply and reset voltages from a single voltage source. It has a wide supply voltage range, from 1V to 5.5V, and it features a reset threshold voltage range from 0.8V to 2.45V. It also has a temperature range from -40C to +85C, making it suitable for use in a wide range of operating environments.

The MAX6381XR17D3-T also includes numerous other features, such as a Brown-Out Detector (BODE) for detecting when the supply voltage is lower than specified, a Power On Reset controller for initializing the system when power is applied, a Clock Monitor for detecting when the clock is not within expected frequency range, and an Auxiliary Voltage Start function for powering low-voltage components.

Conclusion

The MAX6381XR17D3-T is a high-performance, low-voltage supervisor circuit that is used to monitor supply voltages and reset circuits in a wide range of applications. With its integrated internal push-pull voltage regulator, wide supply voltage range, and temperature range, it is suitable for use in a variety of systems. It also features a number of other features, such as a Brown-Out Detector, a Power On Reset controller, a Clock Monitor, and an Auxiliary Voltage Start function. As such, the MAX6381XR17D3-T is an ideal choice for any system requiring reliable and accurate protection of its critical components.

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