MAX6747KA31/V+T

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MAX6747KA31/V+T Application Field and Working Principle

The MAX6747KA31/V+T is an Integrated Supervisory Circuit with 1.8V and 3.3V Voltage Output and Reset & Timer Capability from Maxim Integrated. The device combines a reset timer, a voltage monitor, and a manual reset input in a single 8-pin package. This provides a particularly suitable supervisor for embedded, distributed power applications.

The MAX6747KA31/V+T supervisors can be classified as a type of PMIC (Power Management IC) specially designed for supervising multiple power rail systems. This type of device allows system designers to incorporate a reset timer, voltage monitor and manual reset input that helps to improve system reliability. The MAX6747KA31/V+T supervisor is also capable of providing either of two adjustable manual reset inputs or an adjustable reset timeout period. These features provide increased flexibility in system design.

The MAX6747KA31/V+T has two voltage outputs: one 1.8V output and one 3.3V output. These two outputs can be used to monitor two different power rails. The high accuracy and low dropout voltage of the device ensures reliable and repeatable voltage levels. The reset outputs provide an active-low signal when triggered by any of the three supervisor inputs (manual reset, reset timeout, or voltage monitor). These outputs are intended as a reset signal for other ICs in the system.

The MAX6747KA31/V+T also incorporates a reset timer. The reset timer triggers a reset signal when its accuracy-controlled time-delay has expired. It is adjustable from 1ms to 48s via an external resistor. Along with the reset timer, the MAX6747KA31/V+T provides two manual reset inputs. These inputs allow the system designer to trigger a reset signal with a momentary contact closure (active-low reset). Finally, the device includes an adjustable voltage monitor input which can be set to trigger a reset signal when the voltage falls below a user-defined threshold.

The MAX6747KA31/V+T is particularly suitable for embedded and distributed power rail applications. The device\'s wide input voltage range (2.3V to 5.5V) allows it to be used as a supervisor for boost and buck DC/DC converters. It is designed to meet the hot-plugging requirements of system installation. Its low operating current (390uA typical) and small 8-pin package make it easy to incorporate into a wide range of systems.

The MAX6747KA31/V+T is ideal for applications requiring a reliable and adjustable reset signal. With its multiple inputs, adjustable timer and voltage monitor, the device provides an efficient and effective way to improve system reliability in multiple power rail systems. Combined with its low operating current and wide input voltage range, the MAX6747KA31/V+T makes it the perfect choice for embedded and distributed power applications.

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