MAX6887QETE+

PMIC - Supervisors: MAX6887QETE+ Application Field and Working Principle

PMIC (Power Management Integrated Circuit) supervisors are designed to ensure that electronic products operate reliably. They make sure that the power system functions correctly and safely, allowing users to enjoy the full performance of their devices without worrying about unexpected disruptions. In order to achieve this, PMIC supervisors must both correctly monitor the performance of the power system and anticipate any problems that may arise. The MAX6887QETE+ is one such supervisor, designed to regulate and protect a wide variety of circuits.

The MAX6887QETE+ is a high-power supervisor that monitors both the input and output of the power sys tem. It features a 2.2V to 5.5V input voltage range, a 0.8V to 6.3V output voltage range, up to 500mA load current, and a precision voltage accuracy of ±1.2%. The MAX6887QETE+ also contains a wide variety of features designed to make it easy to integrate into a circuit and ensure reliable operation. These include an external reset signal, RESET IN, an adjustable reset output assertion time, active-low and active-high reset control modes, hysteresis control, and an adjustable power-on reset delay.

The MAX6887QETE+ has a number of important applications, including embedded/automotive system voltage monitoring, battery back-up and supervisory functions, system reset and power-on reset, and overvoltage/undervoltage protection. It is also well-suited to any application that requires reliable operation without unexpected interruptions or power fluctuations.

The working principle of the MAX6887QETE+ is relatively simple and relies on the adherence to a basic set of inputs and outputs. The input voltage is monitored and compared to an internal reference voltage in order to determine if the voltage is either over- or under-voltage. If the voltage is outside of the acceptable range, an alert is sent and the supervisor takes corrective actions, as defined by the user. These corrective actions can range from just providing a reset signal, to disabling the internal circuitry and opening an output, to protect downstream components.

In order to provide maximum flexibility and utility, the MAX6887QETE+ can be programmed to respond to various voltage conditions that may occur throughout its operating range. For example, it can be set to provide automatic shutdown after a certain period of time of over-voltage or under-voltage. It can also be programmed so that an active-high reset assertion can occur, in the event that the user requires manual reset control.

The MAX6887QETE+ is a powerful, versatile supervisor, capable of monitoring and responding to conditions which may otherwise affect the reliability of electronic circuits. As its small size, low power consumption, and low cost make it particularly attractive for embedded applications, its application field is wide and varied. Most importantly, its ability to provide both user-selectable protection and reset functions make it an invaluable asset for a wide variety of applications, including automotive, industrial, and medical.