MAX6310UK49D4-T

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PMIC (Power Management Integrated Circuits) supervisors serve as a critical component in the modern power system. In this article, we will discuss the application field and working principle of MAX6310UK49D4-T.

The MAX6310UK49D4-T is a single-channel, low-voltage supervisor that monitors the power supply voltage of an electronic circuit and serves as an independent protection against undervoltage (UV) and/or overvoltage (OV) conditions. This component is designed to meet the needs of applications such as computers, telecom equipment, VoIP phones, power supplies, and other portable and desktop systems.

This supervisor consists of two parts: the threshold detector and a reset generator. The threshold detector monitors the input voltage and compares it with two trip voltage levels (UV and OV) programmed by two external resistors. The reset generator generates an asynchronous reset signal whenever the input voltage is below the UVP trip voltage or above the OVP trip voltage.

The reset pulse is an active-low signal, which remains asserted until the input voltage returns to the valid operating range. The reset pulse is designed to generate wide enough pulses to ensure proper resetting of microcontrollers.

The input voltage can be selected according to the application needs: the operating voltage range can go from as low as 1.8V up to 6.0V. This supervisor also has an internal temperature range of -40°C to +85°C and a robust and reliable shutdown performance up to 2.0V. The supervisor has an ultra-low quiescent current of 5µA, thus guaranteeing extremely low power consumption.

In order for the supervisor to operate correctly, it needs four external components: two resistors to set the trip voltage levels, a capacitor to stabilize the reset signal, and an external pull up resistor.

The MAX6310UK49D4-T supervisor is a versatile, low-cost solution for many applications. It provides reliable over-voltage and under-voltage protection and is ideal for systems that require a high degree of reliability.

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