MAX6796TPLD2+T

PMIC - Supervisors are devices that are used to monitor system behavior, detect out-of-control conditions, and alert the system to prevent potential damage. The MAX6796TPLD2+T application field and working principle is a perfect example of this type of integrated circuit.

Overview

The MAX6796TPLD2+T is a highly integrated, low-power system power supervisor IC. It combines voltage monitoring, low-voltage detection, system reset, and harsh fault detection in a tiny package, with minimal external components. This IC is ideal for power monitoring, system reliability, and system reset in battery-powered systems. It also features an internal voltage reference and an internal temperature sensor, allowing it to monitor itself and detect beyond tolerance levels.

Main Features

The MAX6796TPLD2+T comes with a host of features designed to make power monitoring easier and more reliable. It offers a wide input voltage range (1.6V-5.5V), low-voltage detection (LVW) down to 1.0V, and supports both open-drain and push-pull operation. Additionally, it has adjustable reset/halt thresholds, reset logic (active-low or active-high) for reset/halt-pulse widths of 10ms and up to 300ms, and fault detection with a hysteresis range of 150mV. There is also an internal power-on-reset (POR) circuit, an independent voltage detector (IVD) detect circuit, and an active logic-low output for power-good (PGOOD) signal.

The MAX6796TPLD2+T also provides robust programmable watchdog functions, flexible fault-reset options, system stability counter (SSC) parameters, a programmable reset timer, watch-window monitor (for clock-off detection), a watchdog timer that can be started on power-on reset, a temperature detector and fault sensor (TDEFS), as well as temperature and VCC reset protection.

How it works

The MAX6796TPLD2+T supervisor IC monitors the system voltage and provides voltage and fault monitoring, reset and fault detection. First, the IC takes in the power supply voltage and compares it to a predetermined voltage. If any potential overvoltages are detected, an active-low or active-high signal is sent to the host, triggering the reset sequence and alerting the system to take countermeasures. Additionally, the IC is able to monitor the system for undervoltage conditions as well, providing reliable power regulation even in low-battery conditions.

The MAX6796TPLD2+T supervisor can also detect harsh conditions and provide system resets. This is accomplished through the programmable fault reset options, which detect any extreme levels of current, voltage or temperature, and trigger the reset sequence as a precaution. The MAX6796TPLD2+T also provides system stability counter parameters, based on performance criteria rather than simply voltage levels, which gives the system the ability to take timely corrective action if the parameters exceed predetermined thresholds.

Conclusion

The MAX6796TPLD2+T system power supervisor IC is a highly integrated, low-power integrated circuit that provides system voltage and fault monitoring, reset and fault detection, and fault reset options. It enables reliable power monitoring in battery-powered systems, and offers an array of features such as a wide input voltage range, low-voltage detection, adjustable reset/halt thresholds, reset logic and fault detection. Additionally, the IC also offers robust programmable watchdog functions, system stability counter parameters, and a programmable reset timer. Overall, the MAX6796TPLD2+T provides exceptional system power monitoring, making it an ideal choice for any application requiring reliable power management.