ADM8696ARWZ-REEL Integrated Circuits (ICs)

PMIC - Supervisors: ADM8696ARWZ-REEL Application Field and Working Principle

PMIC supervisors are integrated circuits that are used to monitor and control other circuits in power supplies. They monitor the operation of the power supply to ensure correct operation and restrict incorrect operation states that can lead to damage or other undesirable effects. The ADM8696ARWZ-REEL is one of the world\'s most popular PMIC supervisors, and has been produced by Analog Devices since its introduction in 2020.

Application Field

The ADM8696ARWZ-REEL is used in a wide range of power supply applications, such as controlling the power-on and power-off sequence of multiple power supplies. It can monitor power supply voltages, enable and disable power supplies, detect over-voltage and under-voltage conditions, and automatically reset the power supply in the event of a fault. The ADM8696ARWZ-REEL also has built-in current and over-temperature monitoring, as well as a watchdog timer for system reset sequences.

It can also be used in battery charging applications, such as cellular phones and digital cameras. The ADM8696ARWZ-REEL monitors the charge current, charge state, and system voltage to safely determine when the battery is full and prevent over-charging. It also monitors the temperature of the battery to protect it from temperature extremes.

Working Principle

The ADM8696ARWZ-REEL uses a variety of control elements to monitor and protect the power supply. Firstly, it is comprised of two basic elements - a voltage supervisor and a reset generator. The voltage supervisor monitors the supply voltage and can detect both over-voltage and under-voltage conditions. When an over-voltage or under-voltage condition is detected, the reset generator is activated, which will reset the power supply as programmed.

The ADM8696ARWZ-REEL also includes a watchdog timer, which is used to reset the power supply after a certain time has passed. This timer prevents a hung system from staying in an incorrect state for too long, allowing for a reset if needed. The current monitor is also included to monitor system current, and will shut down the power supply in the event of an over-current condition.

The ADM8696ARWZ-REEL also includes a temperature monitor which monitors the system temperature and will shut down the power supply if it reaches a dangerous temperature. Finally, the ADM8696ARWZ-REEL integrates a low-power comparator, which can detect and compare two levels of input voltage, and can be used to turn off and on power supplies remotely.

Conclusion

The ADM8696ARWZ-REEL is a versatile and reliable PMIC supervisor. It is capable of monitoring a variety of signals and operating conditions, allowing it to protect and control power supplies and battery chargers. With its built-in logic elements, the ADM8696ARWZ-REEL is suitable for a wide range of applications, making it a popular choice for designers and engineers.