PMIC - Supervisors

PMICs, or power management integrated circuits, are used to enable efficient power solutions for electronic systems. Supervisors, a special type of PMIC, serve to monitor system power so that any power disruptions can be quickly detected and the system can be safely shut down. This article will explore the application field and working principle of the ADM13307-4ARZRL7 Supervisors.The ADM13307-4ARZRL7 is a supervisor with reset, Power-on Reset (POR) and manual reset inputs for electronic systems requiring a high tolerance to power disturbances. This particular supervisor is able to function with a wide range of input voltages from 2.85V to 6.5V, making it an excellent choice for systems ranging from battery-powered to level-shifting applications. The ADM13307-4ARZRL7 has several features that make it an attractive option for protecting systems in the event of power failure. First, the POR input is a very effective way of resetting the system when power is first applied to the circuit. The manual reset input also allows users to easily reset the system in the event of any system failures. Additionally, the ADM13307-4ARZRL7 has an adjustable reset delay that can be set to ensure that proper reset times are reached in case of power failures. In addition to its reset features, the ADM13307-4ARZRL7 also offers an adjustable watchdog timer. This timer is used to monitor the system health, and if the system is not functioning correctly, it will trigger a reset to help ensure that the system is back up and running safely. Lastly, this supervisor also has an adjustable power sequencing feature which allows for multiple power rails to be properly initialized and maintained throughout the power security process. In terms of its operation, the ADM13307-4ARZRL7 utilizes a highly efficient charge pump based design. This allows for the full flexibility of using its adjustable voltage generator to achieve the desired voltage levels within the system. Additionally, the charge pump design ensures that the supervisor operates at low power consumption, saving energy and money. The supervisor also has an integrated low power consumption stage that allows for low power consumption in different operational modes, such as run, sleep, and deep sleep. To conclude, the ADM13307-4ARZRL7 Supervisors offer a wide array of features and benefits that make it an attractive choice for protecting systems in the event of power failure. The low power consumption charge pump design, adjustable voltage generator, adjustable reset delay and adjustable power sequencing ensure that the supervisor can reliably monitor the system health and handle any power disturbances swiftly. With its robust features and wide range of input voltages, this supervisor is well-suited for any application requiring reliable power management and protection.