S-80934CNNB-G84T2U

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Power management integrated circuits (PMICs) are essential components that are used to deliver power to microelectronic systems and devices. PMICs are designed to efficiently manage the distribution of power within the system by allowing voltage and current regulation, monitoring and protection. Supervisors are an important type of PMIC which are designed specifically to protect systems and microelectronic devices and circuits based on predetermined user parameters. The S-80934CNNB-G84T2U is an example of a supervisor which is used in a variety of applications and systems. The following provides an overview of the various applications, as well as the device’s principles of operation.

Application

The S-80934CNNB-G84T2U supervisor is particularly well suited for applications such as battery-powered and energy-efficient portable system designs. Due to its wide input voltage range of 2.4V to 28V, the supervisor is well-suited for use in a number of systems and devices including laptop computers, personal digital assistants (PDAs), GPS receivers and mobile phones. Moreover, the supervisor is used in an array of industrial and automotive systems, including white goods, automotive electronic door locks, industrial robots and building automation systems.

Working Principle

The S-80934CNNB-G84T2U supervisor is designed to monitor and protect microelectronic systems and devices, as well as its internal power circuits, according to user-defined parameters. It integrates a reset timer, watch-dog timer output, as well as temperature and supply voltage monitoring to ensure the operating reliability of the microelectronic system. The supervisor also provides built-in phase-locked loop (PLL) functions and an over-temperature monitoring circuit.

The PLL allows the supervisor to offer precise, fixed frequency reset interrupt (FIRES) and watchdog timer outputs, with frequency options of 1.0kHz, 1.5kHz, or 2.0kHz. For example, the 1.0kHz PLL FIRE output has a frequency accuracy of +2.5% at a range of 1.00kHz to 1.03kHz. The watchdog timer output is provided to reset the monitoring device or controller if it does not respond to regular cycle reset pulses. If triggered, the RESP output is set and the LOCK output is cleared. In this case, the RESET output of the supervisor will not be triggered unless the supervisor\'s EN input is ready to reset the system again. Furthermore, the supervisor is provided with an over-temperature warning circuit which can be used to detect an over-temperature condition in the system. This causes an ALERT output to be triggered, allowing the user to take further action such as shutting down the device.

Overall, the S-80934CNNB-G84T2U supervisor is a versatile and reliable device that is used in a variety of applications. With its wide input voltage range, accuracy monitoring, and PLL functions, it is well-suited for use in battery-powered or energy-efficient systems. This supervisor can be used to ensure reliable operation of the system, as well as to monitor and protect against over-temperature conditions, unexpected operations, or other dangerous scenarios.

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