S-80854CNUA-B9FT2U

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PMIC (Power Management Integrated Circuit) Supervisors are important analog circuits that are mainly used to reset, protect and supply the power for many types of circuits and systems. One of the widely used PMIC supervisors is the S-80854CNUA-B9FT2U. It is one of the most reliable and versatile supervisor chips in the market.

The S-80854CNUA-B9FT2U is a supervisor IC that consists of three functional blocks: a voltage detector, a reset generator and a supply voltage monitoring. With these functional blocks integrated together, the S-80854CNUA-B9FT2U can provide power-on reset (POR) and power-failure protection (PFP). It also offers resetting of the system when an overvoltage event occurs, thus providing robust protection.

The S-80854CNUA-B9FT2U is mainly used in computing systems, communications systems, embedded system designs, as well as various other applications where reliable operation and protection is essential. The S-80854CNUA-B9FT2U is also widely used in PC motherboards and mobile phones to provide reset and voltage monitoring. It is also used in automotive, medical, industrial and consumer products.

The S-80854CNUA-B9FT2U offers a reliable and cost-effective solution for protecting the system from overvoltage and undervoltage conditions. In addition, it offers a wide input voltage range, ranging from 3.2V to 11.5V, making it suitable for many applications. It also features a low supply current, ensuring low power consumption.

The S-80854CNUA-B9FT2U is designed with an advantage pin locking feature, which will allow a user to lock the pins and prevent accidental changes. It also has integrated ESD protection and an integrated dual-band watchdog timer which will guard against system lockups. This feature also allows the supervisor to detect unexpected system hang ups and then reset the system.

The working principle of the S-80854CNUA-B9FT2U is based on the voltage monitoring of the input supply. When the supply is stable, the S-80854CNUA-B9FT2U will output the reset signal to reset the system. However, when the input voltage deviates from the specified level, the supervisor will then detect and trigger the reset signal to reset the system.

When an overvoltage event occurs, the voltage monitoring circuit triggers the reset signal to reset the system. The voltage detector also measures all the supply voltages, then it sends a tolerance-ready signal to the reset generator and the reset generator sends out reset pulses. When the supply is back to the original value, the reset generator sends out a normal reset signal to the system.

The S-80854CNUA-B9FT2U is a highly reliable and cost-effective PMIC supervisor. It offers a wide input voltage range and low power consumption, making it suitable for various applications. It also offers integrated ESD protection and an integrated dual-band watchdog timer, which provide robust protection for PC motherboards and other electronics. It is also able to detect unexpected system lockups and reset the system.

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