RT9818E-20GY

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PMIC (Power Management Integrated Circuit) supervisors are essential components in the electronics industry. They provide power, monitor operations, and protect circuitry from overload and misadministration. In this article we will discuss the application fields and working principle of RT9818E-20GY, a supervisor IC chip.

Application Fields of RT9818E-20GY

RT9818E-20GY is a PMIC supervisor IC (integrated circuit) mainly designed for system management applications. It provides power, monitors operations, and protects the circuitry from overload and misadministration. Some applications of RT9818E-20GY include laptop and portable computers, flat panel displays, LCD televisions, industrial controllers, gaming systems, and many others.

RT9818E-20GY offers a wide range of features that make it suitable for a variety of applications. It features under-voltage lockout, reset, embedded power-on-reset detect and programmable delay, thermal warning with adjustable threshold, multiple reset thresholds, programmable watchdog and measurement circuit. The IC also includes an adjustable reset output delay to ensure system stability, as well as power supply monitoring, power-on reset detection, and voltage reference connections.

Working Principle of RT9818E-20GY

RT9818E-20GY operates based on "window detection". In this system, the IC chip detects that the power supply voltage has dropped to the lower threshold voltage, and to the upper threshold voltage. This is the "window" of the system and when the power supply voltage is between the two thresholds, the system is deemed to be operating correctly.

When the power supply voltage drops below the lower threshold voltage, the IC will stop the system from operating and trigger a reset. This reset is indicated by a RESET pin, which will also reset other circuitry in the system. Similarly, when the voltage rises above the upper threshold voltage, the IC will deactivate and the system will be restarted.

The voltage thresholds can be adjusted by the user to suit their needs, making the supervisor very versatile. Additionally, the IC includes a number of other features such as thermal warning and programmable delay, which can be used to protect the system from accidental shut-downs or damages caused by extreme temperature changes.

Conclusion

RT9818E-20GY is a PMIC supervisor IC designed mainly for system management applications. It provides power, monitors operations, and protects the circuitry from overload and misadministration. It also provides a wide range of features that make it suitable for a variety of applications. The IC operates based on "window detection", where it detects that the power supply voltage has dropped to the lower and upper thresholds. The thresholds can be adjusted by the user to suit their needs, making the supervisor very versatile.

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