RT9818B-30GB

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The RT9818B-30GB is an integrated supervisory circuit, commonly classified as a PMIC - Supervisors, that offers a full range of customizable solutions for over-voltage, under-voltage, and over-temperature protection. It satisfies the needs of various system power supply designs, providing an easy to install, reliable, and cost-effective solution. The RT9818B-30GB provides an adjustable voltage window that prevents the microcontroller from resetting due to variable voltage levels, protecting both devices and the system itself.

The main application field of the RT9818B-30GB is for microcontrollers (MCUs) or any other low-voltage system. It is typically employed when unregulated DC power is needed, such as in battery-powered systems, and where unexpected voltage jumps could cause system failure.

The RT9818B-30GB has two main functions. The first is to monitor the voltages present at the system\'s power supply at predetermined thresholds and the second is to shut off the power supply when these thresholds are exceeded. In this way, any potential damage to the system\'s components can be prevented, improving the reliability and product life.

The RT9818B-30GB operates on a standard 3V to 15V DC power supply and has an adjustable window range of 3V to 6V. This range can be increased to a maximum of 10V to 15V with the addition of an external resistor. The adjustable voltage window is the key feature of this device, as it allows the circuit to detect a range of acceptable voltages. If the input voltage exceeds the maximum limit, the circuit will automatically shut off the power supply.

The RT9818B-30GB also has an over-temperature protection function that prevents the system from being damaged due to excessive heat. This feature allows the device to detect the temperature of the power supply and shut off the power supply before any damage can occur. The RT9818B-30GB is designed to operate in temperatures ranging from -40°C to +125°C.

In addition, the RT9818B-30GB can also be used to interface with other components, such as external logic, which makes it well-suited for use in low-voltage systems that need to interact with external circuits. This feature allows the device to perform its over-voltage, under-voltage, and over-temperature protection functions in conjunction with the external circuitry.

The RT9818B-30GB is designed for use in a wide range of system designs, including industrial instruments, power systems, battery powered devices, embedded system boards, and automotive applications. Its small size and low power consumption make it suitable for use in portable and embedded systems, as well as in applications where space is limited. Its wide temperature operating range ensures reliable operation in harsh environments.

The RT9818B-30GB has a unique feature known as the standby current feature, which significantly reduces the power consumed while the device is in standby mode. This feature is especially helpful in battery-powered applications, as it allows the device to operate for longer periods of time without needing frequent battery recharging.

The RT9818B-30GB is an integrated supervisory circuit that offers a complete and cost-effective solution for protecting low-voltage systems, while also offering a wide range of customizable features. Its adjustable voltage window and over-temperature protection functions ensure reliable operation, and its standby current feature helps to extend battery life. All these features make the RT9818B-30GB an ideal choice for cost-sensitive and low-voltage applications.

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