BD4831FVE-TR

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The BD4831FVE-TR is a power supervisor integrated circuit (IC) manufactured by ROHM, a Japan based electronics manufacturer. The IC is a 4-pin device that is designed to regulate a power supply system and ensure proper operation of a critical circuit such as a microcontroller. It offers precise protection against under-voltage conditions and overvoltage conditions. In addition, it features an adjustable time delay for reset output and active-low reset output.

The BD4831FVE-TR is classified as a PMIC (Power Management Integrated Circuit) Supervisor, which means it is responsible for the supervision of power supply components in a system. This includes monitoring the input voltage of the power supply system, controlling the output voltage, and detecting and reporting any power-related faults. This makes it ideal for use in applications such as microcontrollers, monitoring of microprocessors, and other applications which require precise control of power supply.

The BD4831FVE-TR works by monitoring the input voltage level and ensuring that it is within the specified range. If the voltage is too high, the IC will send a signal to a power switch or regulator to reduce the voltage and prevent the system from being damaged. Similarly, if the voltage drops below the specified level, the IC will send a signal to increase the voltage. This protection feature ensures that the system is protected against any power-related faults.

In addition to its voltage monitoring capabilities, the BD4831FVE-TR also features an adjustable reset time delay and an active-low reset output. The adjustable time delay feature monitors the voltage level and generates a specific delay time before resetting the controller. This feature is useful for preventing false reset signals in applications where the controller is subject to sudden changes in its supply voltage. The active-low reset (also known as open-drain reset) outputs a low level signal during a fault condition. This output can be connected to a power relay, a power switch, or any circuit that needs to be shut down in the event of a fault.

Given its versatile features, the BD4831FVE-TR is suitable for a wide range of applications. Common applications include handheld consumer electronics, digital camera modules, smart home appliances, office automation equipment, and other applications which require precise power management. It is also widely used for measuring and controlling circuits, such as motor drives, temperature controllers, and DC-DC converters.

In summary, the BD4831FVE-TR is a 4-pin PMIC power supervisor IC manufactured by ROHM. It features precise protection against under-voltage conditions and overvoltage conditions, an adjustable time delay for reset output and an active-low reset output. This makes it suitable for a wide range of applications, such as microcontrollers, monitoring of microprocessors, motor drives, temperature controllers, and DC-DC converters.

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