BU4820FVE-TR

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Power Management Integrated Circuit (PMIC) is a type of integrated circuit mainly used to control and manage the power supply in modern electronic devices. A PMIC can be used to control the voltage and current supplied to other components in the system. A supervisor is a device used to manage the power supply of a system, either manually or automatically. The BU4820FVE-TR is a supervision and control IC from ROHM Semiconductor, which combines the functions of a supervisor and a PMIC in one device.

The BU4820FVE-TR is used for a variety of different applications, including system power management and battery charge control. It is commonly used in automotive, computer and mobile device applications, among others. It can be used to control the voltage and current supplied to other components, such as memory chips and processors, and to protect these components from damage due to overvoltage, overcurrent, and overheat.

The BU4820FVE-TR has a wide operating range, with a voltage range of 1V to 5.5V, and a current range of 0.2A to 3A. It also features a low quiescent current of typically less than 2uA. This makes it suitable for use in low-power applications, such as battery-powered systems.

The BU4820FVE-TR has several features designed to ensure system reliability, including a low voltage reset (LVR) circuit, a brown-out reset (BOR) circuit, and an overvoltage reset (OVR) circuit. The LVR circuit monitors the voltage supplied to the system and if it drops below a certain threshold, the circuit will reset the system to protect it from damage due to undervoltage. The BOR and OVR circuits both monitor the voltage supplied to the system and reset the system if the voltage rises above or drops below a certain threshold, respectively. This prevents damage due to overvoltage or undervoltage.

The BU4820FVE-TR also features a temperature monitor circuit which will shut off the system power if the device temperature rises above a certain threshold. This prevents the system from being damaged due to overheating. The BU4820FVE-TR also includes built-in overcurrent, overload and short-circuit protection circuits, which protect the system from damage due to excessive current draw.

In addition, the BU4820FVE-TR includes an embedded inductor in order to reduce the components necessary for a complete power supply design. This provides cost savings and minimizes complexity. It also includes an integrated FET switch for controlling the power supply, allowing for a greater level of design flexibility.

The BU4820FVE-TR is a versatile, feature-rich device which is suitable for use in a wide range of power management and battery charge control applications. Its features ensure system reliability and reduce component count, which makes it a great choice for any system designer looking for an efficient, cost-effective supervision and control IC.

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