BU4814FVE-TR

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Power management integrated circuits (PMICs) are integrated circuits that provide efficient and effective solutions for power management, performing tasks such as converting power from one voltage converter to another, monitoring, and protecting against excessive current and voltage conditions. Supervisors are a type of PMIC that monitor and measure voltages, providing power control and protection for system applications. The BU4814FVE-TR stands out from other supervisors due to its combination of low power consumption, a wide operating range, and integrated functions such as reset, detection of low voltage, overcurrent protection, and sign detection. This article will discuss the application fields and working principle of a BU4814FVE-TR supervisor.

The BU4814FVE-TR is designed for use in a variety of applications, including automotive, industrial, and consumer electronics. It is commonly used for monitoring the system power, such as the power supply voltage, power-on reset and system reset voltage. Additionally, the BU4814FVE-TR can provide protection against overcurrent, short circuit, and overvoltage. The BU4814FVE-TR is also capable of generating and supplying various types of reset signals, including system reset signals, peripheral reset signals, and low voltage detect signals. It is suitable for use in systems that utilize a wide range of operating sourced, ranging from DC to AC.

The BU4814FVE-TR supervisor is a very low power consumption device, consuming only 0.5µA standby current and 6.5µA active current. It operates over a wide temperature range, from -40°C to +85°C, making it suitable for a variety of environments. The BU4814FVE-TR is designed for use in systems with an output voltage range of 1.1V to 17V, and it offers a wide operating voltage range of 2.0V to 6.0V. It provides a detection voltage precision of ±3%, and its over-current detection threshold is adjustable from 20mA to 100mA.

The BU4814FVE-TR supervisor utilizes a variety of components to perform its operations, such as a voltage regulator, reference voltage source, comparators, and protection circuits. The voltage regulator is responsible for maintaining a constant power supply voltage. The reference voltage source is used to set the voltage level the supervisor monitors. The comparators compare the monitored voltage level to the reference voltage, and the protection circuits prevent any overcurrent or overvoltage conditions. Additionally, the BU4814FVE-TR supervisor includes an internal reset circuit that generates reset signals when certain conditions are detected.

The BU4814FVE-TR supervisor is a versatile device that can be used in a variety of applications. It offers a wide operating voltage range, high precision voltage monitoring, and low power consumption, making it an ideal choice for monitoring and protecting system voltage for automotive, industrial, and consumer electronics applications. By combining elements such as the voltage regulator, reference voltage source, comparators, and protection circuits, the BU4814FVE-TR is able to provide comprehensive protection against overvoltage and overcurrent, as well as generating reset signals when required.

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