BU4915F-TR

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PMIC (Power Management Integrated Circuit) supervisors are special circuits implemented in power supply systems. Supervisors regulate the power supplies of microcontrollers and other components. They are used to prevent malfunctions of the circuit and to ensure smooth operation. The BU4915F-TR is one type of PMIC supervisor.

The BU4915F-TR is a high-performance PMIC supervisor designed to provide protection, system reset, and brown-out detection. It has ±1.0% Accuracy over an extended temperature rating from -40°C to 125°C. The device also features active and manual reset signals, supply voltage monitor, and an internal voltage monitor.

This IC is mainly used in automotive, industrial, and consumer applications. It is primarily used in circuits monitoring application or system signals, or that require a strong reset and power-on reset signal. Its main application fields are automotive, medical, industrial and consumer electronics.

The BU4915F-TR supervisor has three main functions. The first is power-on reset. This is the process of resetting a system when power is turned on. The POR section of the IC monitors the rising power supply voltage and generates a reset pulse if the voltage rises above the rated value. This prevents the system from malfunctioning due to incorrect initialization.

The second function is brown-out detection. This is an important safety feature for electronic systems. The BOD section of the IC monitors the supply voltage and generates a reset pulse if the voltage falls below a rated threshold. This prevents components from malfunctioning due to a power failure.

The third function of the BU4915F-TR IC is manual reset. This provides a way to reset the system without having to turn the power off. The RESETB pin can be activated by an external signal, allowing the user to manually reset the system.

In addition to its primary functions, the BU4915F-TR has a number of other features that make it an ideal choice for many applications. It has a low current consumption, allowing it to be integrated into power-sensitive systems. The BREF and BRER pins enable the device to monitor the voltage at an external reference voltage, providing additional accuracy. It also has a standby mode for reduced power consumption when the system is inactive.

The BU4915F-TR is a highly reliable and cost-effective PMIC supervisor. Its combination of features makes it suitable for a wide range of applications, from automotive to consumer electronics. Its power-on reset, brown-out detection, and manual reset functions make it an ideal choice for system reset and voltage monitoring.

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