BU4339FVE-TR

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BU4339FVE-TR is a supervisor integrated circuit (IC) for power management (PMIC) applications produced by ROHM Semiconductor, Inc. It is a specific type of PMIC known as a “supervisor”. As such it is designed to provide monitoring and resetting functions at power-up and during system operations.

The main purpose of the BU4339FVE-TR PMIC is to protect systems against the risks associated with system reset and latch-up, by detecting critical levels of voltage and current and initiating reset functions. The BU4339FVE-TR integrates two operational amplifiers and an associated logic gate to allow it to monitor up to three different power supply rails. It also incorporates a temperature sensor, a watchdog timer and a power-on reset circuit.

The features provided by the BU4339FVE-TR make it suitable for use in Number of applications. Its ability to monitor three different power rails makes it very popular in Fast Ethernet routers. Its temperature sensor and watchdog timer are useful for medical or industrial applications. Its reset function is important for embedded systems and microcontroller based applications. It is also ideal for automotive electronics systems and servers.

The BU4339FVE-TR is designed to provide a highly accurate and reliable level of protection to any system. Its voltage and current monitoring capabilities allow it to constantly monitor the status of any connected power rails. If the voltage or current goes below a certain predetermined level, it will automatically initiate a reset function. This reset function prevents system instability or system damage that may be caused by a power supply problem.

The BU4339FVE-TR’s temperature monitoring capability prevents system damage due to overheating. The watchdog timer will reset the system after a certain predefined time period, ensuring that the system is regularly re-initialized and any software or firmware errors can be prevented.

The BU4339FVE-TR provides an extra level of protection to any system by constantly monitoring the system’s operating environment. In addition to its reset, temperature and watchdog timer functions, the BU4339FVE-TR also includes a selectable power-on reset circuit. This allows the user to set up their system in such a way that the system will be powered up by either an internal or external reset source.

In conclusion, the BU4339FVE-TR is an ideal supervisor integrated circuit for many different types of power management applications. Its robust design provides exceptional reliability and accuracy when monitoring and resetting system voltages and currents, temperatures, and watchdogs. Its dual-source power on reset also makes it a very versatile design for automotive and industrial applications.

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