BU4216FVE-TR

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The PMIC - Supervisors integrate robust components and intelligent diagnostics in a single, easy-to-use package. BU4216FVE-TR is one of the most important products of Supervisors and this article will introduce its application field and working principle.

The BU4216FVE-TR is an over voltage / over current protection device. It consists of three main components: an over voltage monitoring circuit, an over current monitoring circuit, and a power-on-reset circuit. The over voltage monitoring circuit monitors the voltage level of the power supply and generates a signal to the over current monitoring circuit when the voltage exceeds a reference level. The over current monitoring circuit then turns off power supply and provides a signal to the power-on-reset circuit. The power-on-reset circuit then generates a signal to alert the user when the voltage is back to its normal range .

The BU4216FVE-TR is typically used in applications such as PC, server/workstation, communication equipment, set-top boxes, and other DC/DC conversion applications, especially for platforms such as home appliances, medical devices, power tools, battery chargers and other similar applications. It is designed to be connected directly to the power supply or other power management devices to protect against over voltage and over current conditions which occur during power-up, power-down or power irregularity.

The BU4216FVE-TR integrates a reference voltage source, two high-side current sense circuits, two voltage sense comparators, two over-voltage comparators and two over-current trip circuits. It features an enable input pin for easy system configuration, the ability to withstand high peak voltages, and thermal protection. This product is available in an 8-pin TSSOP package.

In terms of its working principle, the BU4216FVE-TR works by continuously monitoring the voltage of the device it is attached to. If the voltage exceeds a certain level, such as 6V, the device will turn off the power supply and provide a reset signal to the system. The system will then be able to safely shut down and avoid any potential damage. In the same way, if the current of the device the BU4216FVE-TR is attached to exceeds a certain level, such as 2A, the device will shut off the power supply and provide a reset signal to the system again. This ensures that the system never runs for too long and is constantly monitored.

In conclusion, the BU4216FVE-TR is an essential PMIC product of Supervisors as it protects applications against over voltage and over current conditions. It features an enable input pin for system configuration, the ability to withstand high peak voltages and thermal protection. Understanding the application fields and working principle of BU4216FVE-TR is necessary for those engineers and technicians who use Supervisors.

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