BU4219F-TR

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Simple Reset/Power-On Reset
Number of Voltages Monitored:	1
Output:	Open Drain or Open Collector
Reset:	Active Low
Reset Timeout:	Adjustable/Selectable
Voltage - Threshold:	1.9V
Operating Temperature:	-40°C ~ 125°C (TA)
Mounting Type:	Surface Mount
Package / Case:	SC-82
Supplier Device Package:	4-SOP
Base Part Number:	BU42*

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Introduction to BU4219F-TR

The BU4219F-TR is an integrated circuit supervisor IC created by ROHM Semiconductor. It is part of the Supervisors series within the Power Management IC (PMIC) product family. The BU-4219F-TR offers improved precision and advanced features, ensuring that devices perform safely, securely and reliably.

Application of BU4219F-TR

The BU4219F-TR is typically used for digital systems, such as those found in personal computers, game consoles, and embedded systems. It is designed to protect these systems from over-voltage, over-current, and excessive clock speeds, maintaining safe and reliable operation. It\'s application specific features also allow for compatibility with various input voltages and other specific power supply requirements. The BU4219F-TR is suitable for any application that requires a smart, secure, reliable system supervisor. Its active monitoring and built-in safety features make it ideal for preventing system malfunctions, reducing downtime, and protecting the underlying system components.

Working Principle of BU4219F-TR

The BU4219F-TR operates on two integrated circuits, both of which are relevant to its performance. The first is the Voltage Detector, which is used to detect over-voltage or under-voltage conditions. This is accomplished by comparing the input voltage to the set voltage level. If the input voltage exceeds this level by a preset amount, it will trigger a reset pulse.The second circuit is the Reset Generator, which is responsible for generating a reset in response to the detect signal from the Voltage Detector. The reset signal is then used to power down the system or reset it to a stable state. The BU4219F-TR has a built-in delay timer, which is used to make sure that the system has enough time to reset or power down before any damage is done. This feature helps to further enhance the safety of the system, as it reduces the possibility of damage or malfunction due to a sudden overload.

Conclusion

The BU4219F-TR is a powerful and efficient supervisor IC from ROHM Semiconductor. It is designed for applications that require a smart, secure, and reliable system supervisor, such as digital systems (such as computers and game consoles) and embedded systems. Its features, including the Voltage Detector, Reset Generator, and built-in delay timer, make it ideal for preventing malfunctions, reducing downtime, and protecting the system components.

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