BU4929G-TR

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Power Management ICs (PMICs) are a critical component of nearly all electrical circuits and systems, providing power management solutions for circuit board design. One common type of PMIC is a supervisor, which is an IC dedicated to monitoring a certain set of conditions in an electrical system and triggering relevant responses if any of these conditions are detected. The BU4929G-TR from ROHM Semiconductor is a supervisor IC that provides solutions for overvoltage protection, reset latency control, overcurrent protection, and reset signal output control. This article will explain the application field and working principle of the BU4929G-TR.

Applications

The BU4929G-TR is well-suited for a wide variety of applications. It can be used in digital home electronics, industrial equipment, and automotive applications. In addition, it is designed for use in circuits that require extended reliability due to its low-current operation and low power consumption. Due to its integration of multiple functions, the BU4929G-TR is also applicable in the automotive market, as it can greatly simplify circuit design.

Functions

The BU4929G-TR offers a range of functions all provided in an 8-pin package, including overvoltage protection, reset latency control, overcurrent protection, and reset signal output control. Overvoltage protection prevents voltage from exceeding a predetermined maximum level and reset latency control ensures that the output reset signal is received in a timely manner in the event of an overvoltage event. The BU4929G-TR also features overcurrent protection and reset signal output control, which ensures the circuit is not damaged by excessive current and provides a reset signal for the appropriate reaction.

Working Principle

The BU4929G-TR operates on a simple working principle. It is designed to monitor voltage and current levels in a circuit and trigger a reset signal if either of these values exceeds the predetermined values. To enable this, the BU4929G-TR is equipped with overvoltage protection and overcurrent protection, both of which are triggered when their respective limits are exceeded. When this occurs, the reset signal is triggered and the circuit is reset accordingly. Additionally, the reset latency control ensures that the reset signal is received within the necessary timeframe, allowing for quick and reliable circuit protection in the event of an overvoltage or overcurrent event.

Conclusion

The BU4929G-TR is an excellent supervisor IC that provides reliable overvoltage protection, reset latency control, overcurrent protection, and reset signal output control in a single 8-pin package. Its low-power consumption and integrated functions make it ideal for use in a wide variety of applications including digital home electronics, industrial equipment, and automotive applications. Furthermore, its working principle is simple and straightforward, making it a great solution for circuit board design.

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