BU4923F-TR

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BU4923F-TR Application Field and Working Principle

The BU4923F-TR is a Supervisory IC from the Power Management and Interface IC family, designed to monitor multiple power supplies independent of master or slave microcontrollers, providing numerous advantages. This Power Management and Interface IC family provides accurate and stable power monitoring for a wide range of battery operated devices and eliminates the need for additional support components. The BU4923F-TR is ideal for a variety of products and applications, ranging from automotive and industrial control systems to consumer electronics and white goods.

Features

• Integrated Shutdown, Watchdog Timer and Manual Reset Circuit.
• Wide Monitoring Voltage Range (1.6V to 5.5V).
• Low quiescent current and short circuit protection.
• No external components required.
• High accuracy and temperature stability.

Applications

• Automotive and Industrial Control Systems.
• Battery Operated Systems.
• Consumer Electronics.
• White Goods.

Working Principle

The BU4923F-TR is designed to provide simple and accurate voltage monitoring for a wide variety of regulated and unregulated power supplies. The open drain outputs can be used to activate supervisor interrupts or reset signals to suit a wide range of applications. The BU4923F-TR features a wide input voltage range (1.6V to 5.5V) to ensure the monitoring of multiple power supplies. In addition, it offers a high degree of accuracy and a low quiescent current, thereby reducing total system power consumption.

The BU4923F-TR also includes an integrated shutdown circuit to reduce system operating power when necessary. The circuit offers a low quiescent current of 5μA and a short-circuit protection of 200mA, making it suitable for a range of applications. The built-in watchdog timer has a short program restart time of 25ms and a long program restart time of 2.5s, thus allowing the circuit to continuously monitor and protect the system from failure. In addition, it is also possible to manually reset the circuit with a push button or other devices.

Conclusion

The BU4923F-TR is a versatile Supervisory IC from the Power Management and Interface IC family. It has a wide range of features and applications, allowing it to be used in various types of regulated and unregulated systems, from automotive and industrial control systems to consumer electronics and white goods. The built-in features of the BU4923F-TR, such as the integrated shutdown circuit, watchdog timer, and manual reset circuit, provide a wide range of protection to ensure the accurate and reliable monitoring of multiple power supplies. With its excellent features and applications, the BU4923F-TR is an ideal choice for a wide range of applications.

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