BU4247G-TR

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Power Management Integrated Circuit (PMIC) - Supervisors

Power Management Integrated Circuit (PMIC) is an important part of any electronic device such as laptops, smartphones, tablets and other mobile computing devices. Supervisory circuits, also known as reset supervisors, are part of PMIC that monitor power supply and system conditions, producing an output if any specified conditions or thresholds are exceeded. In this article, we will focus on BU4247G-TR, its characteristics and applications.

BU4247G-TR Overview

BU4247G-TR is a micro-power voltage monitor/reset IC (PMIC) manufactured by ROHM Semiconductor. It is designed for monitoring power supply voltage in mobile devices such as PDA, mobile phones, digital cameras and portable devices. This IC features a 4-pin SOT-23 package, 200mV Operating Voltage Range, 400ms Response Time and Low Iq of 0.3uA (typ.).

BU4247G-TR Application

BU4247G-TR can be used for monitoring power supply voltage and providing backup voltage in case of power failure. It offers an accurate way to ensure that the system has reliable power supply, which is important in low-power appliances or applications with limited energy reserves.

BU4247G-TR is also suitable for use in battery back-up systems such as mobile phones, PDA, digital cameras, etc. It can monitor the voltage of the mobile device and reset it in case of over-voltage or under-voltage. This helps preserve battery life as well as optimize system performance.

Other possible applications of BU4247G-TR includes emergency shut down, over-voltage protection, current limiting, and other power management solutions that necessitate the monitoring of the system’s power supply levels.

BU4247G-TR Working Principle

BU4247G-TR works on the principle of a double comparator and latch circuit. The circuit contains two comparators, each with its own reference voltage. If either of the two reference voltages is exceeded, thecorresponding comparator’s output is activated, setting the latch circuit and thus, producing the output.

The IC operates in Low-Current Mode, consuming only 0.3uA (typical). It is also qualified for 0V Start/Stop mode to provide >200ms reset delay. In this way, all the power supply conditions can be monitored and reset on command, ensuring an efficient supply for the system and protection from over-voltage and under-voltage conditions.

Advantages of BU4247G-TR

The main advantages of BU4247G-TR are its small size, high efficiency and low power consumption. It is a perfect solution for applications such as mobile phones, PDAs and system back-up power supplies. As mentioned earlier, BU4247G-TR offers an efficient and accurate way to protect systems from over-voltage and under-voltage conditions, extending battery life and protecting sensitive electronic components.

The other advantage of BU4247G-TR is its ability to sense the voltage level at any given time and provide an output if the voltage exceeds or falls below the specified threshold. This further helps in preserving the battery life and enhancing system performance.

Conclusion

In conclusion, BU4247G-TR is a great choice for power management applications that require accurate voltage monitoring and reset protection. It features a low-power consumption and small size, making it a perfect fit for low-power applications. With its advanced sensing capabilities and reset timing, BU4247G-TR ensures reliable system performance and extends the life of battery-powered devices.

The specific data is subject to PDF, and the above content is for reference