BD4953FVE-TR

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Power Management Integrated Circuits (PMIC) or Supervisors are vital components in modern day electronics, as they are used to safeguard against unexpected power deficiencies or fluctuations. The BD4953FVE-TR is an example of a PMIC supervisor used to provide accurate voltage monitoring and reset functionality to guarantee the safe operation of a system. In this article, the application field and working principle of the BD4953FVE-TR will be explored.

Applications of the BD4953FVE-TR

The BD4953FVE-TR is a CMOS-based PMIC supervisor for reliable voltage detection and reset functions. It is used in applications where high accuracy voltage monitoring is needed in order to guarantee safe system operation. Examples include the power supplies of electronic systems, automobile electronic circuitry, and embedded system ultra-low power and low voltage applications.

The BD4953FVE-TR is also used in applications that require both low current consumption and high-level accuracy. This makes it ideal for battery-powered, or energy-harvesting applications that are aiming to maximize efficiency and longevity. As a combination of a low quiescent current and high accuracy, the BD4953EVE-TR is also ideal for low voltage, high accuracy reset functions.

Working Principle of the BD4953EVE-TR

The BD4953FVE-TR is a CMOS-based PMIC supervisor consisting of a power source circuit and reset circuit. Its power source circuit consists of precise voltage twin comparators to detect precise voltage levels, with over/under voltage detection outputs. Two open-drain, active-low trip outputs are generated when either an over or under voltage is detected.

The reset circuit of the BD4953FVE-TR is triggered when one of the two open-drain outputs of the power source circuit detects an over/under voltage. When triggered, the reset circuit will generate a reset pulse to communicate this detection to other components of the system. This reset pulse will be held for a period of time defined by the RESET timeout setting.

The BD4953FVE-TR also features a low quiescent current that is below 1µA. This means that power consumption is minimized, allowing it to be used in energy harvesting applications. Furthermore, the BD4953FVE-TR has a wide operating temperature range of -40°C to +85°C, making it suitable for extreme conditions.

Conclusion

The BD4953FVE-TR is a CMOS-based PMIC supervisor designed to provide precise voltage detection and reset functions. It has a wide range of applications and is particularly suitable for low voltage, high accuracy monitoring and reset functions. Its wide operating temperature range and low quiescent current supports its usage in energy harvesting applications. By understanding the application field and working principle of the BD4953FVE-TR, users can optimally use this PMIC to guarantee safe system operation.

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