BD4934FVE-TR

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The BD4934FVE-TR is an integrated circuit or IC belonging to the series of supervisors or Power Management Integrated Circuits (PMICs). This is an ideal solution for controlling multiple regulators from a single, compact IC package. It is equipped with a variety of features that make it ideal for applications, such as mobile and battery-powered products.

The BD4934FVE-TR is a highly integrated supervisor for multi-regulator control. It is packaged in a 48-pin WLCSP and features an adjustable supervisory voltage range from 1.2V to 3.3V. The integrated circuit is capable of controlling up to four power supply linear regulators simultaneously by monitoring the voltage levels of each regulator and switching them on or off as necessary. The integrated circuit also features a variety of additional functions, such as safety timers, overvoltage protection, reverse boost detection, active discharge and short circuit protection.

The primary application field of the BD4934FVE-TR is the power supply control and monitoring of portable devices and equipment. It is often used in mobile devices, such as smartphones, tablet computers, and wearable devices. Additionally, it can be used to control and monitor the power supply of embedded systems and industrial equipment.

The working principle of the BD4934FVE-TR is based on the use of a set of voltage comparators, switch control circuitry, and a current source. These components work together to monitor and control the voltage levels of up to four linear regulators. The integrated circuit is also equipped with various safety features and monitoring functions, such as overcurrent protection, reverse boost detection, and active discharge.

At the heart of the BD4934FVE-TR is the voltage comparator circuit, which is used to monitor the output voltage of each of the regulators. When the voltage level of any of the regulators falls outside of the specified safety range, the IC will activate the switch control circuitry, effectively turning off the regulator. The current source is also used to provide supervision of the regulator output voltage.

The BD4934FVE-TR is a highly integrated solution that provides a variety of features and control functions in a single, compact package. It is ideal for portable and battery-powered devices, as well as embedded systems and industrial equipment. The integrated circuit is equipped with safety functions, such as overvoltage protection, reverse boost detection, and short-circuit protection, and is capable of controlling up to four linear regulators. This makes it a versatile and reliable solution for a wide range of applications.

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