BD4943FVE-TR

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The BD4943FVE-TR is a PMIC or Power Management Integrated Circuit that is usually used for monitoring and regulating power supply circuits. It is mainly used in portable applications, such as laptops and mobile handsets. It is also used in a wide range of other electronic applications, such as TV sets, IP cameras and automotive systems. The BD4943FVE-TR is specifically designed to provide system designers with the capabilities of controlling, monitoring and regulating voltages and currents while also minimizing power consumption.

The BD4943FVE-TR\'s multi-regulation capabilities enable it to be used in both linear and switch-mode power supplies in a range of consumer electronic devices. This PMIC can regulate voltage as low as 0.7V and as high as 18V and can support up to 500mA or 2A depending on the system configuration. This makes it highly suitable for providing a stable power source for a variety of devices in consumer product applications.

The BD4943FVE-TR also offers various protection features such as undervoltage lockout, overtemperature lockout and open-drain short-circuit protection. These features make it ideal for use in battery-based devices as it provides a secure and efficient power supply. In addition, the BD4943FVE-TR also features a low start-up voltage and low quiescent current, which makes it highly suitable for use in battery-powered applications.

The BD4943FVE-TR always works as a supervisor or power-on reset, keeps measuring the power supply voltage and output a signal based on that. To be able to do that, it includes a combination of dedicated blocks; a POR (power on reset) and an OVP (over voltage protector). The basic function of the POR is to prevent the system from operating outside of certain voltage parameters.

When the power is first applied, the POR will monitor the voltage until it gets above the minimum voltage set point, then it will latch-in and exit reset. When the power is below this minimum voltage limit, the POR will continually reset and hold the system until the voltage ramps-up to the minimum voltage.

The second dedicated block, OVP, acts as a failsafe that prevents the system from being over-volted beyond the specified limit. This is important for devices that require different levels of power for specific functions, such as portable devices that are powered by both an internal battery and an external power source. When the input voltage rises above the set limit, the OVP will shut off the internal power supply, preventing any system damage.

In summary, the BD4943FVE-TR is a PMIC specifically designed to regulate the power supply in a variety of applications. Whether the device is powered by a battery or an external power source, the BD4943FVE-TR can provide a secure and efficient power supply while also minimizing power consumption. It is perfect for a range of consumer electronic devices due to its multiple protection features and low start-up voltage as well as its ability to regulate voltage as low as 0.7V and as high as 18V.

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