BD25HC5WEFJ-E2

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BD25HC5WEFJ-E2 application field and working principle

The BD25HC5WEFJ-E2 is a linear voltage regulator from ROHM\'s power management integrated circuit (PMIC) product family. The product is ideal to address a variety of voltage regulation needs, from less than 1.0V to 25V, for a wide range of applications, including those in consumer, industrial, and automotive markets.

Features

The BD25HC5WEFJ-E2 offers a number of features indicative of its quality and dependability. Its high-current capability of up to 3.0 A makes it a suitable product for applications requiring high-current voltage regulation such as motor and motor drives. The high temperatures of the device are safely endured up to 150°C, making the device well-suited for automotive applications. The wide input voltage range of 7.0 V to 25V allows the device to be used in both DC and AC applications.

Functionality

The BD25HC5WEFJ-E2 is designed to provide voltage regulation over a wide input voltage range. It features adjustable output voltage levels that can be controlled via an external control pin, allowing the user to adjust output regulation in order to best suit their application. The device also includes a power on reset (POR) circuit, which monitors the system power supply, preventing the load from turning on when the system is not powered up.

The device also has a thermal-shutdown circuit that monitors the junction temperature of the device. When the junction temperature exceeds a preset level, the thermal shutdown circuit will turn off to protect the device from becoming damaged due to over-heating. In addition, the device features short-circuit protection, which prevents the load from drawing excessive current due to a short-circuit condition.

Working Principle

The BD25HC5WEFJ-E2 works on the principle of voltage regulation. It uses an internal error amplifier to monitor the output voltage of the system. When the output voltage goes outside the acceptable range – either too high or too low – the error amplifier sends a signal to the power transistor, telling it to adjust the current flowing through the device. The output voltage is then adjusted to the desired voltage level.

The BD25HC5WEFJ-E2 also includes an external control pin that allows the user to manually adjust the output voltage. This can be used to adjust the output voltage level to best suit the application, or simply to fine-tune the output voltage level in order to achieve the highest efficiency possible.

Conclusion

In conclusion, the BD25HC5WEFJ-E2 is an excellent linear voltage regulator that is well-suited to a wide variety of applications. Its adjustable output voltage levels, high-current capability, and thermal shutdown protection make it an ideal choice for a wide range of applications, from those in consumer and industrial markets, to those found in the automotive industry.

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