BD30HA5MEFJ-ME2

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BD30HA5MEFJ-ME2 application field and working principle

Linear Voltage Regulators are a type of power semiconductor devices that are used to maintain the output voltage within a required range. The voltage regulator keeps the output voltage from a power supply constant, even if the load current and input voltage fluctuate or if the line has supply variation.

The BD30HA5MEFJ-ME2 by ON Semiconductor is a 5A, 30V linear voltage regulator that is available in both 6-pin TO-220 and SOT packages. The device undergoes a surge voltage repetition protection between input and output and can deliver a fixed output current of up to 5A.

Applications

The BD30HA5MEFJ-ME2 is suitable for a variety of different applications including LED lighting and LED displays, power supplies, DC/DC converters, and various audio and electronic design projects. It can be used in electronic circuits as a current source or current limiter.

Working Principle

The BD30HA5MEFJ-ME2 operates on the principle of linear voltage regulation. In this type of voltage regulator, the output voltage is regulated by controlling the base-emitter voltage of a bipolar junction transistor (BJT). The regulator allows for a range of output voltages, depending on the base current.

The output voltage of the regulator is given by the simple equation Vout = Vin − Ib × Rc. The maximum current that can be supplied by the device is given by, Iin = ( Vin − Vout )/Rc, with Ib = Iin/hFE, where hFE is the current gain of the BJT. By controlling the base current, the transistor acts as a variable resistor, controlling the output voltage and limiting the current to the load.

Conclusion

The BD30HA5MEFJ-ME2 is a 5A, 30V linear voltage regulator that can be used in a variety of different applications. It operates on the principle of linear voltage regulation and is able to output a fixed output current up to 5A. It is available in both 6-pin TO-220 and SOT packages and offers surge voltage repetition protection between inputs and outputs.

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