MC7805BDT

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Introduction - MC7805BDT
MC7805BDT is an adjustable positive voltage regulator manufactured by STMicroelectronics which belongs to its ST7 family. It is an 3 pin TO-220 package device which includes a reference voltage, an error amplifier, and a power transistor for its output. It works in linear voltage regulation mode, in which it outputs constant voltage regardless of any loads or source variation.

Application Field
MC7805BDT is widely used in various applications and can be suitable for systems that works in a wide range of supply voltage. It is usually used in regulated power supply circuits, battery chargers, battery powered equipment, and in any other applications where linear voltage regulation is needed. It can also be used in precision current sources, transimpedance amplifiers and active loads.

Working Principle
The main job of the MC7805BDT voltage regulator is to convert an unregulated voltage source into a regulated DC voltage. It works in a linear regulation mode, in which the output voltage is determined by controlling the voltage drop of the power regulator transistor across its drain-source terminal. The voltage output is regulated by the error amplifier, which compares the output voltage with a reference voltage, and then produces an output voltage depending on the difference between them. When the output voltage is lower than the reference voltage, the error amplifier increases the output voltage; if the output voltage is higher than the reference voltage, the amplifier decreases the output voltage.

The MC7805BDT is also equipped with other features such as over-current protection, temperature sensing, adjustable voltage, over-voltage protection, thermal shutoff, and short-circuit protection. These features are important in ensuring reliable operation and protection of the device, and in providing a stable output voltage.

Conclusion
In conclusion, the MC7805BDT is an adjustable voltage regulator which belongs to STMicroelectronics ST7 family. It works in linear regulation mode, providing a constant output voltage regardless of any changes in the input or load conditions. It is used in many applications such as regulated power supply circuits, battery chargers, and battery powered equipment, and has many features such as over-current protection, temperature sensing, adjustable voltage, over-voltage protection, thermal shutoff and short-circuit protection, which helps in providing a stable output voltage.

The specific data is subject to PDF, and the above content is for reference