MP4054AGJ-P

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LEDs have become increasingly popular, they have become an indispensable component in modern electronic products, and some power supply products are used to drive their work. The MP4054AGJ-P is a perfect example of this, as it is specifically designed to provide LED drivers. So what is the application field of MP4054AGJ-P and what is the working principle? Let\'s find out.

Application Field of MP4054AGJ-P

The MP4054AGJ-P is an LED driver which is based on multi-string constant current linear LED driver. It is able to provide adjustable current from 150mA to 600mA, and protection features like over temperature, open LED, voltage fold back protection and so on. It is suitable for driving single string of LEDs with adjustable current, thus making it perfectly suitable for lighting applications.

With its built-in power MOSFET, it is capable of driving up to 27V total string voltage, and maximum 600mA current. It is also able to reduce power dissipation for better efficiency, which makes it a perfect choice for applications like TVs, desktop monitors, PC monitors and so on.

Another strong point of the MP4054AGJ-P is the fact that it is pin-to-pin compatible with the previous version of the device, the MP4054AGP-P. This means that if you are using a system which is designed with the previous version of the device, upgrading to the MP4054AGJ-P should be hassle free.

Working Principle of MP4054AGJ-P

The MP4054AGJ-P consists of two major components; a voltage regulator and an operational amplifier. The voltage regulator ensures constant output voltage, while the operational amplifier monitors the output of the voltage regulator and adjusts the current based on the output. The current is regulated by varying the amount of current sourced from the output pin of the voltage regulator.

When a voltage is applied at the input of the device, the voltage regulator will in turn output a regulated voltage. The internal operational amplifier will then compare the output from the voltage regulator with the external set point and adjust the current sourced from the output pin of the voltage regulator accordingly. The amount of current sourced is in turn determined by the external resistors connected to the input of the device.

The device is also temperature compensated and is able to maintain a constant amount of current with changing temperature. The device is capable of handling maximum of 90V input voltage, 600mA output current and up to 27V total string voltage. The MP4054AGJ-P also has protection features such as over temperature and open LED protection, as well as current fold back protection.

Conclusion

In conclusion, the MP4054AGJ-P is a perfect choice for lighting applications. It is able to provide adjustable current from 150mA to 600mA, and is able to handle maximum of 90V input voltage, 600mA output current and up to 27V total string voltage. It also has protection features such as over temperature and open LED protection, as well as current fold back protection. The device is pin-to-pin compatible with the previous version of the device, the MP4054AGP-P, and is able to maintain a constant amount of current with changing temperature.

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