MP3308DL-LF-Z

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LED is a kind of visible pseudo-coherent light, which is wildly used in various applications. MP3308DL-LF-Z is an LED driver IC produced by Monolithic Power Systems, which has powerful functions to meet the needs of market. It is widely used in various illumination systems.

Application field

MP3308DL-LF-Z is a high-performance integrated LED driver. It integrates the functions of PWM dimming, over-temperature protection, over-current protection and over-voltage protection into one IC, which is suitable for automotive, industrial, home and commercial lighting applications.

It is designed for interior automotive lighting and street lighting applications, providing excellent light modulation characteristics. The wide range of switching frequencies is suitable for a variety of high-efficiency LED lighting applications. It comes with built-in programmable shift boosts on the power improved 10V transition loss, thus achieving better efficiency.

MP3308DL-LF-Z is designed for customers who require a high level of system accuracy and stability. This IC can be used to drive high-power components. With its integrated low-dropout current regulator, it can provide stable output current, while its flexible thermal overload protection protects against overload or over temperature conditions.

Working principle

MP3308DL-LF-Z is mainly composed of a low-dropout current regulator, a monolithic power stage and its features control etc. Its operation principle is very simple. First, when the input voltage is applied, the regulator supplies the power to the load. Then, the current to drive the LED is derived from the power. The LED current is then compared with the user-specified target LED current which is set by VREF terminal. The differences between the two currents are used to adjust the current in the output stage via an error amplifier. Finally, the LED current is set and the power is regulated according to the user output current.

Besides that, MP3308DL-LF-Z also contains features such as delay time, brightness boosting, PWM dimming and over temperature & over current protection. The PWM dimming function can reduce the flickering effect, while the delay time functions can reduce the inrush current and avoid the problem of high inrush current.

Conclusion

MP3308DL-LF-Z is an excellent LED driver IC which has the functions of PWM dimming, over-temperature protection, over-current protection and over-voltage protection. It is widely used in automotive, industrial, home and commercial lighting applications due to its power efficiency, stability, accuracy and safety. Finally, it has the features such as delay time, brightness boosting, PWM dimming and over temperature & over current protection.

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