MP4601ES-LF

PMIC - LED Drivers

LED driver integrated circuits (ICs) are used to condition signals and provide power to luminaries such as bulbs, dots and bars. In general, LED drivers are used to provide constant current to the LED, since the current requirements of LEDs vary from one to another. A power management integrated circuit (PMIC) such as the MP4601ES-LF is a device designed to manage power states and regulate the current supplied to an LED module.

The MP4601ES-LF is an integrated DC/DC buck converter with a low quiescent current, low voltage operation and a high efficiency power conversion. It provides regulated current with high resolution using a switching technique, delivering a higher current than other traditional technologies. The MP4601ES-LF ensures a low EMI noise, very low ripple and low heat production, and is the ideal solution for LED driving applications.

Application Field

The MP4601ES-LF is a low voltage LED driver and it has a wide application field. It is ideal for LED driving applications, such as backlighting for LCD displays, LED strips and automotive headlights, as well as for other applications where a constant current is required. In addition, it has a wide range of input voltage applications, from 0.6V to 35V, making it suitable for a wide range of applications.

Working Principle

The MP4601ES-LF is a DC/DC buck converter, which means it works as a power conversion circuit that operates in switching mode. It converts input voltage to a lower, regulated output voltage while providing a constant current output. The device operates over a wide input voltage range of 0.6V to 35V and can provide a regulated current up to 1.75A with a power conversion efficiency of up to 95%.

The device has an internal current sensing circuitry with high resolution, which is used to control the output current delivered to the LED in a closed loop. The device is then able to detect the LED current and provide an accurate output current. The device also features an adjustable output voltage, allowing for a more precise current regulation.

The MP4601ES-LF also has integrated protection features such as overvoltage and thermal shutdown, as well as short circuit protection. Its other features include a low quiescent current, a wide temperature range operation and low EMI noise for better performance.

Conclusion

The MP4601ES-LF is a low voltage LED driver integrated with a DC/DC buck converter and an internal current sensing circuitry. It provides a regulated output current and has a wide application field in LED lighting applications, as well as other applications requiring a constant current. The device has an integrated protection system, a low quiescent current, low EMI noise and wide temperature range and is the ideal solution for LED driving applications.