MP4060GK-Z

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PMIC - LED Drivers

The MP4060GK-Z is an LED driver from Monolithic Power Systems, Inc. that utilizes high-efficiency PWM dimming, which allows for a wide range of lighting applications in all manner of commercial, industrial, and residential settings.

The MP4060GK-Z is a constant DC or constant current driver that works with various levels of LED lights and offers the ability to program its dimming behavior. It is suitable to control the brightness of backlighting modules, LED street lamps and LED interior lighting such as LED downlights. The driver features a current mode linear dimming control and its unique dimming algorithm compensates for variations in LED current to maintain consistent levels of brightness.

The power device is capable of operating in both discrete and PWM illumination modes and gives the user control over its multiple dimming parameters like the dimming output current and dimming duration. It is packaged in a Pb-free RoHS compliant 4x4mm 24L QFN package, with a high level of operational reliability due to its wide operating temperature range of -40°C to +85°C. In terms of its power output, it is rated for a power output of up to 5W for DC and up to 3W for PWM input modes.

Application Field of the MP4060GK-Z

The primary application fields of the MP4060GK-Z are backlighting modules, LED street lamps, and LED interior lighting, including LED downlights. In addition, the device can also be used for other applications where sophisticated dimming behavior or tight control of the LED parameters is required. The device can also be used for LED lighting applications in automobiles, LED signs and LED displays.

Working Principle of the MP4060GK-Z

The working principle of the MP4060GK-Z is based on the open-drain and linear dimming control methods. In linear dimming control, an external dimming signal is used as an input to adjust the LED brightness levels. This signal is used to adjust the output current of the LED driver, in turn adjusting the LED brightness levels. The algorithm used in the device also compensates for changes in the LED current to maintain consistent levels of brightness.

The device features a proprietary algorithm to adjust the output dimming current which results in a linear dimming curve, while the output dimming current is adjustable anywhere between 20mA to 400mA. The MP4060GK-Z is capable of operation in a DC as well as a PWM condition and hence provides versatile possibilities for a wide range of dimming implementations. It also provides a stand-by off mode which enables a lower standby power consumption.

The MP4060GK-Z is equipped with short-circuit protection and thermal shutdown with hysteresis to protect against potential damage and ensure safety. It also features an input over voltage protection and output under voltage protection. All these features ensure the device maintains its maximum efficiency over a wide range of operating conditions.

Conclusion

The MP4060GK-Z LED driver from Monolithic Power Systems, Inc. is an efficient and easy to use device that can be used to control the brightness of various types of LED lighting applications. It is suitable to control lighting modules, LED street lamps and LED downlights, and also other LED lighting applications like automobile and LED display signs. It is highly efficient, with a wide operating temperature range, and a reliable digital dimming algorithm that ensures consistent levels of brightness. The device is also equipped with various protections which make it even more beneficial in terms of efficiency and ease of use.

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