MP3336GC-Z

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Introduction

MP3336GC-Z is a Buck-Boost LED Driver from Diodes Incorporated. It is an excellent integrated PMIC for switching mode power supplies, especially for LED lighting applications. This buck-boost driver takes the voltage from a wide range along the input port and provides a constant current to single or multi color LED string with a typical efficiency of up to 90%. Moreover, it has the advantages of current limit protection and thermal shutdown.

Overview

The MP3336GC-Z is an integrated PMIC that provides a number of features and benefits to the power supply designer. It is available in a 2mm x 2mm WCSP package that simplifies board layout and reduces the space needed for the power supply design. For LED applications, the device provides a wide input voltage range of +2V-36V that is ideal for AC line voltage applications. It also provides a high-efficiency boost or a buck-boost conversion logic that can generate either a fixed output current or a variable output current. This is further supported by a wide operating temperature range of -20℃ to +105℃. The MP3336GC-Z also includes simple protection features for both open LED and short LED conditions as well as over temperature protection. Furthermore, the device can be shut down with its enable pin and also has a variable frequency range of 1KHz to 4KHz with external frequency control that enables an optimized power-over-wide input voltage range.

Applications

The MP3336GC-Z is mainly used for LED lighting applications, such as street lights, landscape lighting, outdoor signage and LED backlighting. It is also suitable for LED lighting applications in indoor applications such as LED lamps, LED strips, LED panels, LED downlights and LED luminaires.

Working Principle

The MP3336GC-Z works in a constant-current buck-boost switching converter topology. It utilizes a control algorithm to convert a wide input voltage range into a constant current output. When the input voltage is higher than the output voltage, the device works as a buck converter. On the contrary, when the input voltage is lower than the output voltage, the device works as a boost converter.The MP3336GC-Z features an internal current detection loop for current limiting. The output current can be adjusted by changing the values of the external resistors. The device also provides an input voltage monitor that helps to monitor the input voltage. The output voltage can be adjusted by setting the values of the external resistors. Additionally, the MP3336GC-Z includes a thermal shutdown logic that prevents the device from overheating. If the device temperature is above the predetermined temperature, the thermal shutdown circuit will be engaged and the device will be disabled until the temperature is normalized.

Conclusion

In conclusion, the MP3336GC-Z is a versatile PMIC designed for LED lighting applications. Its wide input voltage range and compact package make it an ideal solution for efficient and compact lighting designs. Moreover, it provides a wide range of features, such as current limit protection, thermal shutdown and frequency control. The device is suitable for a wide range of applications including street lighting, landscape lighting and LED luminaires.

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