MP3356DG-LF-Z

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The MP3356DG-LF-Z is a high voltage constant current LED driver module by Monolithic Power Systems, Inc. that is a part of its family of PMIC – LED Drivers. This specific product is designed for applications where a low solution cost and a maximum of 12 LEDs need to be driven by a single module. The MP3356DG-LF-Z contains a current setting resistor and a constant current sink driver capable of driving up to 12 LEDs. Its low voltage LED drive architecture reduces components and thus increases simplicity and cost-effectiveness.

The MP3356DG-LF-Z can be used in indoor, outdoor and emergency lighting systems, automotive displays, and LCD backlighting. The module has an operating temperature of -40°C to 85°C and an operating voltage between 8.0V and 16.0V. In addition, it can support up to a total of 300 mA of LED current with a maximum current of 25mA per LED. It also features over-voltage protection, thermal shutdown, and current limit protection.

The working principle of the MP3356DG-LF-Z is quite simple. The module consists of a high-side current sink and a current setting resistor. The current setting resistor is connected to the input voltage VIN and is used to set the output current of the module. This fixed current is then applied to the LEDs. The LEDs are connected in series and the current is shared among them. The module then regulates its own current to keep a constant output current through the LEDs. The total current for the module is calculated as the input voltage VIN multiplied by the set resistor value. Lastly, the module also features an over-current protection circuit which trips when the output current exceeds a certain level, protecting the circuit from damage.

In conclusion, the MP3356DG-LF-Z is a high voltage constant current LED driver module by Monolithic Power Systems, Inc. that is a part of the PMIC – LED Drivers family. This module is perfect for applications where a low solution cost and a maximum of 12 LEDs need to be driven by a single module. With its wide operating temperature range and voltage, easy to use working principle, and over-current protection, the MP3356DG-LF-Z is an excellent choice for low-cost LED lighting solutions.

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