Monolithic Power Systems, Inc. LED Drivers MP3384EQ-LF-P

The MP3384EQ-LF-P is a step-up LED driver designed for driving white LED arrays in large LCD panel backlighting applications. It operates with an input voltage range of 4.5V to 25V and can generate an output voltage of up to 50V. The device features four independent current sources, providing a current matching accuracy of 2.5% between LED strings, which is essential for uniform brightness. The MP3384 supports selectable switching frequencies of 1.25MHz or 625kHz and includes PWM dimming capability. Protection features include under voltage lockout, current limiting, over voltage protection, and thermal shutdown, ensuring reliable operation. The device is housed in a compact QFN16 package measuring 3mm x 3mm, making it suitable for space-constrained applications. Typical applications include notebook PCs, digital picture frames, and automotive systems.