MP3399EY SOP28 IC original

MP3399EY SOP28 IC

original

The MP3399 is a step-up controller with 12- channel current sources designed for driving the WLED arrays for large size LCD panel backlighting applications. The MP3399 is flexible for extending LED channels with two or more MP3399s in parallel while operating from a single Inductor power source. The MP3399 uses current mode, fixed frequency architecture. The switching frequency is programmable by an external frequency setting resistor. It drives an external MOSFET to boost up the output voltage from a 5V to 28V input supply. The MP3399 regulates the current in each LED string to the programmed value set by an external current setting resistor.