Monolithic Power Systems (MPS) MPQ3369-AEC1 6-Channel Boost WLED Driver is a step-up converter with six-channel current sources, designed to drive white LED arrays as backlighting in small-to-mid-size LCD panels. The MPQ3369-AEC1 uses peak current mode as its PWM control architecture to regulate the boost converter. Six-channel current sources are applied to the LED cathode to adjust the LED brightness. It regulates the current in each LED string to the value set via an external current-setting resistor, with 2.5% current regulation accuracy between strings.
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