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MPQ3386-AEC1 - 50V 6 String White LED Driver

Description

The MPQ3386 is a step-up converter with 6channel current sources designed for driving the white LED arrays for large size LCD panel backlighting applications.

The MPQ3386 uses current mode, fixed frequency architecture.

The switching frequency can be selected at 1.25MHz or 625kHz.

Features

  • external PWM dimming or DC input PWM dimming, which allows the flexible control of the backlighting luminance under wide range of the ambient brightness, and also avoids the possibility of PWM dimming audible noise. The dimming PWM signal can be generated internally, and the dimming frequency is programmed by an external setting capacitor.

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MPQ3386-AEC1 50V, 6 String White LED Driver AEC-Q100 Qualified DESCRIPTION The MPQ3386 is a step-up converter with 6channel current sources designed for driving the white LED arrays for large size LCD panel backlighting applications. The MPQ3386 uses current mode, fixed frequency architecture. The switching frequency can be selected at 1.25MHz or 625kHz. It generates an output voltage up to 50V from a 4.5V to 25V input supply. The MPQ3386 regulates the current in each LED string to the user programmed value set by an external current setting resistor. The MPQ3386 applies 6 internal current sources in each LED string terminal to get current balance. And the current matching achieves 3% regulation accuracy between strings.
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