MP3376GR-XXXX-Z

LED Driver IC Overview

The MP3376GR-XXXX-Z is an 8-channel synchronous boost WLED driver from Monolithic Power Systems, designed for LCD panel backlighting in tablets and laptops. It features a 3V to 30V input voltage range and supports output voltages up to 36V. Each channel delivers a maximum current of 50mA with a current matching accuracy of 2.5%. The device integrates an I2C interface for configuration and offers selectable switching frequencies ranging from 350kHz to 2.4MHz. It utilizes peak current mode control and PWM regulation within a QFN-24 (4mmx4mm) package.

LED Driver IC Feature Summary

• Integrates eight independent current channels with high precision matching for uniform backlight illumination.
• Supports multiple dimming modes including analog, PWM, and hybrid options via external inputs or the I2C digital interface.
• Incorporates comprehensive protection mechanisms such as over-temperature, over-current, LED open/short circuit detection, and over-voltage protection.

LED Driver IC Applications

• LCD panel backlighting for tablet computers
• LCD panel backlighting for laptop computers

LED Driver IC Procurement Notes

Verify the specific suffix configuration when ordering, as the XXXX placeholder indicates customizable parameters defined by the manufacturer's internal coding. Confirm that the selected variant aligns with the required switching frequency and dimming capabilities for the target application design.

LED Driver IC Selection Notes

Select this component for designs requiring precise multi-channel current balancing and flexible digital control. The synchronous topology reduces PCB footprint compared to asynchronous alternatives. Ensure the system input voltage remains within the specified 3V to 30V range during operation.

LED Driver IC Part Context

This part belongs to the MP3376 series of WLED drivers from Monolithic Power Systems. It represents a specialized solution for portable electronics where space efficiency and high brightness uniformity are critical requirements for display backlighting systems.

LED Driver IC Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult official manufacturer resources for potential cross-reference options if this specific variant is unavailable.

LED Driver IC FAQ

What types of dimming modes does the MP3376 support?

The device supports analog dimming, PWM dimming, and hybrid dimming modes. These can be controlled via external PWM inputs or through the integrated I2C interface.

How is the I2C address configured on this chip?

The I2C address is determined by the logic levels applied to the A0 and A1 pins, allowing for four distinct address configurations.