MPQ3326GR-AEC1-P

Overview

The MPQ3326GR-AEC1-P is an automotive-grade LED lighting driver IC from Monolithic Power Systems, designed for high-channel applications. It features 16 independent output channels, each capable of delivering up to 50 mA. The device integrates both Boost and Buck DC-DC converter topologies within a single QFN-24 package. It supports a wide input voltage range of 4 V to 16 V and operates at a switching frequency of 245 Hz. The IC provides adjustable output voltage and includes separated PWM and analog dimming capabilities controlled via an I2C interface. It is qualified under AEC-Q100 standards and functions reliably across a temperature range of -40°C to +150°C.

Feature Summary

• Integrates 16 independent current-regulated output channels with short circuit and thermal protection mechanisms.
• Supports flexible dimming through separated PWM and analog control interfaces managed via I2C communication.
• Combines Boost and Buck DC-DC converter topologies in a compact surface-mount package for efficient power management.

Applications

• Automotive interior ambient lighting systems
• High-density LED matrix displays in vehicles
• Multi-zone LED illumination controllers

Procurement Notes

Verify the complete part number including suffixes such as GR-AEC1-P to ensure correct packaging and automotive qualification status. Confirm that the required I2C address configuration matches your system design. Check for RoHS compliance documentation specific to the manufacturing batch. Ensure the selected development kit EVQ3326-R-00A is available if hardware validation is planned prior to production.

Selection Notes

Select this component when designing systems requiring high channel counts with individual current regulation. The integrated dual topology allows flexibility in driving various LED string configurations without external boost or buck stages. Consider the 50 mA per channel limit when calculating total power dissipation. The AEC-Q100 qualification makes it suitable for harsh automotive environments where reliability is critical.

Part Context

This device belongs to the MP3364 series family of LED drivers. It shares functional similarities with other multi-channel drivers but is distinct in its specific 16-channel architecture and combined buck-boost capability. The MPQ prefix indicates automotive grade qualification, differentiating it from commercial variants like the MP3326.

Replacement Considerations

Direct substitutes are not explicitly listed in public documentation. Evaluate other MPS multi-channel drivers based on channel count and current ratings. Verify pin compatibility and software register maps before considering alternative part numbers from different manufacturers.