LM3549SQ/NOPB

LED Driver IC Overview

The LM3549SQ/NOPB is a high-power sequential LED driver IC from Texas Instruments, designed for RGB LED applications. It operates within a supply voltage range of 2.7 V to 5.5 V and supports an output current of up to 700 mA. The device features three independent channels and utilizes I2C control for configuration. It is housed in a WQFN-24 package and functions across a temperature range of -30°C to +85°C.

LED Driver IC Feature Summary

• Supports I2C digital control interface for precise channel management
• Provides three independent output channels for RGB LED sequencing
• Designed for high-power sequential LED driving applications

LED Driver IC Applications

• RGB LED lighting systems
• LED illumination development
• Sequential LED driver circuits

LED Driver IC Procurement Notes

Verify the specific suffix 'SQ' against official datasheets to confirm automotive qualification status and operating temperature range. Ensure compatibility with the WQFN-24 footprint during PCB layout. Confirm that the I2C address and control logic align with the system microcontroller requirements before finalizing procurement.

LED Driver IC Selection Notes

Select this component when designing RGB LED drivers requiring digital I2C control and high output current capability. It is suitable for applications needing sequential channel management within a compact WQFN-24 package. Consider the -30°C to +85°C operating range for environmental constraints.

LED Driver IC Part Context

This part belongs to the LM3549 family of LED lighting drivers. It is distinct from evaluation boards like the LM3549SQEV/NOPB and other variants such as the LM3549SQX/NOPB or LM3549SQE/NOPB, which may differ in packaging or reel specifications while sharing core functionality.

LED Driver IC Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify cross-references through official manufacturer resources.