IS32LT3144-ZLA3-TR

Overview

The IS32LT3144-ZLA3-TR is a three-channel linear LED driver IC from Lumissil Microsystems. It features individual PWM dimming and analog dimming capabilities for precise brightness control across all channels. The device is housed in an eTSSOP-16 package with dimensions of 5mm x 6.4mm, designed for compact applications requiring reliable multi-channel LED regulation.

Feature Summary

• Three independent output channels for simultaneous LED control
• Individual PWM dimming capability per channel for granular brightness adjustment
• Analog dimming support for global current regulation
• Linear topology design for stable constant current operation

Applications

• Automotive interior lighting systems
• Dashboard and instrument cluster illumination
• Ambient cabin lighting modules
• Multi-zone LED accent lighting setups

Procurement Notes

Verify the exact part number suffix against official Lumissil documentation to ensure correct packaging and tape-and-reel specifications. Confirm that the eTSSOP-16 footprint matches your PCB layout requirements. Check for any specific automotive qualification certifications if used in safety-critical environments. Ensure thermal management strategies align with the linear driver's power dissipation characteristics.

Selection Notes

Select this component when a compact solution for three-channel LED control is required. The combination of PWM and analog dimming offers flexibility for different control architectures. Consider the linear topology's efficiency implications compared to switching drivers. Verify input voltage ranges and thermal performance under maximum load conditions before finalizing the design.

Part Context

This part belongs to Lumissil's IS32LT series of linear LED drivers, which are optimized for automotive and industrial applications. The series provides various channel counts and interface options. The IS32LT3144 specifically targets applications needing multiple independently controllable outputs in a small form factor.

Replacement Considerations

Check Lumissil datasheets for other members of the IS32LT family with similar channel counts. Verify pin compatibility and electrical parameters before substituting with other three-channel linear drivers from different manufacturers.