IS32LT3143-ZLA3-TR

Overview

The IS32LT3143-ZLA3-TR is a three-channel linear LED driver IC manufactured by Lumissil Microsystems. It operates within a supply voltage range of 5 V to 40 V and supports individual PWM dimming for each channel. The device features single LED short detection capabilities and is housed in an eTSSOP-16 package measuring 5mm x 6.4mm. It functions reliably across a temperature range of -40°C to +150°C with a maximum power dissipation of 2.75 W.

Feature Summary

• Provides three independent constant current output channels for precise LED control
• Supports individual pulse-width modulation (PWM) dimming for each channel
• Integrates single LED short circuit detection for enhanced system safety

Applications

• LED lighting systems requiring multi-channel control
• Automotive interior or exterior lighting modules
• General illumination applications utilizing linear driver topologies

Procurement Notes

Verify the specific suffix ZLA3 against the manufacturer's latest datasheet to confirm pinout, thermal characteristics, and packaging specifications. Ensure compatibility with the target PCB footprint, specifically the eTSSOP-16 dimensions. Confirm that the operating voltage and current requirements align with the component's 5V to 40V input range and linear regulation limits before finalizing procurement.

Selection Notes

Select this component when a linear topology is preferred for simplicity and low noise in multi-channel LED applications. It is suitable for designs requiring individual channel dimming without complex external circuitry. Consider the thermal dissipation constraints given the 2.75 W power limit and the eTSSOP-16 package size. Verify that the required output current falls within the operational capabilities of the three integrated channels.

Part Context

This part belongs to the IS32LT series of high-side linear LED drivers from Lumissil Microsystems. These devices are designed for applications demanding reliable constant current regulation with integrated fault protection. The series typically targets automotive and industrial lighting sectors where robustness and precise dimming control are critical requirements.

Replacement Considerations

Check for IS32LT3143A variants which may offer updated revisions or evaluation board support. Verify pin-to-pin compatibility with other three-channel linear drivers if cross-referencing is necessary.