IS32LT3141B-GRLA3-TR

Overview

The IS32LT3141B-GRLA3-TR is a single-channel linear LED driver IC manufactured by Lumissil Microsystems. It provides a constant output current of 450 mA and operates within an input voltage range of 4.5 V to 40 V. The device features a 1-Wire serial bus interface for configuration and control. It is housed in an SOP-8-EP package with dimensions of 5.0 mm x 6.0 mm. The component supports a maximum power dissipation of 2.75 W and functions reliably across a temperature range of -40°C to +150°C.

Feature Summary

• Integrates a 1-Wire serial bus interface for simplified communication and control
• Provides regulated constant current output suitable for high-power LED applications
• Includes thermal shutdown protection to ensure operational safety under overload conditions

Applications

• Automotive exterior lighting systems
• Industrial LED illumination fixtures
• General-purpose high-brightness LED drivers

Procurement Notes

Verify the specific suffix GRLA3-TR against the manufacturer's latest datasheet to confirm pinout compatibility and packaging specifications. Confirm RoHS compliance status and moisture sensitivity level requirements prior to integration into the assembly process. Ensure the design accounts for the specified thermal dissipation capabilities of the SOP-8-EP package.

Selection Notes

Select this component when a single-channel, high-current linear drive solution with digital control via 1-Wire is required. It is appropriate for designs needing operation up to 40 V input. Consider alternative models if multiple independent channels or different interface protocols are necessary for the system architecture.

Part Context

This part belongs to the IS32LT series of linear LED drivers from Lumissil Microsystems. The series focuses on providing robust current regulation for automotive and industrial lighting applications. The IS32LT3141B variant specifically targets applications requiring higher current output compared to lower-rated counterparts in the same family.

Replacement Considerations

Publicly confirmed substitute part numbers for this specific model were not identified in the provided documentation.