IS31LT3178-GRLS4-TR

Overview

The IS31LT3178-GRLS4-TR is a linear LED driver IC manufactured by Lumissil Microsystems, designed for lighting applications. It features one output capable of delivering up to 200mA with a maximum output voltage of 42V. The device supports PWM dimming and includes an internal switch. It operates within a temperature range of -40°C to 125°C (TA) and is supplied in an 8-SOP-EP package with a width of 3.90mm. The minimum supply voltage is 5V, and the maximum is 42V.

Feature Summary

• Linear LED driver with integrated power MOSFET
• Supports PWM dimming functionality
• Includes built-in protections for extended-life operation

Applications

• General lighting
• Commercial lighting
• Residential lighting

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for End-of-Life notices, as this part may be discontinued. Ensure packaging specifications match project requirements, noting available reel or cut tape options if still active.

Selection Notes

Select this component for single-channel linear LED driving needs requiring up to 200mA current. Consider the 8-SOP-EP package for surface mount assembly. Evaluate thermal management requirements given the linear regulation topology and operating temperature range of -40°C to 125°C.

Part Context

This part belongs to the Lumissil H-BLED Drivers portfolio, which addresses general lighting applications using monolithic-based solutions. The series offers design flexibility and built-in protections suitable for commercial, residential, and automotive markets.

Replacement Considerations

Check for official substitute part numbers from Lumissil Microsystems. Verify pin compatibility and electrical specifications before replacing.