IS32LT3125A-GRLA3-TR

Overview

The IS32LT3125A-GRLA3-TR is a single-output linear LED driver IC manufactured by Lumissil Microsystems. It features a programmable current regulator with one output channel capable of delivering up to 250mA. The device operates within an input voltage range of 4.5V to 40V and supports PWM dimming functionality. Designed for surface-mount applications, it utilizes a TSSOP-14 package. The component is rated for an operating temperature range from -40°C to +150°C and includes thermal protection mechanisms.

Feature Summary

• Single-output linear LED driver architecture
• Programmable constant current regulation
• Integrated PWM dimming capability
• Thermal shutdown protection

Applications

• General-purpose LED lighting systems
• Automotive interior illumination
• Industrial indicator lamps
• Consumer electronics backlighting

Procurement Notes

Verify the specific ordering suffix and package variant against the official Lumissil datasheet to ensure compatibility with design requirements. Confirm that the TR designation corresponds to the correct reel packaging specification. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and traceability before procurement.

Selection Notes

Select this component for applications requiring a single-channel linear LED driver with integrated dimming. Ensure the load current does not exceed the 250mA limit. Verify that the system voltage falls within the specified 4.5V to 40V range. Consider the TSSOP-14 package constraints for PCB layout and thermal management requirements in the final design.

Part Context

This part belongs to the IS32LT3125/3125A family of linear programmable current regulators. It is designed as a cost-effective solution for driving LEDs where precise current control and dimming are necessary. The series targets general-purpose lighting applications requiring reliable performance across wide temperature ranges.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult Lumissil Microsystems for potential cross-reference options or updated product recommendations if this component is discontinued or unavailable.