IS31FL3248-TQLS4-TR

Overview

The IS31FL3248-TQLS4-TR is a linear LED lighting driver IC manufactured by Lumissil Microsystems. It features 48 constant current output channels with 16-bit PWM dimming resolution. The device is housed in a 64-pin eTQFP package measuring 7mm x 7mm and operates on a tape and reel basis.

Feature Summary

• Provides 48 independent constant current output channels for high-density LED arrays
• Supports 16-bit PWM dimming resolution for precise brightness control
• Utilizes linear topology for simplified circuit design

Applications

• High-density LED matrix displays
• Professional stage and architectural lighting systems
• Automotive interior ambient lighting modules

Procurement Notes

Verify the specific suffix TQLS4 against the official Lumissil datasheet to confirm pinout and thermal characteristics. Ensure the receiving facility handles ESD-sensitive components appropriately. Confirm that the 64-pin eTQFP footprint matches the target PCB layout before finalizing procurement orders.

Selection Notes

Select this component when a high channel count is required within a compact surface-mount form factor. The 16-bit resolution suits applications demanding smooth gradient transitions. Evaluate thermal management requirements due to the linear topology and high channel density in the 7x7mm package.

Part Context

This part belongs to the IS31FL32xx series of LED lighting drivers from Lumissil Microsystems. These industrial-grade components are designed for complex illumination tasks requiring extensive channel counts and high-resolution dimming capabilities without external multiplexing hardware.

Replacement Considerations

Direct substitutes include other 48-channel LED drivers from Lumissil, such as the IS31FL3246-X series, though pinouts and package types may differ. Verify electrical compatibility and mechanical fit before swapping.