TLC59581RTQR

Overview

The TLC59581RTQR is a Texas Instruments LED lighting driver IC featuring 48 constant current channels in a 56-pin QFN package. It operates within a supply voltage range of 3V to 5.5V and supports output voltages up to 10V. The device provides per-channel PWM control with fault detection capabilities, including open and short-to-ground LED diagnostics. It functions reliably across an operating temperature range of -40°C to +85°C.

Feature Summary

• Provides independent pixel-level LED PWM control for high-resolution displays
• Integrates error flagging and fault detection for LED open and short circuits
• Utilizes a shift register topology for efficient serial data input processing

Applications

• Signage systems requiring high channel count LED drivers
• Large format display backlights
• Architectural lighting control units

Procurement Notes

Verify the specific suffix 'RTQR' against official Texas Instruments documentation to confirm the reel packaging configuration and moisture sensitivity level. Ensure compatibility with your PCB footprint for the 56-QFN package. Cross-reference the datasheet for any recent product change notices that may affect assembly or material specifications.

Selection Notes

Select this component when designing systems requiring 48 individually addressable LED channels with linear regulation. Consider the thermal performance of the QFN package under maximum load conditions. Verify that the host controller interface matches the required shift register data input protocol for seamless integration into the design.

Part Context

This part belongs to the TLC59581 series of LED drivers from Texas Instruments. It is designed for applications demanding precise current control and diagnostic feedback. The RTQR suffix indicates a specific tape and reel packaging option suitable for automated surface-mount assembly processes.

Replacement Considerations

TLC5958RTQR is listed as a parameter equivalent substitute by distributors.