TLC5925IDWR

Overview

The TLC5925IDWR is a Texas Instruments LED lighting driver IC featuring sixteen constant current sink channels. It utilizes a boost topology to drive LEDs with an output current of 45 mA per channel and supports a maximum supply voltage of 5.5 V. The device operates within a temperature range of -40°C to +125°C and includes thermal shutdown protection. Packaged in a 24-pin SOIC, it functions as a low-power solution for LED applications.

Feature Summary

• Provides sixteen independent constant current sink channels for uniform LED brightness control
• Integrates a boost converter topology to support high-voltage LED string driving from low supply voltages
• Includes built-in thermal shutdown circuitry to protect the device during over-temperature conditions

Applications

• LED backlighting systems
• General LED illumination circuits
• Portable electronic display drivers

Procurement Notes

Verify the specific package suffix 'IDWR' corresponds to the 24-pin SOIC variant when sourcing. Confirm that the required output current and voltage levels align with the component's 45 mA and boost specifications. Ensure environmental compliance requirements match the manufacturer's RoHS declarations for this specific part number.

Selection Notes

Select this component for designs requiring sixteen individually controlled LED channels with integrated boost regulation. It is suitable for space-constrained applications due to its compact SOIC packaging. Consider the operating temperature range and thermal management needs when designing the PCB layout for optimal performance.

Part Context

This part belongs to the TLC5925 series of low-power LED drivers from Texas Instruments. The series focuses on providing efficient constant current solutions for various LED lighting applications. The IDWR suffix specifically denotes the small-outline integrated circuit package configuration used for surface-mount assembly.

Replacement Considerations

TLC5925IPWR (TSSOP-24 package), TLC5925IDBQR (QSOP-24 package)