TLC5925IPWRG4

Overview

The TLC5925IPWRG4 is a low-power, 16-channel constant-current LED sink driver manufactured by Texas Instruments. It features a boost topology with an output current of 45 mA per channel and supports a supply voltage range from 3 V to 5.5 V. The device operates at frequencies up to 30 MHz and delivers an output voltage of 17 V. Packaged in a TSSOP-24 form factor, it functions within a temperature range of -40°C to +125°C.

Feature Summary

• Provides 16 independent channels for constant-current LED sinking
• Integrates a 16-bit shift register and data latches for serial data input
• Includes thermal shutdown protection for enhanced reliability

Applications

• LED lighting systems
• Display backlighting applications
• General-purpose LED indicator circuits

Procurement Notes

Verify the specific ordering suffix (e.g., G4) against the manufacturer's official documentation to confirm compliance with RoHS standards and material declarations. Ensure the package type matches the required PCB footprint and that the operating temperature range aligns with the intended environmental conditions before finalizing procurement.

Selection Notes

Select this component when a high-density solution for driving multiple LEDs is required without complex external circuitry. The integrated shift register simplifies interface requirements, while the fixed 45 mA output current suits standard LED arrays. Consider the TSSOP-24 package constraints and thermal management capabilities for the specific application layout.

Part Context

This part belongs to the TLC5925 series of low-power LED drivers designed for efficient illumination control. It serves as a direct replacement for previous iterations within the same family, maintaining functional compatibility while adhering to updated manufacturing standards. The series is widely used in consumer electronics requiring reliable LED regulation.

Replacement Considerations

The TLC5925IDBQR is a confirmed substitute offering identical electrical specifications but utilizes a QSOP-24 package instead of TSSOP-24. Verify pinout compatibility and physical dimensions before swapping packages in existing designs.