TLC5928RGET

Overview

The TLC5928RGET is a Texas Instruments LED lighting driver IC featuring 16 constant current outputs in a VQFN-24 package. It utilizes a boost topology with an input voltage range of 3 V to 5.5 V and delivers up to 35 mA per channel at a maximum output voltage of 17 V. Operating frequencies reach 35 MHz, supporting ON/OFF control and LED open detection (LOD). The device functions within a temperature range of -40°C to +85°C.

Feature Summary

• Integrates 16 independent constant current channels for uniform LED illumination
• Includes built-in LED open detection circuitry for fault monitoring
• Supports serial data transfer via shift register interface for efficient control

Applications

• LED backlighting systems for displays
• General LED lighting fixtures
• Portable electronic device illumination

Procurement Notes

Verify the specific suffix RGET confirms the VQFN-24 package and reel packaging configuration. Ensure compatibility with the required operating temperature range and humidity sensitivity handling procedures during assembly. Confirm that the 35 mA output current meets the target LED string requirements without exceeding thermal limits.

Selection Notes

Select this component when a high-channel-count driver with integrated fault detection is required. The boost topology allows driving LEDs with forward voltages higher than the supply rail. Consider the VQFN-24 footprint for space-constrained designs requiring surface-mount installation.

Part Context

This part belongs to the TLC5928 series of 16-channel constant current LED drivers from Texas Instruments. The series offers various package options including SSOP and VQFN variants. These drivers are designed for applications requiring precise current regulation and simple serial control interfaces.

Replacement Considerations

TLC5928RGER is a verified alternative with identical electrical specifications but potentially different packaging or tape-and-reel variations.