TLC5929PWP

Overview

The TLC5929PWP is a Texas Instruments LED driver IC featuring 16 constant current outputs in a 24-pin HTSSOP package. It operates on a 3V to 5.5V supply with 10V output voltage capability and 50mA per channel current. The device utilizes a serial shift register interface with a maximum frequency of 33MHz. It supports linear dimming and includes internal switches for direct LED connection. The component functions within an ambient temperature range of -40°C to +85°C.

Feature Summary

• Integrates 16 constant current sinks with individual control via serial input
• Includes diagnostic features such as LED open, short-to-ground, and short-to-VLED detection
• Supports linear brightness adjustment through external resistor programming
• Features error flag output for fault status monitoring

Applications

• General LED lighting systems
• Signage displays
• Backlighting applications

Procurement Notes

Verify the specific suffix 'PWP' confirms the HTSSOP-24 package and commercial temperature grade. Confirm RoHS compliance status and moisture sensitivity level requirements for your assembly process. Ensure the serial interface timing matches your controller specifications. Check for any specific ordering prefixes or suffixes that may affect availability or documentation.

Selection Notes

Select this part when 16 individually controllable constant current channels are required in a compact surface-mount package. It is suitable for designs needing integrated fault detection and linear dimming capabilities. Consider the 33MHz serial clock speed for high-refresh-rate applications. Evaluate thermal performance within the HTSSOP-24 enclosure for your power dissipation needs.

Part Context

This component belongs to the TLC5929 family of LED drivers from Texas Instruments. It shares functional similarities with other members like the TLC5929RGER but differs in packaging. The PWP variant specifically denotes the plastic thin-shrink small-outline package with exposed pad, distinguishing it from QFN alternatives.

Replacement Considerations

TLC5929RGET is a documented substitute offering identical functionality in a different VQFN package.