TLC5952DAP

Overview

The TLC5952DAP is a 24-channel constant-current LED driver manufactured by Texas Instruments, housed in a 32-pin HTSSOP package. It operates on a supply voltage ranging from 3 V to 5.5 V and supports an output voltage of up to 15 V. The device provides channel currents of 26.2 mA or 35 mA and features a 35 MHz shift register interface. It includes global brightness control and open-short detection capabilities, with an operating temperature range of -40°C to +85°C.

Feature Summary

• Integrates a 24-channel constant-current sink architecture for uniform LED illumination.
• Includes internal diagnostic functions for detecting open and shorted LED conditions.
• Features a high-speed serial interface for data transmission and brightness adjustment.

Applications

• Signage displays
• LED lighting systems
• Electronic instrument panels

Procurement Notes

Verify the specific suffix against the manufacturer datasheet to confirm package type and tape/reel specifications. Ensure environmental compliance requirements match project standards. Confirm lead times directly with authorized distributors as availability fluctuates. Validate that the operating voltage range aligns with the target system power supply constraints before finalizing procurement.

Selection Notes

Select this component when a high-density solution for driving multiple LEDs is required without external current-setting resistors. The integrated diagnostics simplify fault management in complex lighting arrays. Consider the thermal performance within the HTSSOP package for high-current applications. Verify interface compatibility with the host microcontroller's clock speed and protocol requirements.

Part Context

This part belongs to the TLC5952 family of LED drivers designed for high-channel-count applications. It serves as a linear constant-current source, distinguishing it from boost or buck topologies found in other series. The device is intended for commercial and industrial environments requiring reliable LED control and status monitoring.

Replacement Considerations

TLC5952DAPR is the reel variant of this component. Check datasheets for pinout and electrical parameter equivalence before substitution.