TLC5955DCAR

Overview

The TLC5955DCAR is a Texas Instruments LED display driver featuring 48 channels with 16-bit PWM resolution. It operates within a supply voltage range of 3 V to 5.5 V and supports output voltages up to 10 V. The device utilizes an HTSSOP-56 package for surface mount installation. It functions across a temperature range of -40°C to +85°C. Key electrical characteristics include analog dimming capabilities and internal switches for each channel.

Feature Summary

• Provides 16-bit PWM resolution for precise brightness control across 48 independent channels.
• Integrates dot correction functionality to ensure uniform LED intensity distribution.
• Includes fault detection mechanisms such as LED open detection and error flagging.
• Supports serial data input for efficient daisy-chaining in large display arrays.

Applications

• Outdoor LED signage and billboards
• Indoor full-color LED displays
• Large-scale video walls
• Architectural lighting systems

Procurement Notes

Verify the specific suffix DCAR corresponds to the HTSSOP-56 package variant when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure ESD protection protocols are followed during handling due to moisture sensitivity classification. Cross-reference datasheet revisions to confirm pinout consistency with existing designs.

Selection Notes

Select this component for applications requiring high-resolution grayscale rendering without external microcontrollers for timing. Consider the thermal performance of the HTSSOP-56 package relative to board layout constraints. Evaluate power dissipation limits based on the total number of simultaneously active channels. Verify interface compatibility with the host controller's serial data rates.

Part Context

This part belongs to the TLC5955 family of linear LED drivers designed for high-density display applications. It complements other variants like the TLC5955RTQT, which offers a QFN package option. The series is characterized by its ability to drive common-anode LED matrices with high accuracy and diagnostic features.

Replacement Considerations

• TLC5955DCA
• TLC5955RTQR

FAQ

What is the maximum output voltage supported by the TLC5955DCAR?

The device supports output voltages up to 10 V, allowing it to drive various LED configurations.

Does the TLC5955DCAR support daisy-chaining?

Yes, the device features serial data input and output pins that enable multiple units to be connected in series for larger displays.