TLC5941NT

Overview

The TLC5941NT is a 16-channel LED driver manufactured by Texas Instruments, housed in a 28-pin DIP package. It provides individual DC current control for each channel with 12-bit grayscale PWM dimming capability. The device features an internal shift register and dot correction to ensure uniform brightness across all outputs. Operating voltage ranges from 3V to 5.5V, with output currents up to 80mA per channel. It supports serial data input for efficient interface connectivity.

Feature Summary

• Provides 16 independent channels with individual DC current control for precise LED brightness management
• Integrates 12-bit grayscale PWM dimming for high-resolution visual display applications
• Includes internal dot correction circuitry to compensate for manufacturing variations and ensure uniformity
• Utilizes a serial interface with an internal shift register for simplified data transmission

Applications

• LED display panels requiring high grayscale resolution
• Signage systems needing uniform brightness control
• Backlighting units for industrial displays
• General-purpose LED matrix drivers

Procurement Notes

Verify the specific package variant when ordering, as the base part number may correspond to different physical footprints such as PowerTSSOP or standard DIP. Confirm that the required lead time aligns with project schedules, noting that manufacturer specifications may indicate short availability windows. Ensure compatibility with existing serial communication protocols on the host system before finalizing procurement decisions.

Selection Notes

Select this component when 16-channel linear current control with high-resolution grayscale is required. It is suitable for designs prioritizing brightness uniformity through integrated dot correction. Consider the 28-pin DIP form factor for through-hole mounting requirements. Evaluate if the 80mA per-channel limit meets the load requirements of the target LEDs without external amplification.

Part Context

This device belongs to the TLC5941 family of LED drivers designed for display applications. It offers a balance between channel count and control precision. The NT suffix typically denotes the specific package type and temperature range configuration provided by Texas Instruments. It serves as a dedicated solution for managing multiple LED strings in static or multiplexed display architectures.

Replacement Considerations

Publicly confirmed substitute part numbers include the TLC5941PWP, which shares the same functional core but utilizes a 28-PowerTSSOP surface-mount package. Users must verify pin-to-pin compatibility and thermal dissipation characteristics when switching between DIP and SMD variants. No other direct cross-model replacements are documented in the provided source material.