TLC5943PWP

Overview

The TLC5943PWP is a Texas Instruments LED display driver housed in an HTSSOP-28 package. It operates within a supply voltage range of 3 V to 5.5 V and supports surface-mount installation. The device features sixteen channels with a maximum power dissipation of 3.958 W. It functions across a temperature range from -40°C to +85°C, drawing a maximum supply current of 50 mA. Key electrical characteristics include a low-level output current of 5 mA and a high-level output current of -1 mA.

Feature Summary

• Integrates seven-bit brightness control for each channel alongside error flag capabilities.
• Provides fault detection mechanisms including open and short circuit identification for LEDs.

Applications

• LED matrix displays
• Dot matrix signage
• General LED illumination systems

Procurement Notes

Verify the specific suffix against official documentation to confirm packaging configuration. Ensure the component meets RoHS compliance requirements for your assembly process. Confirm thermal management strategies align with the specified power dissipation limits during operation. Validate that the operating environment remains within the defined temperature boundaries.

Selection Notes

Choose this component when dedicated per-channel brightness adjustment is required without external PWM generation. Consider the HTSSOP-28 footprint constraints for PCB layout. Evaluate the 5 mA sink capability against the target LED forward current requirements. Assess the need for integrated fault detection to simplify system diagnostics.

Part Context

This part belongs to the TLC5943 series of LED drivers. It shares the HTSSOP-28 package form factor with related models like the TLC5941 and TLC5944. However, it differs by incorporating internal seven-bit brightness control rather than relying solely on external grayscale signals or EEPROM-based dot correction found in other variants.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.