TLC5942PWPR

Overview

The TLC5942PWPR is a 16-channel linear LED driver IC manufactured by Texas Instruments, housed in a 28-HTSSOP package. It operates on a supply voltage ranging from 3V to 5.5V with a maximum power supply current of 50mA per channel. The device supports a serial shift register interface and features 12-bit PWM dimming capability. It includes internal GS clock functionality and error flag outputs for fault detection. The component functions within a temperature range of -40°C to +85°C.

Feature Summary

• Integrates a serial shift register for simplified control of individual LED outputs
• Provides 12-bit PWM dimming resolution for precise brightness adjustment
• Includes internal gray scale clock generation to reduce external component count
• Features error flag output for monitoring open or short circuit conditions

Applications

• LED backlighting systems
• General LED illumination arrays
• Display driver circuits requiring linear drive topology

Procurement Notes

Verify the specific ordering suffix 'PWPR' confirms the tape-and-reel packaging format, as this differs from tube-packaged variants like the PWP. Confirm RoHS compliance status and moisture sensitivity level requirements for your assembly process. Ensure the 28-HTSSOP footprint matches your PCB design constraints. Cross-reference the manufacturer part number against distributor listings to confirm current availability and lifecycle status.

Selection Notes

Select this component when a linear drive topology is required rather than constant current sink architectures. The 16-channel capacity suits applications needing moderate output density without complex multiplexing. The HTSSOP package offers space efficiency for compact designs. Consider the 30MHz frequency limit for high-speed serial data transmission requirements. Evaluate thermal dissipation needs given the linear regulation method used for current control.

Part Context

This part belongs to the TLC594x series of LED drivers from Texas Instruments. It shares architectural similarities with the TLC5940 and TLC5941 but utilizes a linear drive mechanism instead of constant current sinks. The PWPR suffix indicates a reel-based packaging option suitable for automated surface-mount assembly processes.

Replacement Considerations

The TLC5942PWP serves as a tube-packaged alternative within the same functional family. Direct pin-to-pin replacements may require verification of packaging differences. Other series members like the TLC5940 offer similar channel counts but differ in drive topology.