TLC5948APWPR

Overview

The TLC5948APWPR is a 16-channel LED lighting driver IC manufactured by Texas Instruments. It features an integrated boost converter topology with a maximum output voltage of 10 V and a per-channel output current capability of 60 mA. The device operates on a supply voltage range of 3 V to 5.5 V and supports a working frequency of 33 MHz. It is housed in a 24-pin HTSSOP package and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Integrates a boost converter for driving high-voltage LED loads from low-voltage supplies
• Provides independent 16-channel PWM control with dot correction capabilities
• Includes hardware-based fault detection mechanisms for open LED identification

Applications

• LED backlighting systems requiring high brightness and uniformity
• General-purpose LED illumination circuits
• Display drivers utilizing common-anode LED configurations

Procurement Notes

Verify the specific suffix 'PWPR' corresponds to the HTSSOP-24 package and reel packaging configuration. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure input voltage levels remain within the specified 3 V to 5.5 V range to prevent operational anomalies or device damage during system validation.

Selection Notes

Select this component when a single-chip solution is required to drive multiple LEDs with individual brightness control without external boost circuitry. The integrated boost feature simplifies board layout compared to linear drivers. Consider the 60 mA output limit per channel when designing thermal management strategies for high-density LED arrays.

Part Context

This part belongs to the TLC5948A series, designed specifically for LED lighting applications. It differs from display-focused variants by including an internal boost regulator, allowing it to handle higher forward voltage drops across LED strings. The PWPR designation indicates surface-mount assembly in a tape-and-reel format suitable for automated manufacturing processes.

Replacement Considerations

TLC5948APWP: Identical electrical specifications but utilizes a TSSOP-24 package instead of HTSSOP-24. Verify pin compatibility and thermal performance differences before substitution.