TLC5941QPWPRQ1

Overview

The TLC5941QPWPRQ1 is an automotive-grade LED driver IC featuring 16 constant current sink channels. It operates within a supply voltage range of 3V to 5.5V and supports output voltages up to 17V. Each channel delivers a maximum output current of 60mA. The device utilizes a shift register topology with PWM control for dimming. It is housed in a 28-HTSSOP package and is qualified under AEC-Q100 standards for operation between -40°C and +125°C.

Feature Summary

• Integrated dot correction capability for uniform brightness across channels
• Built-in LED open detection circuitry for fault monitoring
• Supports high-speed serial interface for data input and latch functions

Applications

• Automotive backlighting systems
• Vehicle signage and indicator displays
• Interior ambient lighting modules

Procurement Notes

Verify the specific suffix 'PWPRQ1' to confirm the HTSSOP-28 package, tape-and-reel quantity, and automotive grade qualification. Ensure the design accounts for the required external resistor settings for current programming and that the PCB layout supports the thermal dissipation requirements of the 28-pin PowerTSSOP form factor during continuous operation.

Selection Notes

Select this component when a 16-channel linear LED driver with integrated diagnostic features is required for automotive environments. It is suitable for designs needing precise current matching and grayscale control without external multiplexing. Consider the 28-pin footprint and the need for external current-setting resistors when evaluating board space and bill of materials constraints.

Part Context

This part belongs to the Texas Instruments TLC5941 family of LED drivers designed for automotive applications. It provides a solution for driving multiple LEDs with individual current control. The Q1 designation indicates compliance with automotive reliability standards, distinguishing it from standard commercial variants in terms of quality assurance and long-term availability commitments.

Replacement Considerations

Check for direct pin-compatible alternatives within the same TI family or other automotive-qualified 16-channel LED drivers. Verify that any substitute matches the 17V output voltage rating and 60mA per channel specification. Ensure the replacement supports the same 28-pin HTSSOP package and AEC-Q100 grade if automotive certification is mandatory.