TPS61193PWPRQ1

Overview

The TPS61193PWPRQ1 is a low-EMI, high-performance automotive LED driver featuring an integrated DC-DC converter and three independent current sink channels. It supports boost and SEPIC topologies with an input voltage range of 4.5 V to 40 V. The device delivers up to 100 mA per channel with typical current matching of 1%. Operating frequencies are adjustable from 300 kHz to 2.2 MHz, and the output voltage reaches 45 V. It functions within a temperature range of -40°C to +85°C in a 20-HTSSOP package.

Feature Summary

• Integrated DC-DC converter supporting boost and SEPIC topologies for flexible LED string configurations
• Three high-precision current sinks ensuring accurate LED brightness control with tight current matching
• Low electromagnetic interference design optimized for sensitive automotive electronic environments
• Adjustable switching frequency allowing optimization for efficiency and external component size

Applications

• Automotive exterior lighting systems requiring high reliability
• Interior cabin illumination circuits
• Dashboard and instrument cluster backlighting
• Signaling and indicator light arrays

Procurement Notes

Verify that the specific part number suffix matches the required automotive qualification standards and packaging configuration. Confirm that the HTSSOP-20 footprint aligns with the target PCB layout constraints. Ensure compatibility with the intended operating temperature range and input voltage profiles before finalizing procurement orders.

Selection Notes

Select this component when designing automotive lighting applications requiring precise multi-channel current regulation. Consider its integrated power stage for simplified bill of materials compared to discrete solutions. Evaluate the adjustable frequency range against EMI requirements and inductor size constraints for the specific enclosure geometry.

Part Context

This device belongs to the TPS61193-Q1 family of automotive-grade LED drivers. It shares functional similarities with other members like the TPS61194 but offers specific channel counts and performance characteristics tailored for complex lighting architectures. The Q1 suffix indicates compliance with automotive quality and reliability standards.

Replacement Considerations

Direct substitutes include the TPS61193PWPR for non-automotive contexts or the TPS61194PWPRQ1 if four channels are required. Verify pinout compatibility and thermal performance when swapping between these variants to ensure system integrity without redesigning the PCB.