TPS61194PWPR

Overview

The TPS61194PWPR is a high-performance, low-EMI four-channel LED driver from Texas Instruments. It features an integrated boost DC-DC converter with an input voltage range of 4.5 V to 40 V and a maximum output voltage of 45 V. The device provides four high-precision current sinks with typical current matching of 1%. Operating frequencies are adjustable between 300 kHz and 2.2 MHz. It supports PWM dimming and includes thermal shutdown protection. The component is housed in a 20-pin HTSSOP (PWP) package and operates within a temperature range of -40°C to +85°C.

Feature Summary

• Integrates a low-EMI boost converter for efficient power management
• Provides four independent high-precision current sink channels
• Supports wide input voltage ranges up to 40 V
• Includes thermal shutdown and PWM dimming control

Applications

• Automotive exterior lighting systems
• Interior ambient LED illumination
• General-purpose multi-channel LED driving
• High-efficiency LED backlighting solutions

Procurement Notes

Verify the specific suffix 'PWPR' confirms the HTSSOP-20 package and tape-and-reel quantity. Confirm RoHS compliance status through official manufacturer documentation. Ensure the application environment stays within the specified -40°C to +85°C operating temperature range. Check for automotive qualification requirements if used in vehicle systems, as standard and Q1 variants may differ.

Selection Notes

Select this part when four independent LED channels with precise current matching are required. The wide input voltage range suits battery-powered or automotive applications. Consider the adjustable switching frequency to optimize EMI performance against sensitive circuits. Verify that the 100 mA per channel limit meets the target LED load requirements.

Part Context

This component belongs to the TPS61194 family of high-performance LED drivers designed for low electromagnetic interference. It integrates the power stage and control logic into a single compact package. The device simplifies design by eliminating external gate drivers and complex compensation networks typically needed in discrete LED driver solutions.

Replacement Considerations

The TPS61194PWPRQ1 is a qualified automotive-grade variant of this component. Verify pin compatibility and electrical specifications before substitution. Ensure the replacement meets the specific EMI and reliability standards required for the target application.