TPS61042DRBTG4

Overview

The TPS61042DRBTG4 is a constant current LED driver IC from Texas Instruments, featuring a boost converter topology. It operates with an input voltage range of 1.8 V to 6 V and delivers up to 500 mA output current. The device supports a maximum output voltage of 30 V and functions at a switching frequency of 1 MHz. It is housed in an SON-8 package and operates within a temperature range of -40°C to +85°C.

Feature Summary

• Integrated boost converter for efficient step-up voltage conversion
• Constant current regulation capability for precise LED driving
• Supports PWM dimming control via the CTRL pin

Applications

• LED lighting systems requiring constant current drive
• Portable electronic devices utilizing LED indicators or displays
• Battery-powered applications needing efficient voltage boosting

Procurement Notes

Verify the specific suffix 'G4' indicates RoHS compliance and lead-free status as per Texas Instruments standards. Confirm the SON-8 package marking matches the physical component received. Ensure the supplier provides valid traceability documentation for automotive or industrial grade requirements if applicable. Cross-reference the datasheet revision to ensure compatibility with design specifications.

Selection Notes

Select this component when a single-output boost converter with integrated constant current control is required. It is suitable for designs where input voltage varies between 1.8 V and 6 V. Consider the 1 MHz switching frequency for balancing efficiency and external component size. Verify that the thermal performance of the SON-8 package meets the application's heat dissipation needs under maximum load conditions.

Part Context

The TPS61042 belongs to Texas Instruments' family of high-efficiency boost converters designed for portable applications. The DRBTG4 variant specifically denotes the SON-8 package with Green (RoHS) compliance. This part integrates the switch and control logic into a compact form factor, distinguishing it from discrete solutions or larger package variants within the same series.

Replacement Considerations

The TPS61042DRVTG4 is a documented alternative with similar boost functionality but differs in package type (WSON-6 vs SON-8) and output current rating (400 mA vs 500 mA). Verify pinout compatibility and thermal characteristics before substitution. Other members of the TPS6104x series may offer different current capabilities or packaging options.