TL4242DRJR

Overview

The TL4242DRJR is a single-output LED lighting driver IC from Texas Instruments, housed in an 8-pin WSON package. It supports both boost and buck topologies with an adjustable output current capability of 500 mA. The device operates within a supply voltage range of 4.5 V to 42 V and delivers up to 16 V output. It functions at a switching frequency of 10 kHz and is rated for operation between -40°C and +125°C.

Feature Summary

• Supports flexible boost and buck converter topologies for high-power LED applications
• Integrated adjustable current control for precise LED regulation
• Wide input voltage range accommodates various power supply configurations

Applications

• High-power LED lighting systems
• LED backlighting drivers
• General-purpose LED illumination circuits

Procurement Notes

Verify the complete part number including the suffix DRJR to ensure correct packaging and tape-and-reel specifications. Confirm RoHS compliance status through official Texas Instruments documentation prior to integration. Ensure the selected variant matches the required thermal performance and pinout configuration for the target PCB layout.

Selection Notes

Select this component when designing LED drivers requiring both buck and boost capabilities within a compact WSON-8 footprint. Consider the 500 mA output limit and 42 V maximum input voltage when sizing external components. Evaluate thermal management requirements given the operating temperature range up to 125°C.

Part Context

This part belongs to the TL4242 series of LED lighting driver ICs manufactured by Texas Instruments. The series is designed specifically for driving high-power LEDs with efficient power conversion. The DRJR suffix indicates the specific reel packaging format used for surface-mount assembly processes.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.