TPS61042DRBR

Overview

The TPS61042DRBR is a constant current LED driver IC from Texas Instruments, featuring a boost converter topology. It supports an input voltage range of 1.8 V to 6 V and delivers up to 500 mA output current. The device operates at a switching frequency of 1 MHz and provides a maximum output voltage of 30 V. Packaged in an 8-SON format, it functions within a temperature range of -40°C to +85°C.

Feature Summary

• Integrated synchronous boost converter for efficient white LED driving
• Constant current regulation capability for precise LED control
• Supports PWM dimming for brightness adjustment

Applications

• White LED lighting applications
• Portable electronic device backlighting
• General LED illumination systems

Procurement Notes

Verify the specific suffix DRBR against the official Texas Instruments datasheet to confirm package type and tape/reel specifications. Ensure compatibility with the required operating temperature range and input voltage constraints before integration. Cross-reference the manufacturer part number with authorized distributors to validate authenticity and avoid counterfeit components.

Selection Notes

Select this component when a compact solution for driving white LEDs from a single-cell lithium battery or similar low-voltage source is required. The 1 MHz switching frequency allows for smaller external passive components compared to lower-frequency alternatives. Consider the 8-SON package size for space-constrained PCB layouts.

Part Context

This device belongs to the TPS61042 series of constant current LED drivers. It is designed specifically for applications requiring high efficiency and small form factors. The series utilizes a boost topology to step up the input voltage to drive LED strings.

Replacement Considerations

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