TPS61181ARTER

Overview

The TPS61181ARTER is a six-channel white LED driver IC designed for notebook LCD backlighting. It operates with an input voltage range of 4.5V to 24V and delivers up to 30mA per channel. The device features a maximum output voltage of 38V and integrates a 1.5A/40V MOSFET. Switching frequency is fixed at 1MHz, supporting PWM dimming control. It is housed in a 16-WQFN (3x3) package and functions within a temperature range of -40°C to 85°C.

Feature Summary

• Integrates a high-current MOSFET for efficient power conversion
• Supports precise current regulation across multiple LED strings
• Enables digital brightness control via PWM dimming interface

Applications

• Notebook LCD display backlighting
• Portable GPS navigation devices
• Industrial equipment displays
• Medical instrument panels

Procurement Notes

Verify the specific suffix ARTER against the manufacturer datasheet to confirm pinout compatibility and thermal characteristics. Ensure the component meets RoHS3 standards if required by your assembly process. Cross-reference the 16-WQFN footprint dimensions during PCB layout finalization to guarantee proper solder joint integrity and heat dissipation performance.

Selection Notes

Select this component when designing medium-sized portable displays requiring six independent LED channels. It is suitable for systems needing a wide input voltage range up to 24V. Consider the integrated MOSFET capability for simplified bill of materials. Evaluate the 1MHz switching frequency against electromagnetic interference requirements for the target enclosure design.

Part Context

This part belongs to the TPS61181 family of WLED drivers developed by Texas Instruments. It serves as a direct replacement for older CCFL-based backlight solutions in portable electronics. The series provides a compact alternative for engineers transitioning from fluorescent lamps to white LEDs while maintaining high power efficiency and accurate current regulation for thin panel designs.

Replacement Considerations

Check the TPS61181ARTET variant for identical electrical specifications. Verify that any substitute maintains the same 16-WQFN package outline and thermal pad configuration to ensure mechanical fit.