LM4668LD/NOPB

Audio Amplifiers Overview

The LM4668LD/NOPB is a high-efficiency mono BTL audio power amplifier manufactured by Texas Instruments. It delivers 10W of output power into an 8-ohm load with a 5V supply. The device operates on a single voltage rail ranging from 5V to 26V. It utilizes a Class-AB topology and features differential input configuration. The component is housed in a PowerPAD SOIC-16 package and supports operation across a temperature range of -40°C to +85°C.

Audio Amplifiers Feature Summary

• Delivers high-output power for mono applications using a bridge-tied-load (BTL) architecture.
• Operates efficiently on a wide single-supply voltage range up to 26V.
• Integrates differential inputs to simplify system design and reduce noise susceptibility.

Audio Amplifiers Applications

• High-power portable audio systems
• Desktop multimedia speakers
• Home theater subwoofers

Audio Amplifiers Procurement Notes

Verify the specific suffix LD against official Texas Instruments documentation to confirm pinout and thermal pad specifications. Ensure the selected package variant matches the PCB footprint requirements. Confirm RoHS compliance status through the manufacturer's current datasheet before finalizing procurement plans.

Audio Amplifiers Selection Notes

Select this component for designs requiring significant mono channel power from a single supply rail. Evaluate the thermal performance capabilities of the PowerPAD package relative to the expected ambient conditions. Compare efficiency metrics against alternative topologies to ensure optimal battery life or power consumption targets are met.

Audio Amplifiers Part Context

This part belongs to the LM466x series of audio amplifiers, which focuses on high-efficiency solutions for consumer electronics. The series includes various configurations tailored for different power levels and channel arrangements. The LM4668 specifically targets applications needing robust mono output without complex multi-supply requirements.

Audio Amplifiers Replacement Considerations

Consult the Texas Instruments product selection guide for direct replacements within the LM466x family. Verify that any substitute component maintains compatibility with the existing 26V maximum supply voltage and BTL configuration requirements.