LM4951TL/NOPB

Audio Amplifiers Overview

The LM4951TL/NOPB is a wide voltage range, 1.8-watt mono audio power amplifier from Texas Instruments. It operates on a single supply voltage ranging from 3 V to 5 V and delivers 1.8 W of output power into an 8-ohm load. The device utilizes Class-AB topology for efficient audio reproduction. It is housed in a compact 9-pin WFBGA (DSBGA) package suitable for surface mount applications. The operational temperature range spans from -40°C to +85°C, ensuring reliability in portable electronic environments.

Audio Amplifiers Feature Summary

• Delivers 1.8 watts of output power into an 8-ohm load
• Operates on a single supply voltage ranging from 3 V to 5 V
• Utilizes Class-AB topology for audio amplification
• Designed for portable handheld devices with wide voltage tolerance

Audio Amplifiers Applications

• Portable handheld devices
• Multimedia audio systems
• Battery-powered consumer electronics

Audio Amplifiers Procurement Notes

Verify the component authenticity by checking the manufacturer marking against the official datasheet specifications. Ensure the package type matches the required 9-pin WFBGA configuration for your PCB layout. Confirm that the operating voltage requirements align with your system design before procurement. Cross-reference the part number suffix to ensure compliance with RoHS standards as indicated by the NOPB designation.

Audio Amplifiers Selection Notes

Select this amplifier when a high-power output is required within a limited voltage supply range typical of portable devices. The wide voltage range capability allows flexibility in battery-operated designs where supply voltage may vary. Consider the thermal performance and package size constraints when integrating into compact enclosures. Ensure the load impedance matches the 8-ohm specification for optimal power delivery and distortion characteristics.

Audio Amplifiers Part Context

This component belongs to the LM4951 series of audio amplifiers designed by Texas Instruments. It is specifically engineered for demanding applications in portable and handheld devices where space and power efficiency are critical. The series offers a balance between high output power and low quiescent current, making it suitable for multimedia applications requiring clear audio reproduction.

Audio Amplifiers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing designs by comparing pin configurations and electrical specifications carefully.