LM4905LD/NOPB

Audio Amplifiers Overview

The LM4905LD/NOPB is a Class AB mono audio amplifier IC manufactured by Texas Instruments. It delivers 1.07W of output power and operates within a maximum supply voltage of 5.5V. The device features a total harmonic distortion plus noise (THD+N) of 0.2%. It is housed in an 8-WSON package with dimensions of 3x3 mm, designed for low-power applications requiring small form factors.

Audio Amplifiers Feature Summary

• Class AB mono audio amplification architecture
• Integrated thermal protection circuitry
• Hardware shutdown capability for power management

Audio Amplifiers Applications

• Low-voltage portable audio devices
• Small form factor consumer electronics
• Battery-powered audio systems

Audio Amplifiers Procurement Notes

Verify the component status as obsolete before procurement planning. Confirm that the 8-WSON package dimensions match the design footprint. Ensure compatibility with the 5.5V maximum supply voltage constraint. Validate that the 1.07W output power meets system requirements. Check for available substitute parts if new production is required.

Audio Amplifiers Selection Notes

Select this component for designs prioritizing minimal board space due to the compact 8-WSON package. Consider the Class AB topology for balanced audio quality and efficiency. Evaluate the 5.5V supply limit against the system's power budget. Assess the need for external shutdown control signals. Verify thermal performance under expected load conditions.

Audio Amplifiers Part Context

This part belongs to the Boomer series of audio amplifiers from Texas Instruments. It is designed for applications where size and power consumption are critical constraints. The device integrates essential protection features to ensure reliability in portable environments.

Audio Amplifiers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult official manufacturer resources for current equivalent components.