LM49250RL/NOPB

Audio Amplifiers Overview

The LM49250RL/NOPB is a D-class audio amplifier manufactured by Texas Instruments. It features a stereo output with a dedicated mono and stereo headphone driver, housed in a 36-DSBGA package measuring 3.5x3.24 mm. The device operates on a supply voltage ranging from 2.7V to 5.5V. Maximum power output is specified as 2.43W per channel into a 4-ohm load, or 170mW into a 32-ohm load for the headphone section. It supports I2C control and includes thermal and short-circuit protection.

Audio Amplifiers Feature Summary

• Integrates differential input capability for noise reduction in audio signal paths.
• Includes integrated DEPOP circuitry to minimize speaker pop noises during power transitions.
• Supports digital volume control via an I2C interface for system integration flexibility.

Audio Amplifiers Applications

• Portable multimedia devices requiring high-efficiency audio amplification
• Automotive infotainment systems utilizing microcomputer-controlled architectures
• Handheld communication equipment with limited power supply constraints

Audio Amplifiers Procurement Notes

Verify component authenticity through authorized distributors due to end-of-life status. Confirm package integrity upon receipt, as the small DS-BGA form factor requires careful handling. Ensure compatibility with existing PCB footprints and reflow profiles specific to this thermal pad design.

Audio Amplifiers Selection Notes

Select this component when designing systems requiring a compact solution for both speaker and headphone outputs. Consider the I2C interface requirements for volume management. Evaluate the 36-pin footprint against available board space constraints. Verify that the 2.7V minimum supply voltage aligns with the system's battery management strategy.

Audio Amplifiers Part Context

This part belongs to the Boomer and Powerwise series of audio amplifiers. It is designed for applications demanding high efficiency and low power consumption. The device integrates multiple protections to ensure reliability in portable and automotive environments where thermal management is critical.

Audio Amplifiers Replacement Considerations

The datasheet indicates End-of-Life (EOL) status as of June 3, 2020. No direct public substitute part numbers are confirmed in the provided documentation. Designers should evaluate alternative TI audio amplifiers with similar pinouts and specifications if sourcing new units.