TPA4411MRTJRG4

Audio Amplifiers Overview

The TPA4411MRTJRG4 is a stereo headphone amplifier from Texas Instruments, part of the DirectPath series. It operates on a single supply voltage ranging from 1.8 V to 4.5 V and delivers 80 mW of output power into a 16-ohm load. The device features Class-AB topology with differential output and accepts single-ended inputs. Key electrical specifications include a gain of 63.52 dB, total harmonic distortion plus noise of 0.054%, and an operating quiescent current of 8 mA. It functions within a temperature range of -40°C to +85°C and is housed in a 20-WFQFN package.

Audio Amplifiers Feature Summary

• Cap-free design eliminates the need for large output coupling capacitors
• Integrated pop-and-click suppression circuitry prevents audible transients during power-up and shutdown
• Includes comprehensive protection mechanisms such as thermal shutdown and short-circuit protection

Audio Amplifiers Applications

• Portable audio devices requiring low-power stereo amplification
• Mobile phones and smartphones with integrated headphone drivers
• Digital media players and MP3 players
• Tablets and handheld gaming consoles

Audio Amplifiers Procurement Notes

Verify the suffix 'G4' indicates lead-free composition and RoHS compliance per manufacturer standards. Confirm the 20-QFN package dimensions match the PCB footprint. Ensure the single-supply voltage requirements align with the system's power rail capabilities. Check moisture sensitivity level handling procedures during assembly.

Audio Amplifiers Selection Notes

Select this component when a compact, cap-free stereo solution is required for battery-powered applications. The DirectPath architecture simplifies board layout by removing external output capacitors. Consider the 8 mA quiescent current for strict power budget constraints. Verify that the 1.8 V minimum supply voltage meets the lowest expected battery state.

Audio Amplifiers Part Context

This part belongs to the TPA4411 family of audio amplifiers designed specifically for portable electronics. It serves as a direct-drive headphone amplifier, integrating all necessary control functions into a small form factor. The family emphasizes high efficiency and minimal external component count to support modern slim device designs.

Audio Amplifiers Replacement Considerations

The TPA4411MRTJR is the non-RoHS compliant equivalent. Other members of the TPA4411 family may offer different packaging or pin configurations but share similar core functionality.