A good PCB layout for the TPA6138A2PWR involves keeping the input and output traces short and away from each other, using a solid ground plane, and placing decoupling capacitors close to the device. TI provides a recommended layout in the datasheet and application notes.
The gain setting depends on the input signal level and the desired output power. The TPA6138A2PWR has a fixed gain of 20dB, but you can adjust the gain using external resistors. Use the gain calculation formula in the datasheet to determine the correct resistor values for your application.
The maximum power dissipation of the TPA6138A2PWR is 2.5W. However, this value can be affected by the ambient temperature, PCB layout, and thermal design. Make sure to follow the thermal design guidelines in the datasheet to ensure reliable operation.
No, the TPA6138A2PWR is not designed for bridged operation. It is a stereo audio amplifier, and bridging would require a different amplifier configuration. If you need a bridged amplifier, consider using a different device, such as the TPA3116D2.
Use a combination of passive and active filtering techniques to minimize noise and EMI in your audio circuit. Add capacitors and resistors to filter out high-frequency noise, and consider using a common-mode filter or a ferrite bead to reduce EMI.
Trust Checks
This model has been verified by system checks.
System Verified
Sponsored
TPA6138A2PWR Overview
Use the download button to access the TPA6138A2PWR schematic symbol, PCB footprint, and 3D model.
To find more CAD model downloads similar to this part, try a partial part number search, like TPA61,
or try a keyword search, such as Audio/Video Amplifiers
About Texas Instruments
Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.
