The TPA3138D2 is a 10-W/ch, high-efficiency, low-idle-current Class-D stereo audio
amplifier. It can drive stereo speakers with a load as low as 3.2-Ω. In the 1SPW mode, it consumes
a low idle current of only 21-mA (12-V) and can operate down to 3.5-V, allowing for longer audio
play and improved thermal performance in bluetooth speakers, battery-powered appliances and other
Advanced EMI Suppression with Spread Spectrum Control enables the use of inexpensive
ferrite bead filters while meeting EMC requirements for system cost reduction.
To further simplify the design, the TPA3138D2 integrates essential protection features
including undervoltage, overvoltage, power limit, short circuit, overtemperature, as well as DC
speaker protection. All of these protections come with automatic recovery.
Customers can leverage every TPA3138D2 feature in existing designs as it is fully
pin-to-pin compatible to TIs TPA3110D2, TPA3136D2 and TPA3136AD2.