TPA3128D2 and TPA3129D2
have low idle power loss and helps
to extend the battery life of Bluetooth/Wireless speakers and other battery-powered audio systems.
The high efficiency of the TPA3128D2 device allows it to do 2 × 30 W without
external heat sink on a dual layer PCB. The high efficiency of the
TPA3129D2 device allows it to do 2 × 15 W without external heat sink on a dual
layer PCB. This device proposed an efficiency boost Mode, which can dynamically reduced the
current ripple of the external LC filter and the idle current .
The TPA31xxD2 advanced oscillator/PLL circuit employs a multiple
switching frequency option to avoid AM interferences, which is achieved together with an option of
either master or slave option, making it possible to synchronize multiple devices.
The TPA31xxD2 devices are fully protected against faults with
short-circuit protection and thermal protection as well as overvoltage, undervoltage, and DC
protection. Faults are reported back to the processor to prevent devices from being damaged during
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