TPA3128D2 - Texas Instruments

TPA3128D2 Class-D Amplifier

The TPA3128D2 and TPA3129D2 have low idle power loss and helps to extend the battery life of Bluetooth/Wireless speakers and other batterypowered 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 exter.

Features

•1 Supports Multiple Output Configurations
  – 2 × 30 W Into a 8-Ω BTL Load at 24 V (TPA3128D2)
  – 2 × 15 W Into a 8-Ω BTL Load at 15 V (TPA3129D2)
• Wide Voltage Range: 4.5 V to 26 V
• Efficient Class-D Operation
  – Very Low Idle Current: <23 mA for recommended LC filter configurations
  – Greater than 90% Power Efficiency Combined With Low Idle Loss Greatly Eliminates Need for Heat Sink
  – Adaptive Modulation Schemes based on Output Power
  – Smart Amplifier Drivers to Reduce the Requirement for RC Snubbers
• Multiple Switching Frequencies
  – AM Avoidance
  – Master and Slave Synchronization
  – 300-KHz t.