TPA3118 - Texas Instruments

TPA3118 Filter-Free Class-D Stereo Amplifier

The TPA31xxD2 series are stereo efficient, digital amplifier power stage for driving speakers up to 100 W / 2 Ω in mono. The high efficiency of the TPA3130D2 allows it to do 2 × 15 W without external heat sink on a single layer PCB. The TPA3118D2 can even run 2 × 30 W / 8 Ω without heat sink on a dual layer PCB. If even higher power is needed the TPA3116D2 d.

Features

•1 Supports Multiple Output Configurations
  – 2 × 50 W Into a 4-Ω BTL Load at 21 V (TPA3116D2)
  – 2 × 30 W Into a 8-Ω BTL Load at 24 V (TPA3118D2)
  – 2 × 15 W Into a 8-Ω BTL Load at 15 V (TPA3130D2)
• Wide Voltage Range: 4.5 V to 26 V
• Efficient Class-D Operation
  – >90% Power Efficiency Combined With Low Idle Loss Greatly Reduces Heat Sink Size
  – Advanced Modulation Schemes
• Multiple Switching Frequencies
  – AM Avoidance
  – Master and Slave Synchronization
  – Up to 1.2-MHz Switching Frequency
• Feedback Power-Stage Architecture With High PSRR Reduces PSU Requirements
• Programmable Power Limit
• D.