TPA3126D2 - Texas Instruments

TPA3126D2 Class-D Audio Amplifier

The TPA3126D2 is a 50-W, stereo, low-idle-current Class-D amplifier in a thermally enhanced package. The TPA3126D2 includes TI's proprietary hybrid modulation scheme, which dynamically reduces idle current at low power levels to extend the battery life of portable audio systems, like bluetooth speakers. To further simply the design, the Class-D amplifier int.

Features

•1 Longer Battery-Operating Time:
  – Ultra-Low Idle Current: 15 mA at 12 V
• 2 × 50 W Into a 4-Ω Load at 21 V, 10% THD+N
• Wide Voltage Range: 4.5 V to 26 V
• Highly Efficient Class-D Operation
  – Hybrid Modulation Scheme Dynamically Reduces Power Loss
  – Low Rds(on) of 90-mΩ Enables > 90% Efficiency
• Pop-and-Click Noise Suppression
• Supports Stereo, Mono BTL and Mono PBTL
• Multiple Switching Frequencies:
  – AM Avoidance
  – Master and Slave Synchronization
  – 300-KHz to 1.2-MHz Switching Frequencies
• Selectable Gains: 20 dB, 26 dB, 32 dB, 36 dB
• Programmable Power Limit
• Supports Both Single a.