TPA2005D1-Q1 - Automotive Catalog 1.4-W Mono Filter-Free Class-D Audio Power Amplifier

The TPA2005D1-Q1 device is a 1.4-W high-efficiency filter-free class-D audio power amplifier in a SON or MSOP-PowerPAD package that requires only three external components.

Features like 84% efficiency, –71-dB PSRR at 217 Hz, improved RF-rectification immunity, and 15-mm² total PCB area make TPA2005D1-Q1 ideal for low-power audio applications in infotainment and cluster.

The device allows for independent gain control by summing the signals from each function while minimizing noise to only 48 µV_RMS. Additionally, the TPA2005D1-Q1 device offers fast start-up time of 9 ms with minimal pop and has short circuit and thermal protection.

For all available packages, see the orderable addendum at the end of the data sheet.

• Qualified for Automotive Applications
• AEC-Q100 Qualified With the Following Results:
  • Device Temperature Grade 3 (DRB and DGN package non T-suffix): –40°C to +85°C Ambient Operating Temperature Range
  • Device Temperature Grade 2 (DGN package T-suffix): –40°C to +105°C Ambient Operating Temperature Range
  • Device HBM Classification Level 2
  • Device CDM Classification Level C5
• 1.4 W Into 8 Ω From a 5-V Supply at
  THD = 10% (Typical)
• Maximum Battery Life and Minimum Heat
  • Efficiency With an 8-Ω Speaker:
    • 84% at 400 mW
    • 79% at 100 mW
  • 2.8-mA Quiescent Current
  • 0.5-μA Shutdown Current
• Only Three External Components
  • Optimized PWM Output Stage Eliminates LC Output Filter
  • Internally Generated 250-kHz Switching Frequency Eliminates Capacitor and Resistor
  • Improved PSRR (–71 dB at 217 Hz) and Wide Supply Voltage (2.5 V to 5.5 V) Eliminates Need for a Voltage Regulator
  • Fully Differential Design Reduces RF Rectification and Eliminates Bypass Capacitor
  • Improved CMRR Eliminates Two Input Coupling Capacitors
• Space-Saving Packages
  • 3 mm × 3 mm SON package (DRB)
  • 3 mm × 5 mm MSOP-PowerPAD Package (DGN)

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