TPA2005D1 Status: ACTIVE

Product Information

Features

• 1.4 W Into 8 From a 5 V Supply at
  THD = 10% (Typ)
• Maximum Battery Life and Minimum Heat
  • Efficiency With an 8- Speaker:
    • 84% at 400 mW
    • 79% at 100 mW
  • 2.8-mA Quiescent Current
  • 0.5-µA Shutdown Current
• Capable of Driving an
  8- Speaker (2.5 V ≤ V_DD ≤ 5.5 V) and a
  4- Speaker (2.5 V ≤ V_DD ≤ 4.2 V)
• 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 Package
  • 3 mm × 3 mm QFN package (DRB)
  • 2,5 mm × 2,5 mm MicroStar Junior™
    BGA Package (ZQY)
  • 3 mm x 5 mm MSOP PowerPAD™ Package (DGN)
  • TPA2010D1 Available in 1,45 mm × 1,45 mm WCSP (YZF)
• Use TPA2006D1 for 1.8 V Logic Compatibility on Shutdown Pin
• APPLICATIONS
  • Ideal for Wireless or Cellular Handsets and PDAs

MicroStar Junior, PowerPAD are trademarks of Texas Instruments.

Description

The TPA2005D1 is a 1.4-W high efficiency filter-free class-D audio power amplifier in a MicroStar Junior™ BGA, QFN, or MSOP 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 the TPA2005D1 ideal for cellular handsets. A fast start-up time of 9 ms with minimal pop makes the TPA2005D1 ideal for PDA applications.

In cellular handsets, the earpiece, speaker phone, and melody ringer can each be driven by the TPA2005D1. The device allows independent gain control by summing the signals from each function while minimizing noise to only 48 µV_RMS.

The TPA2005D1 has short-circuit and thermal protection.