TPA2005D1DRBR

Product Summary

The TPA2005D1DRBR 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 mm 2 total PCB area make the TPA2005D1DRBR ideal for cellular handsets. A fast start-up time of 9 ms with minimal pop makes the TPA2005D1DRBR ideal for PDA applications. In cellular handsets, the earpiece, speaker phone, and melody ringer can each be driven by the TPA2005D1DRBR. The device allows independent gain control by summing the signals from each function while minimizing noise to only 48 μV RMS . The TPA2005D1DRBR is ideal for Wireless or Cellular Handsets and PDAs.

Parametrics

TPA2005D1DRBR absolute maximum ratings: (1)VDD, Supply voltage: In active mode: -0.3 V to 6 V; In SHUTDOWN mode: -0.3 V to 7 V; (2)VI, Input voltage: -0.3 V to VDD + 0.3 V; (3)TA, Operating free-air temperature: -40 to 85℃; (4)TJ, Operating junction temperature: -40 to 150℃; (5)Tstg, Storage temperature: -65 to 85℃; (6)Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds: 260℃.

Features

TPA2005D1DRBR features: (1)1.4 W Into 8 Ω From a 5 V Supply at THD = 10% (Typ); (2)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- μ A Shutdown Current; (3)Only Three External Components; (4)Optimized PWM Output Stage Eliminates LC Output Filter; (5)Internally Generated 250-kHz Switching Frequency Eliminates Capacitor and Resistor; (6)Improved PSRR (-71 dB at 217 Hz) and Wide Supply Voltage (2.5 V to 5.5 V) Eliminates Need for a Voltage Regulator; (7)Fully Differential Design Reduces RF Rectification and Eliminates Bypass Capacitor; (8) Improved CMRR Eliminates Two Input Coupling Capacitors; (9)Space Saving Package: 3 mm × 3 mm QFN package (DRB); 2,5 mm × 2,5 mm MicroStar Junior BGA Package (ZQY); 3 mm × 5 mm MSOP PowerPAD Package (DGN); TPA2010D1 Available in 1,45 mm x 1,45 mm WCSP (YZF).

Diagrams