TPA2011D1 3.2W mono class-d with auto-recovering short-circuit protection | TI.com

TPA2011D1 (ACTIVE) 3.2W mono class-d with auto-recovering short-circuit protection

 

Description

The TPA2011D1 is a 3.2-W high efficiency filter-free class-D audio power amplifier (class-D amp) in a 1.21 mm × 1.16 mm wafer chip scale package (DSBGA) that requires only three external components.

Features like 95% efficiency, 86-dB PSRR, 1.5 mA quiescent current and improved RF immunity make the TPA2011D1 class-D amp ideal for cellular handsets. A fast start-up time of 4 ms with no audible turn-on pop makes the TPA2011D1 ideal for PDA and smart-phone applications. The TPA2011D1 allows independent gain while summing signals from separate sources, and has a low 20 µV noise floor.

Features

  • Powerful Mono Class-D Amplifier
    • 3.24 W (4 Ω, 5 V, 10% THDN)
    • 2.57 W (4 Ω, 5 V, 1% THDN)
    • 1.80 W (8 Ω, 5 V, 10% THDN)
    • 1.46 W (8 Ω, 5 V, 1% THDN)
  • Integrated Feedback Resistor of 300 kΩ
  • Integrated Image Reject Filter for DAC Noise
    Reduction
  • Low Output Noise of 20 µV
  • Low Quiescent Current of 1.5 mA
  • Auto Recovering Short-Circuit Protection
  • Thermal Overload Protection
  • 9-Ball, 1.21mm × 1.16 mm 0.4 mm Pitch DSBGA
  • APPLICATIONS
    • Wireless or Cellular Handsets and PDAs
    • Portable Navigation Devices
    • General Portable Audio Devices

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Parametrics

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Part number Order Audio input type Architecture Speaker channels (Max) Power stage supply (Min) (V) Power stage supply (Max) (V) Output power (W) Load (Min) (ohms) SNR (dB) THD + N @ 1 kHz (%) Iq (Typ) (mA) Control interface Closed/open loop Analog supply (Min) (V) Analog supply (Max) (V) PSRR (dB) Operating temperature range (C) Rating
TPA2011D1 Order now Analog Input     Class-D     Mono     2.5     5.5     3.2     4     95     0.23     1.8     Hardware     Open     2.5     5.5     86     -40 to 85     Catalog    
TPA2037D1 Order now Analog Input     Class-D     Mono     2.5     5.5     3.2     4     95     0.12     1.8     GPIO     Closed     2.5     5.5     86     -40 to 85     Catalog    
TPA2039D1 Order now Analog Input     Class-D     Mono     2.5     5.5     3.2     4     95     0.05     1.5     GPIO     Closed     2.5     5.5     86     -40 to 85     Catalog