2W Class-D Audio Amplifier With Adaptive Boost and Battery Tracking SpeakerGuard AGC - TPA2015D1

TPA2015D1 (ACTIVE)

2W Class-D Audio Amplifier With Adaptive Boost and Battery Tracking SpeakerGuard AGC

 

Description

The TPA2015D1 is a high efficiency Class-D audio power amplifier with battery-tracking SpeakerGuard AGC technology and an integrated adaptive boost converter that enhances efficiency at low output power. It drives up to 2 W into an 8 Ω speaker (6% THD). With 85% typical efficiency, the TPA2015D1 helps extend battery life when playing audio.

The built-in boost converter generates a 5.5 V supply voltage for the Class-D amplifier. This provides a louder audio output than a stand-alone amplifier directly connected to the battery. The SpeakerGuardTM AGC adjusts the Class-D gain to limit battery current and prevent heavy clipping.

The TPA2015D1 has an integrated low-pass filter to improve the RF rejection and reduce DAC out-of-band noise, increasing the signal to noise ratio (SNR).

The TPA2015D1 is available in a space saving 1.954 mm × 1.954 mm, 0.5 mm pitch DSBGA package (YZH).

Features

  • Built-In SpeakerGuardTM Automatic Gain Control (AGC) with Enhanced Battery Tracking
    • Limits Battery Current Consumption
    • Prevents Audio Clipping
  • 2 W into 8 Ω Load From 3.6 V Supply (6% THD)
  • Integrated Adaptive Boost Converter
    • Increases Efficiency at Low Quiescent Current of 1.7 mA from 3.6 V
  • Operates From 2.5 V to 5.2 V
  • Thermal and Short-Circuit Protection with Auto Recovery
  • Three Gain Settings: 6 dB, 15.5 dB, and 20 dB
  • Independent Control for Boost and Class-D
  • Pin-to-Pin Compatible with TPA2013D1
  • Available in 1.954 mm × 1.954 mm 16-ball DSBGA Package

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  • APPLICATIONS
    • Cell Phones, PDA, GPS
    • Portable Electronics and Speakers
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    Parametrics Compare all products in Speaker Amplifier Class AB/Class D

     
    Analog Supply (V) (Min)
    Analog Supply (V) (Max)
    Architecture
    Speaker Channels (Max)
    Audio Input Type
    Output Power (W)
    Load (Min) (ohms)
    Iq (Typ) (mA)
    Iq (Max) (mA)
    THD + N @ 1 kHz (%)
    PSRR (dB)
    Iq per channel (Typ) (mA)
    Pin/Package
    Package Size: mm2:W x L (PKG)
    Operating Temperature Range (C)
    Control Interface
    Shutdown Current (ISD) (uA)
    Rating
    TPA2015D1 TAS2557 TAS2559 TAS2560 TAS2770
    2.3    2.9    2.9    2.9    4.5   
    5.2    5.5    5.5    5.5    16   
    Class D Boosted    Class D Boosted
    Smart Amp   
    Class D Boosted
    Smart Amp   
    Class D Boosted
    Smart Amp   
    Class-D Smart Amp   
    Mono    Mono    Mono    Mono    Mono   
    Analog Input    Digital Input    Digital Input    Digital Input    Digital Input   
    2    5.7    5.7    5.6    20   
    8    4    4    4    4   
    1.7    3.9    3.9    3.2     
    2.2    6.7    6.7    10.6     
    0.07    0.0035    0.0035    0.004     
    85    110    110    110    90   
    1.7    3.9    3.9    3.2     
    16DSBGA        30DSBGA    26VQFN-HR   
    See datasheet (DSBGA)        See datasheet (DSBGA)    26VQFN-HR: 14 mm2: 3.5 x 4(VQFN-HR)   
    -40 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 85   
    GPIO    I2C
    SPI   
    I2C
    SPI   
    I2C    I2C   
    0.2    2    1    0.1     
    Catalog    Catalog    Catalog    Catalog    Catalog   

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