40-W Mono Class-D Audio Power Amplifier (TPA3106) - TPA3106D1


40-W Mono Class-D Audio Power Amplifier (TPA3106)


Next Generation 50-W, Stereo, Analog Input Class-D Audio Amplifier:  TPA3116D2


The TPA3106D1 is a 40-W efficient, Class-D audio power amplifier for driving bridged-tied stereo speakers. The TPA3106D1 can drive stereo speakers as low as 4. The high efficiency, ~92%, of the TPA3106D1 eliminates the need for an external heat sink when playing music.

The gain of the amplifier is controlled by two gain select pins. The gain selections are 20, 26, 32, 36 dB.

The outputs are fully protected against shorts to GND, VCC, and output-to-output shorts with an auto recovery feature and monitor output.


  • 40-W Into an 8- Load From a 25-V Supply
  • Operates From 10 V to 26 V
  • Efficient Class-D Operation Eliminates the Need for Heat Sinks
  • Four Selectable, Fixed Gain Settings
  • Differential Inputs
  • Thermal and Short-Circuit Protection With Auto Recovery Feature
  • Clock Output for Synchronization With Multiple Class-D Devices
  • Surface Mount 7×7, 32-pin HLQFP Package
    • Televisions
    • Powered Speakers

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Parametrics Compare all products in Analog Input Amplifiers

Speaker Channels (Max)
Power to Bridge Tied Load (Max) (W)
Supported Bridge Tied Load (Min) (Ohms)
Closed/Open Loop
Control Interface
Analog Supply (V) (Min)
Analog Supply (V) (Max)
Power Stage Supply (Max) (V)
Audio Input Type
Operating Temperature Range (C)
Package Group
Package Size: mm2:W x L (PKG)
TPA3106D1 TPA3116D2
1    2   
40    50   
4    3   
Closed    Closed   
Hardware    Hardware   
10    4.5   
26    26   
26    26   
Catalog    Catalog   
Analog    Analog   
-40 to 85    -40 to 85   
32HLQFP: 81 mm2: 9 x 9(HLQFP)    32HTSSOP: 68 mm2: 6.2 x 11(HTSSOP)   

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