60W Stereo / 110W Peak PurePath™ Ultra-HD Analog-In, Pad-Down Class-D Amplifier - TPA3244

TPA3244 (ACTIVE)

60W Stereo / 110W Peak PurePath™ Ultra-HD Analog-In, Pad-Down Class-D Amplifier

 

Description

The TPA3244 device is a high performance Class-D power amplifier that enables true premium sound quality with Class-D efficiency. It features an advanced integrated feedback design and proprietary high-speed gate driver error correction (PurePath™ Ultra-HD). This technology allows ultra low distortion across the audio band and superior audio quality. With a 30-V power supply the device can drive up to 2 × 110 W peak into 4-Ω load and 2 × 60 W continuous into 8-Ω load and features a 2-VRMS analog input interface that works seamlessly with high performance DACs such as Burr-Brown PCM52xx DAC Family from TI (that is, PCM5242 / PCM5252). In addition to excellent audio performance, TPA3244 achieves both high power efficiency and very low power stage idle losses below 0.45 W. This is achieved through the use of 65 mΩ MOSFETs and an optimized gate driver scheme that achieves significantly lower idle losses than typical discrete implementations.

Features

  • Differential Analog Inputs
  • Total Output Power at 10%THD+N
    • 60-W Stereo Continuous into 8 Ω in BTL Configuration at 30 V
    • 110-W Stereo Peak into 4 Ω in BTL Configuration at 30 V
  • Total Output Power at 1%THD+N
    • 50-W Stereo Continuous into 8 Ω in BTL Configuration at 30 V
    • 90-W Stereo Peak into 4 Ω in BTL Configuration at 30 V
  • Advanced Integrated Feedback Design with High-speed Gate Driver Error Correction (PurePath™ Ultra-HD)
    • Signal Bandwidth up to 100 kHz for High Frequency Content From HD Sources
    • Ultra Low 0.005% THD+N at 1 W into 4 Ω and <0.01% THD+N to Clipping
    • 60 dB PSRR (BTL, No Input Signal)
    • <55 µV (A-Weighted) Output Noise
    • >110 dB (A Weighted) SNR
  • Multiple Configurations Possible:
    • Stereo, Mono, 2.1 and 4xSE
  • Click and Pop Free Startup and Stop
  • 94% Efficient Class-D Operation (8 Ω)
  • Wide 12-V to 30-V Supply Voltage Operation
  • Self-Protection Design (Including Undervoltage, Overtemperature, Clipping, and Short Circuit Protection) With Error Reporting
  • EMI Compliant When Used With Recommended System Design

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Parametrics Compare all products in Analog Input Class-D

 
Power to Bridge Tied Load (Max) (W)
Power to Parallel Bridge Tied Load (Max) (W)
THD + N @ 1 kHz (%)
SNR (dB)
Speaker Channels (Max)
Power Stage Supply (Max) (V)
Analog Supply (V) (Min)
Analog Supply (V) (Max)
Closed/Open Loop
Control Interface
Supported Bridge Tied Load (Min) (Ohms)
Supported Parallel Bridge Tied Load (Min) (Ohms)
Output Power (W)
Dynamic Range (dB)
Iq (Typ) (mA)
Power to Single-Ended Load (Max) (W)
TPA3244 TPA3245 TPA3250 TPA3251 TPA3255
100    150    130    220    325   
160    230    189    355    600   
0.005    0.005    0.005    0.005    0.006   
110    112    110    111    112   
4    4    4    4    4   
30    30    36    36    53.5   
10.8    10.8    10.8    10.8    10.8   
13.2    13.2    13.2    13.2    13.2   
Closed    Closed    Closed    Closed    Closed   
Hardware    Hardware    Hardware    Hardware    Hardware   
3    3    4    3    4   
2    2    3    2    2   
100    115    130    175    315   
111    113    112    115    113   
15    15    12.5    12.5    24   
39    55    42    84    130