TAS5612 125W Stereo / 250W Mono PurePath™ HD Digital-input Power Stage | TI.com

TAS5612 (NRND) 125W Stereo / 250W Mono PurePath™ HD Digital-input Power Stage


Not Recommended for New Designs (NRND)

Replaced By TAS5612A – The device has the SAME FUNCTIONALITY and PINOUT as the compared device but is NOT an exact equivalent.

TI does not recommend using this part in a new design. This product continues to be in production to support existing customers.


The TAS5612 is a high performance analog input Class D amplifier with integrated closed loop feedback technology (known as PurePath™ HD) with the ability to drive up to 125W.(1) Stereo into 4 to 8 Speakers from a single 32.5V supply.

PurePath™ HD technology enables traditional AB-Amplifier performance (<0.03% THD) levels while providing the power efficiency of traditional class D amplifiers.

Unlike traditional Class D amplifiers, the distortion curve only increases once the output levels move into clipping.

PurePath™ HD technology enables lower idle losses making the device even more efficient.


  • PurePath™ HD Enabled Integrated Feedback Provides:
    • Signal Bandwidth up to 80kHz for High Frequency Content From HD Sources
    • Ultralow 0.03% THD at 1W into 4
    • Ultralow 0.01% THD at 1W into 8
    • Flat THD at all Frequencies for Natural Sound
    • 80dB PSRR (BTL, No Input Signal)
    • >100dB (A weighted) SNR
    • Click and Pop Free Startup
  • Pin compatible with TAS5631, TAS5616 and TAS5614
  • Multiple Configurations Possible on the Same PCB With Stuffing Options:
    • Mono Parallel Bridge Tied Load (PBTL)
    • Stereo Bridge Tied Load (BTL)
    • 2.1 Single Ended Stereo Pair and Bridge Tied Load Subwoofer
  • Total Output Power at 10%THD+N
    • 250W in Mono PBTL Configuration
    • 125W per Channel in Stereo BTL Configuration
  • Total Output Power in BTL configuration at 1%THD+N
    • 130W Stereo into 3
    • 105W Stereo into 4
    • 70W Stereo into 6
    • 55W Stereo into 8
  • >90% Efficient Power Stage With 60-m Output MOSFETs
  • Self-Protection Design (Including Undervoltage, Overtemperature, Clipping,
    and Short-Circuit Protection) With Error Reporting
  • EMI Compliant When Used With Recommended System Design
  • Two Thermally Enhanced Package Options:
    • PHD (64-Pin QFP)
    • DKD (44-Pin PSOP3)
    • Home Theater Systems
    • AV Receivers
    • DVD/Blu-ray™ Disc Receivers
    • Mini Combo Systems
    • Active Speakers and Subwoofers

(1) Achievable output power levels are dependent on the thermal configuration of the target application. A high performance thermal interface material between the package exposed heatslug and the heat sink should be used to achieve high output power levels
PurePath, Power PAD are trademarks of Texas Instruments.
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