150-W stereo, 300-W mono, 12- to 38-V, PWM input Class-D audio amplifier w/ thermal enhancement


Product details


Audio input type PWM Architecture Class-D Speaker channels (Max) 4 Power stage supply (Max) (V) 36 Power stage supply (Min) (V) 12 Load (Min) (ohms) 4 Output power (W) 150 SNR (dB) 105 THD + N @ 1 kHz (%) 0.03 Iq (Typ) (mA) 22.3 Control interface Hardware Closed/open loop Closed Analog supply (Min) (V) 10.8 Analog supply (Max) (V) 13.2 PSRR (dB) 80 Operating temperature range (C) 0 to 125 open-in-new Find other Speaker amps

Package | Pins | Size

HTSSOP (DDV) 44 113 mm² 14 x 8.1 open-in-new Find other Speaker amps


  • PurePath™ HD Integrated Feedback Provides:
    • 0.03% THD at 1 W into 4 Ω
    • > 65 dB PSRR (No Input Signal)
    • > 105 dB (A-weighted) SNR
  • Preclipping Output for Control of a Class-G Power
  • Reduced Heat Sink Size due to use of 60-mΩ
    Output MOSFET With > 90% Efficiency at Full
    Output Power
  • Output Power at 10%THD+N
    • 150-W and 4-Ω BTL Stereo Configuration
    • 300-W and 2-Ω in PBTL Mono Configuration
  • Output Power at 1%THD+N
    • 125-W and 4-Ω BTL Stereo Configuration
    • 65-W and 8-Ω BTL Stereo Configuration
  • Click- and Pop-Free Start-up
  • Error Reporting Self-Protected Design With UVP,
    Overtemperature, and Short-Circuit Protection
  • EMI Compliant When Used With Recommended
    System Design
  • 44-Pin HTSSOP (DDV) Package for Reduced
    Board Size
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The TAS5614LA device is a feature optimized class-D power amplifier based on the TAS5614LA.

The TAS5614LA uses large MOSFETs for improved power efficiency and a novel gate drive scheme for reduced losses in idle and at low output signals leading to reduced heat sink size.

The unique preclipping output signal can be used to control a class-G power supply. This combined with the low idle loss and high power efficiency of the TAS5614LA leads to industry-leading levels of efficiency ensuring a super "green" system.

The TAS5614LA uses constant voltage gain. The internally matched gain resistors ensure a high Power Supply Rejection Ratio giving an output voltage only dependent on the audio input voltage and free from any power supply artifacts.

The high integration of the TAS5614LA makes the amplifier easy to use; and, using TI’s reference schematics and PCB layouts leads to fast design in time. The TAS5614LA is available in the space-saving, surface-mount, 44-pin HTSSOP package.

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Next Generation High Performance, High Resolution Class-D Amplifier (Analog-In) Available

True Ultra-HD sound quality with a low THD+N <0.005% and a bandwidth of up to 100kHz for output levels up to 175W Stereo / 350W Mono: TPA3251

Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 5
Type Title Date
* Datasheet TAS5614LA 150-W Stereo and 300-W Mono PurePath™ HD Digital-Input Class-D Power Stage datasheet (Rev. A) Mar. 16, 2015
Application note Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) Aug. 26, 2019
Application note AN-1849 An Audio Amplifier Power Supply Design (Rev. C) Jun. 27, 2019
User guide TAS5612L-TAS5614LDDEVM (Rev. C) Dec. 09, 2015
Application note AN-1737 Managing EMI in Class D Audio Applications (Rev. A) May 01, 2013

Design & development

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HTSSOP (DDV) 44 View options

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