TAS5614LA 150W Stereo/300W Mono HD Digital-Input Power Stage | TI.com

TAS5614LA
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150W Stereo/300W Mono HD Digital-Input Power Stage

 

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

Description

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.

Features

  • 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
    Supply
  • 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

Parametrics

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Part number Order Audio input type Architecture Speaker channels (Max) Power stage supply (Min) (V) Power stage supply (Max) (V) Output power (W) Load (Min) (ohms) SNR (dB) THD + N @ 1 kHz (%) Iq (Typ) (mA) Control interface Closed/open loop Analog supply (Min) (V) Analog supply (Max) (V) Power to parallel bridge tied load (Max) (W) PSRR (dB) Operating temperature range (C) Rating
TAS5614LA Order now PWM     Class-D     4     12     36     150     4     105     0.03     22.3     Hardware     Closed     10.8     13.2     300     80     0 to 125     Catalog    
TAS5612LA Order now PWM     Class-D     4     12     32.5     125     4     105     0.05     22.3     Hardware     Closed     10.8     13.2     250     80     0 to 125     Catalog    
TAS5622A Order now PWM     Class-D     4     12     34     125     1.5     105     0.025     23.4     Hardware     Closed     13.2     10.8     300     65     -40 to 125     Catalog    
TAS5624A Order now PWM     Class-D     4     12     36     150     1.5     105     0.025     23.4     Hardware     Closed     13.2     10.8     400     65     0 to 70     Catalog    
TAS5631B Order now PWM     Class-D     4     25     52.5     300