TAS5631B PWM input 300W Stereo class D amplifier with integrated feedback | TI.com

TAS5631B (ACTIVE)

PWM input 300W Stereo class D amplifier with integrated feedback

 

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 315W Stereo / 600W Mono: TPA3255

Description

The TAS5631B is a high-performance PWM input class-D amplifier with integrated closed-loop feedback technology (known as PurePath HD technology) with the ability to drive up to 300 W (1) stereo into 4-Ω to 8-Ω speakers from a single 50-V 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 does not increase until the output levels move into clipping.

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

Features

  • PurePath™ HD Enabled Integrated Feedback Provides:
    • Signal Bandwidth up to 80 kHz for High-Frequency Content From HD Sources
    • Ultralow 0.03% THD at 1 W Into 4 Ω
    • Flat THD at All Frequencies for Natural Sound
    • 80-dB PSRR (BTL, No Input Signal)
    • >100-dB (A-weighted) SNR
    • Click- and Pop-Free Start-Up
  • 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
    • Quad Single-Ended Outputs
  • Total Output Power at 10% THD+N
    • 400 W per Channel in Mono PBTL Configuration
    • 300 W per Channel in Stereo BTL Configuration
    • 145 W per Channel in Quad Single-Ended Configuration
  • High-Efficiency Power Stage (>88%) With 60-mΩ Output MOSFETs
  • Two Thermally Enhanced Package Options:
    • PHD (64-Pin QFP)
    • DKD (44-Pin PSOP3)
  • Self-Protection Design (Including Undervoltage, Overtemperature, Clipping,
    and Short-Circuit Protection) With Error Reporting
  • EMI Compliant When Used With Recommended System Design
  • APPLICATIONS
    • Mini Combo System
    • AV Receivers
    • DVD Receivers
    • Active Speakers

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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
TAS5631B Order now PWM     Class-D     4     25     52.5     300     4     103     0.03     24.8     Hardware     Closed     10.8     13.2     400     80     0 to 70     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    
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    
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