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 Compare all products in Speaker amps

 
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 TAS5612LA TAS5614LA TAS5622A TAS5624A TAS5634
PWM     PWM     PWM     PWM     PWM     PWM    
Class-D     Class-D     Class-D     Class-D     Class-D     Class-D    
4     4     4     4     4     4    
25     12     12     12     12     12    
52.5     32.5     36     34     36     58    
300     125     150     125     150     300    
4     4     4     1.5     1.5     3    
103     105     105     105     105     105    
0.03     0.05     0.03     0.025     0.025     0.025    
24.8     22.3     22.3     23.4     23.4     29.5    
Hardware     Hardware     Hardware     Hardware     Hardware     Hardware    
Closed     Closed     Closed     Closed     Closed     Closed    
10.8     10.8     10.8     13.2     13.2     10.8    
13.2     13.2     13.2     10.8     10.8     13.2    
400     250     300     300     400     600    
80     80     80     65     65     70    
0 to 70     0 to 125     0 to 125     -40 to 125     0 to 70     0 to 70    
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