Analog input 300W Stereo class D amplifier with integrated feedback - TAS5630B


Analog input 300W Stereo class D amplifier with integrated feedback


The TAS5630B device is a high-performance analog-input class-D amplifier with integrated closed-loop feedback technology (known as PurePath HD technology) with the ability to drive up to 300 W Achievable output power levels are dependent on the thermal configuration of the target application. A high-performance thermal interface material between the exposed package heat slug and the heat sink should be used to achieve high output power levels. 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. When coupled with TI’s class-G power-supply reference design for TAS563x, industry-leading levels of efficiency can be achieved.


  • PurePath™ HD Enabled Integrated Feedback
    • 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 BTL
    • Quad Single-Ended Outputs
  • Total Output Power at 10% THD+N
    • 400 W in Mono PBTL Configuration
    • 300 W per Channel in Stereo BTL
    • 145 W per Channel in Quad Single-Ended
  • 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
    • Mini Combo System
    • AV Receivers
    • DVD Receivers
    • Active Speakers

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Parametrics Compare all products in Mid/High-Power Class D Amplifiers

Max. Power to Single-Ended Load
Max. Power to Bridge Tied Load
Max. Power to Parallel Bridge Tied Load
Min. Supported Single-Ended Load
Min. Supported Bridge Tied Load
Min. Supported Parallel Bridge Tied Load
Closed/Open Loop
Max Speaker Outputs (#)
Additional Features
Input Type
Control Type
Analog Supply Min [V]
Analog Supply Max [V]
Power Stage Supply Min (V)
Power Stage Supply Max (V)
Operating Temperature Range (C)
Approx. Price (US$)
TAS5630B TAS5613A
300     200    
400     300    
4     3    
2     2    
Closed     Closed    
4     4    
Analog     Analog    
Hardware     Hardware    
10.8     10.8    
13.2     13.2    
25     18    
52.5     38    
Catalog     Catalog    
0 to 70     0 to 70    
5.45 | 1ku     4.15 | 1ku    
Class D     Class D    

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