7W Filter-Free Class-D Stereo Amplifier In Space Saving QFN - TPA3131D2

TPA3131D2 (ACTIVE)

7W Filter-Free Class-D Stereo Amplifier In Space Saving QFN

Description

The TPA313xD2 are efficient, stereo digital amplifier power stages for driving speakers with up to 2×42W/4Ω peak power. TPA3131/32D2 operates heatsink-free with cooling to PCB through the bottom side PowerPAD with sustained output power from 2 × 4 W / 8 Ω (TPA3131D2) to 2 × 25 W / 8 Ω (TPA3132D2).

The TPA313xD2 advanced oscillator/PLL circuit employs a multiple switching frequency option to avoid AM interferences; this is achieved together with an option of Master and Slave synchronization, making it possible to synchronize multiple devices.

The TPA313xD2 are fully protected against faults with short-circuit protection and thermal protection as well as overvoltage, undervoltage, and DC protection. Faults are reported back to the processor to prevent devices from being damaged during overload conditions.

For feature compatible devices see: PowerPAD up device 2 × 50-W TPA3116D2, PowerPAD down 2 × 15-W TPA3130D2 and 2 × 30-W TPA3118D2.

Features

  • Supports Multiple Output Configurations
    • 2 × 4 W into a 8-Ω BTL Load at 7.4 V (TPA3131D2)
    • 2 × 25 W into a 8-Ω BTL Load at 19 V (TPA3132D2)
  • Wide Voltage Range: 4.5 V to 26 V
  • Automotive Load-Dump Compliant
  • Efficient Class-D Operation
    • >90% Power Efficiency Combined With Low Idle Loss
      for Heat Sink free Operation
    • Advanced Modulation Schemes
  • Multiple Switching Frequencies
    • AM Avoidance
    • Master and Slave Synchronization
    • Up to 1.2-MHz Switching Frequency
  • Feedback Power Stage Architecture With High PSRR Reduces
    PSU Requirements
  • Programmable Power Limit
  • Differential and Single-Ended Inputs
  • Stereo and Mono Mode With Single-Filter Mono Configuration
  • Single Power Supply Reduces Component Count
  • Integrated Self-Protection Circuits Including Overvoltage, Undervoltage,
    Overtemperature, DC-Detect, and Short Circuit With Error Reporting
  • Thermally Enhanced Package
    • 32-Pin VQFN Pad-Down
  • –40°C to 85°C Ambient Temperature Range

View more

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

 
Max. Power to Bridge Tied Load
Max. Power to Parallel Bridge Tied 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)
Rating
Operating Temperature Range (C)
Approx. Price (US$)
Architecture
TPA3131D2 TPA3110D2 TPA3116D2 TPA3118D2 TPA3130D2 TPA3132D2 TPA3140D2
7     15     50     30     15     25     15    
15     30     100     60     30       28    
2     4     3     4     6     2     4    
3     4     2     3     3       4    
Closed     Closed     Closed     Closed     Closed     Closed     Closed    
2     2     2     2     2     2     2    
Power Limiter     Power Limiter       Power Limiter     Power Limiter       Inductor Free
Thermal Fold Back
Non-Clipping AGL
Power Limiter    
Analog     Analog     Analog     Analog     Analog     Analog     Analog    
Hardware     Hardware     Hardware     Hardware     Hardware     Hardware     Hardware    
4.5     8       4.5     4.5       4.5    
26     26       26     26       14.4    
4.5     8     4.5     4.5     4.5     4.5     4.5    
26     26     26     26     26     26     14.4    
Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog    
-40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85    
1.10 | 1ku     0.85 | 1ku     1.80 | 1ku     1.65 | 1ku     1.30 | 1ku     1.20 | 1ku     1.30 | 1ku    
Class D     Class D     Class D     Class D     Class D     Class D     Class D    

Related products

Part # Name Product Family Comments
TPA6132A2   25-mW DirectPath™ Stereo Headphone Amplifier with Pop Suppression (TPA6132)   Low-Power Amplifier - HEADPHONE AMPLIFIER    25-mW DirectPath Stereo Headphone Amplifier with Pop Suppression  
TPA2011D1   3.2W mono class-d with auto-recovering short-circuit protection   Low-Power Amplifier - Speaker Amplifier Class AB/Class D    3.2W Mono Class-D Amplifier  
TLV320AIC3254   Very Low-Power Stereo Audio CODEC with programmable miniDSP   Audio Converters - Audio CODEC    Stereo Audio Codec with miniDSP  
TLV320AIC3262   Low Power Stereo Codec w/miniDSP, Stereo class-D Speakers, DirectPath Headphone   Audio Converters - Audio CODEC    Low Power Stereo Codec w/miniDSP, Stereo class-D Speakers, DirectPath Headphone  
Click Here
SupplyFrame