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 Analog Input Amplifiers

 
Power to Bridge Tied Load (Max) (W)
Power to Parallel Bridge Tied Load (Max) (W)
Supported Bridge Tied Load (Min) (Ohms)
Closed/Open Loop
Speaker Outputs (Max) (#)
Special Features
Input Type
Power Stage Supply (Max) (V)
Rating
Operating Temperature Range (C)
Package Group
Package Size: mm2:W x L (PKG)
Approx. Price (US$)
TPA3131D2 TPA3130D2 TPA3136D2 TPA3140D2
7    15    10    15   
15    30    20    28   
2    6      4   
Closed    Closed    Closed    Closed   
2    2    2    2   
Power Limiter    Power Limiter    Inductor Free
Power Limiter   
Inductor Free
Thermal Fold Back
Non-Clipping AGL
Power Limiter   
Analog    Analog    Analog    Analog   
26    26    14.4    14.4   
Catalog    Catalog    Catalog    Catalog   
-40 to 85    -40 to 85    -40 to 85    -40 to 85   
VQFN    HTSSOP    HTSSOP    HTSSOP   
32VQFN: 25 mm2: 5 x 5(VQFN)    32HTSSOP: 89 mm2: 8.1 x 11(HTSSOP)    28HTSSOP: 62 mm2: 6.4 x 9.7(HTSSOP)    28HTSSOP: 62 mm2: 6.4 x 9.7(HTSSOP)   
0.90 | 1ku    1.05 | 1ku    1.05 | 1ku    1.30 | 1ku