TPA3131D2EVM: 4W x 2 @ 8Ω, 4.5 ~ 26V in

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This evaluation module allows users to evaluate TI's TPA3131D2 audio amplifier. This user's guide contains an operations description, schematic, printed-circuit board (PCB) layout, and the bill of materials (BOM). The TPA3131D2EVM (EVM) customer evaluation module demonstrates the TPA3131D2 integrated circuit (IC) from Texas Instruments.

The TPA3131/32D2 are efficient, stereo digital amplifier power stages for driving speakers with up to 2x42W/4Ω peak power. TPA3131/32D2 operates heatsink-free with cooling to PCB through the bottom side PowerPAD™ with sustained output power from 2x4W/8Ω (TPA3131D2) to 2x25W/8Ω (TPA3132D2).

The TPA3131/32D2 advanced oscillator/PLL circuit employs a multiple switching frequency option to avoid AM interferences; this is achieved together with an option of Master/Slave option, making it possible to synchronize multiple devices.

The TPA3131/32D2 are fully protected against faults with short-circuit protection and thermal protection as well as over-voltage, under-voltage and DC protection. Faults are reported back to the processor to prevent devices from being damaged during overload conditions.

Manufacturer Texas Instruments
Category Audio Amplifiers
Sub-Category Audio Amplifiers
Eval Board Part Number 296-37092-ND
Eval Board Supplier Texas Instruments
Eval Board
Normally In Stock
Amplifier Type
Class D
Voltage In
4.5 ~ 26 V
Output Power (RMS) @ Load
4 W x 2 @ 8 Ω
Number of Outputs
Stereo
THD+N (1kHz) @ Conditions
< 0.1% @ 0.1 ~12.5 W (8 Ω, 7.4 ~ 24 V)
Features
Fault Indication
Mute
Over Voltage Protection
Short Circuit Protection
Synchronizable
Thermal Protection
Under Voltage Protection, Brown-Out
Efficiency @ Conditions
>85%, 2.5 ~ 15 W @ 4 Ω (7.4 V)
>90%, 3.8 ~ 8W @ 8 Ω (7.4 V)
Component Count + Extras
54 + 54
Design Author
Texas Instruments
Application / Target Market
Computers
Hi Fi Audio
Home Theater
LCD TV / Monitor
Portable Devices
Powered Speakers
Standby Current [Maximum]
- Not Given
Standby Current [Typical]
50 µA
Quiescent Current [Maximum]
- Not Given
Quiescent Current [Typical]
16 mA
Main I.C.
TPA3131D2