Texas Instruments TPA3156D2EVM

Overview

TPA3156D2EVM from Texas Instruments is an evaluation module designed to demonstrate the TPA3156D2 stereo Class-D power amplifier IC. It supports dual 70-W BTL outputs or 140-W PBTL mono mode, operates from 4.5 V to 26 V, drives 3.2–8 Ω loads, and includes configurable jumpers for stereo/single-channel/PBTL operation, PLIMIT control, and auto-recovery fault management.

For engineers reviewing the TPA3156D2EVM datasheet, TPA3156D2EVM pinout, TPA3156D2EVM application, or TPA3156D2EVM equivalent, this page provides verified hardware specifications, jumper-based configuration guidance, thermal and power supply interface details, and TI-validated test setup procedures for rapid audio power stage evaluation.

Technical Context

The TPA3156D2EVM implements the TPA3156D2 IC in a fully assembled, tested PCB layout with banana jacks for PVCC/GND, RCA inputs (LIN/RIN), and speaker terminals (OUTL±/OUTR±). It supports both single-supply (PVCC only) and split-supply (PVCC + AVCC) operation, with jumper-selectable grounding for differential/single-ended input modes and channel enable/disable.

Configuration is managed via 13 shunts (SH1–SH13), 5 headers (J3, J11–J14), and 2 tactile switches (S1/S2) to set output topology (BTL stereo, BTL single-channel, or PBTL mono), PLIMIT threshold (via R4 trimmer), shutdown/fault behavior (auto-recovery vs latch), and low-idle-loss mode (J11 = L).

Key Specifications

Availability

TPA3156D2EVM is available at Aetrix Electronics and suitable for audio system validation, Class-D amplifier reference design verification, and industrial sound reinforcement prototyping requiring stable component supply and TI-validated hardware.

Supply support for TPA3156D2EVM includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor company headquartered in Dallas, Texas, delivering analog and embedded processing solutions across industrial, automotive, and personal electronics markets.

The TPA3156D2EVM belongs to TI's audio evaluation module product line, engineered specifically to accelerate development of high-efficiency, high-power Class-D amplifier systems for professional audio, automotive infotainment, and smart speaker applications.

FAQ

What is the primary function of the TPA3156D2EVM?

The TPA3156D2EVM is an evaluation module that demonstrates the TPA3156D2 stereo Class-D power amplifier IC. It enables engineers to validate performance, configure output topologies (BTL stereo, BTL single-channel, or PBTL mono), test thermal behavior, and verify system-level integration-including input interface options, fault response, and power supply flexibility-before committing to custom PCB design. The TPA3156D2EVM includes all necessary passive components, heatsink, and jumper-based controls per the official TI user's guide SLOU499.

Does the TPA3156D2EVM support both single-ended and differential audio inputs?

Yes, the TPA3156D2EVM supports both single-ended and differential audio inputs via its RCA jacks (J6 and J9). Configuration is controlled by jumpers: JP2 and JP5 select single-ended input for the right and left channels respectively, while JP1/JP3 and JP4/JP6 configure channel grounding to enable differential operation. These settings are documented in Tables 3–5 of the TPA3156D2EVM User's Guide (SLOU499), ensuring signal integrity and proper common-mode rejection when used as intended.

How is output configuration (stereo vs. PBTL) selected on the TPA3156D2EVM?

Output configuration on the TPA3156D2EVM is selected entirely through jumper positioning. For stereo BTL, JP1/JP3 and JP4/JP6 are set to OUT (enabling both channels); for PBTL mono, JP4/JP6 are set to IN (disabling left channel) while JP1/JP3 remain OUT, routing both amplifier halves to a single load. Table 5 in the TPA3156D2EVM User's Guide explicitly defines these jumper states, and physical connections between left/right speaker terminals determine PBTL polarity and filter loading per the schematic.

What power supply requirements must be met to operate the TPA3156D2EVM safely?

The TPA3156D2EVM requires a regulated DC supply of 4.5 V to 26 V delivered via banana jacks J1 (PVCC) and J2 (GND), with minimum 24 AWG wire and up to 8 A current capability. Exceeding 26 V risks permanent damage. Separate AVCC is optional: if used, it must be ≤ PVCC (e.g., 12 V AVCC with 24 V PVCC) to reduce LDO dissipation. J3 jumper positions define single- vs. dual-supply mode, as specified in Section 2.8 of the TPA3156D2EVM User's Guide.

Can the TPA3156D2EVM be used for production deployment?

No, the TPA3156D2EVM is strictly an evaluation tool intended for R&D use only, per TI's Standard Terms for Evaluation Modules. It is not qualified for end-product integration, lacks production-level certifications (e.g., full EMC compliance out-of-box), and contains non-production-grade mechanical features (e.g., binding posts, exposed test points). TI explicitly prohibits assembly of the TPA3156D2EVM into finished goods. Production designs must use the TPA3156D2 IC on a custom board meeting safety, reliability, and regulatory requirements.