Code example or demo
TPA3255
315-W stereo, 600-W mono, 18- to 53.5-V supply, analog input Class-D audio amplifier
Data sheet
TPA3255
- Differential Analog Inputs
- Total Output Power at 10%THD+N
- 315-W Stereo into 4 Ω in BTL Configuration
- 185-W Stereo into 8 Ω in BTL Configuration
- 600-W Mono into 2 Ω in PBTL Configuration
- Total Output Power at 1%THD+N
- 260-W Stereo into 4 Ω in BTL Configuration
- 150-W Stereo into 8 Ω in BTL Configuration
- 480-W Mono into 2 Ω in PBTL Configuration
- Advanced Integrated Feedback Design with High-speed Gate Driver Error Correction
(PurePath™ Ultra-HD)- Signal Bandwidth up to 100 kHz for High Frequency Content From HD Sources
- Ultra Low 0.006% THD+N at 1 W into 4 Ω and <0.01% THD+N to Clipping
- >65 dB PSRR (BTL, 1 kHz, No Input Signal)
- <85 µV (A-Weighted) Output Noise
- >111 dB (A Weighted) SNR
- Multiple Configurations Possible:
- Stereo, Mono, 2.1 and 4xSE
- Click and Pop Free Startup and Stop
- 90% Efficient Class-D Operation (4 Ω)
- Wide 18-V to 53.5V Supply Voltage Operation
- Self-Protection Design (Including Undervoltage, Overtemperature, Clipping, and Short Circuit Protection) With Error Reporting
- EMI Compliant When Used With Recommended System Design
TPA3255 is a high performance class-D power amplifier that enables true premium sound quality with class-D efficiency. It features an advanced integrated feedback design and proprietary high-speed gate driver error correction (PurePath™ Ultra-HD). This technology allows ultra low distortion across the audio band and superior audio quality. The device is operated in AD-mode, and can drive up to 2 x 315 W into 4-Ω load at 10% THD and 2 x 150 W unclipped into 8-Ω load and features a 2 VRMS analog input interface that works seamlessly with high performance DACs such as TI’s PCM5242. In addition to excellent audio performance, TPA3255 achieves both high power efficiency and very low power stage idle losses below 2.5W. This is achieved through the use of 85 mΩ MOSFETs and an optimized gate driver scheme that achieves significantly lower idle losses than typical discrete implementations.
Technical documentation
No results found. Please clear your search and try again.
View all 14 Design & development
For additional terms or required resources, click any title below to view the detail page where available.
Evaluation board
SIDEGIG-GUITAREVM — Guitar SideGig Plug-In Module
The TI Guitar SideGig plug-in module turns TI Audio Class-D amplifier EVM’s into a guitar, bass or musical instrument amplifier. The board features selectable “clean” and “drive” channels for traditional and overdriven guitar sounds. The clean channel offers volume, (...)
User guide: PDF
Evaluation board
SIDEGIG-PROTOEVM — Prototype Audio Plug-in Module
The TI Prototype Audio Plug-in Module turns TI Audio Class-D amplifier EVM’s into your sandbox. Need to prototype a pre-amplifier circuit or test an opamp with TI Class-D EVMs, then start with the DIY Audio Plug-in Module.
Start your prototype on the included breadboard or solder directly to the (...)
Start your prototype on the included breadboard or solder directly to the (...)
User guide: PDF
Evaluation board
SIDEGIG-XOVEREVM — Analog, Active Crossover Audio Plug-in Module
The TI Analog, Active Crossover Audio Plug-in Module turns TI Audio Class-D amplifier EVM’s into a high quality, two-way speaker amplifier. The plug-in module makes it easy to remove the large and expensive passive crossover found in passive loudspeakers and create a biamped, two-way (...)
User guide: PDF
Calculation tool
LCFILTER-CALC-TOOL — Class-D LC Filter Designer
Calculate and design audio Class-D LC filters in minutes using the Class-D LC Filter Designer. Select from 4 different filter types based on Class-D output, switching topology and performance. Input corner frequency and quality (Q) factor to fine tune the audio frequency (...)
Supported products & hardware
Products
Speaker amps
Hardware development
Evaluation board
Software
Design tool
Simulation tool
PSPICE-FOR-TI — PSpice® for TI design and simulation tool
PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Reference designs
PMP10215 — Universal Input to 3.3V, 12V, 36V, 200W Continuous PSU for Class-D Amplifier Reference Design
This power module generates all voltages to supply a class-D audio amplifier. The main output voltage is 36V and delivers 200W continuously and 840W peak. The first stage is a power-factor corrected Boost. A Flyback converter supplies 12V on primary side as well as 12V@300mA and 3.3V@200mA on (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| HTSSOP (DDV) | 44 | Ultra Librarian |
Ordering & quality
Information included:
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Information included:
- Fab location
- Assembly location
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
Support & training
TI E2E™ forums with technical support from TI engineers
Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.
If you have questions about quality, packaging or ordering TI products, see TI support.