Automotive, 50-W, 2-ch, 4.5- to 26-V supply analog input Class-D audio amplifier
Product details
Parameters
Package | Pins | Size
Features
- Supports Multiple Output Configurations
- 2 × 50 W Into a 4-Ω BTL Load at 21 V (TPA3116D2-Q1)
- 2 × 30 W Into an 8-Ω BTL Load at 24 V (TPA3118D2-Q1)
- Wide Voltage Range: 4.5 V to 26 V
- Efficient Class-D Operation
- >90% Power Efficiency Combined With Low Idle Loss Greatly Reduces Heat Sink Size
- 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 BTL and Mono PBTL Modes
- Single Power Supply Reduces Component Count
- Integrated Self-Protection Circuits Including Overvoltage, Undervoltage, Overtemperature, DC-Detect, and Short Circuit With Error Reporting
- Designed for Automotive EMC Requirements
- Thermally Enhanced Packages
- DAD (32-pin HTSSOP Pad Up)
- DAP (32-pin HTSSOP Pad Down)
- –40°C to 125°C Ambient Temperature Range
- Qualified for Automotive Applications
- AEC-Q100 Qualified With the Following Results:
- Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
- Device HBM ESD Classification Level H2
- Device CDM ESD Classification Level C4B
Description
The TPA311xD2-Q1 devices are automotive stereo, efficient, digital-amplifier power stages for driving speakers up to 100 W into 2 Ω in mono. The TPA3118D2-Q1 can even drive 2 × 30 W into 8 Ω without a heat sink on a dual-layer PCB. If even higher power is needed, the TPA3116D2-Q1 drives 2 × 50 W into 4 Ω with a small heat sink attached to its top-side thermal pad.
The TPA311xD2-Q1 advanced oscillator and PLL circuit employ a multiple-switching-frequency option to avoid AM interference; this is achieved together with an option of either master or slave selection, making it possible to synchronize multiple devices.
The TPA311xD2-Q1 devices 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.
Technical documentation
| Type | Title | Date | |
|---|---|---|---|
| * | Datasheet | TPA311xD2-Q1 100-W and 50-W Class-D Stereo Automotive Amplifiers datasheet (Rev. B) | Oct. 05, 2016 |
| Application notes | Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) | Aug. 26, 2019 | |
| Application notes | Class-D LC Filter Design (Rev. B) | Feb. 20, 2015 | |
| Application notes | AN-1737 Managing EMI in Class D Audio Applications (Rev. A) | May 01, 2013 | |
| User guides | 2x30W Class D Stereo Amplifier with AM Avoidance (Rev. A) | Dec. 19, 2012 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
The TPA3116D2 evaluation module showcases TI’s 50-W Stereo Analog Input Class-D Audio Amplifier with a small number of external components mounted on a circuit board that can be used to directly drive a speaker with an external analog audio source as the input; the evaluation module can also (...)
Features
- 2x50W into 4Ω at 24V with <1% THD+N in Stereo BTL mode
- 1x100W into 3Ω at 24V with 10% THD+N in Mono PBTL mode
- Wide supply voltage range: 4.5V to 26V
- Wide Switching Rates 400 kHz – 1.2 MHz
- Four Selectable, Fixed Gain Settings
- Integrated Self-Protection Circuits Including Overvoltage, Undervoltage (...)
Design tools & simulation
Reference designs
1.) Highly efficient single-phase synchronous boost converter using the LM5122 controller (...)
Design files
-
download PMP9484 BOM.pdf (32KB) -
download PMP9484 Gerber.zip (375KB)
CAD/CAE symbols
| Package | Pins | Download |
|---|---|---|
| HTSSOP (DAD) | 32 | View options |
Ordering & quality
Support & training
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Training series
View all TI training and videosVideos
PurePath™ Studio Graphical Development Environment Start-up
A step-by-step guide to downloading and installing TI's PurePath™ Studio software for audio evaluation modules. This video features the TLV320AIC3254EVM-U.
