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TPA3128D2

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Class-D-Audioverstärker mit 30 W Stereo, 60 W Mono, 4,5 bis 26 V, Analogeingang und niedrigem Leerla

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Datenblatt

TPA3128D2

AKTIV
Datenblatt Jetzt bestellen

Produktdetails

Audio input type Analog Input Architecture Class-D Speaker channels (max) Stereo Rating Catalog Power stage supply (max) (V) 26 Power stage supply (min) (V) 4.5 Load (min) (Ω) 2 Output power (W) 30 SNR (dB) 102 THD + N at 1 kHz (%) 0.1 Iq (typ) (mA) 17 Control interface Hardware Closed/open loop Closed Analog supply (min) (V) 4.5 Analog supply voltage (max) (V) 26 PSRR (dB) 70 Operating temperature range (°C) -40 to 85
Audio input type Analog Input Architecture Class-D Speaker channels (max) Stereo Rating Catalog Power stage supply (max) (V) 26 Power stage supply (min) (V) 4.5 Load (min) (Ω) 2 Output power (W) 30 SNR (dB) 102 THD + N at 1 kHz (%) 0.1 Iq (typ) (mA) 17 Control interface Hardware Closed/open loop Closed Analog supply (min) (V) 4.5 Analog supply voltage (max) (V) 26 PSRR (dB) 70 Operating temperature range (°C) -40 to 85
HTSSOP (DAP) 32 89.1 mm² 11 x 8.1
  • Supports Multiple Output Configurations
    • 2 × 30 W Into a 8-Ω BTL Load at 24 V (TPA3128D2)
    • 2 × 15 W Into a 8-Ω BTL Load at 15 V (TPA3129D2)
  • Wide Voltage Range: 4.5 V to 26 V
  • Efficient Class-D Operation
    • Very Low Idle Current: <23 mA for recommended LC filter configurations
    • Greater than 90% Power Efficiency Combined With Low Idle Loss Greatly Eliminates Need for Heat Sink
    • Adaptive Modulation Schemes based on Output Power
    • Smart Amplifier Drivers to Reduce the Requirement for RC Snubbers
  • Multiple Switching Frequencies
    • AM Avoidance
    • Master and Slave Synchronization
    • 300-KHz to 1.2-MHz Switching Frequency
  • Feedback Power-Stage Architecture With High PSRR Reduces PSU Requirements
  • Programmable Power Limit
  • Parallel BTL Mode and Mono-Channel Mode Support
  • Supports Both Single and Dual Power Supply Modes
  • Integrated Self-Protection Circuits Including Overvoltage, Undervoltage, Overtemperature, DC-Detect, and Short Circuit With Error Reporting
  • Thermally Enhanced Packages
    • DAP (32-Pin HTSSOP Pad Down for TPA3128D2 and TPA3129D2)
  • Supports Multiple Output Configurations
    • 2 × 30 W Into a 8-Ω BTL Load at 24 V (TPA3128D2)
    • 2 × 15 W Into a 8-Ω BTL Load at 15 V (TPA3129D2)
  • Wide Voltage Range: 4.5 V to 26 V
  • Efficient Class-D Operation
    • Very Low Idle Current: <23 mA for recommended LC filter configurations
    • Greater than 90% Power Efficiency Combined With Low Idle Loss Greatly Eliminates Need for Heat Sink
    • Adaptive Modulation Schemes based on Output Power
    • Smart Amplifier Drivers to Reduce the Requirement for RC Snubbers
  • Multiple Switching Frequencies
    • AM Avoidance
    • Master and Slave Synchronization
    • 300-KHz to 1.2-MHz Switching Frequency
  • Feedback Power-Stage Architecture With High PSRR Reduces PSU Requirements
  • Programmable Power Limit
  • Parallel BTL Mode and Mono-Channel Mode Support
  • Supports Both Single and Dual Power Supply Modes
  • Integrated Self-Protection Circuits Including Overvoltage, Undervoltage, Overtemperature, DC-Detect, and Short Circuit With Error Reporting
  • Thermally Enhanced Packages
    • DAP (32-Pin HTSSOP Pad Down for TPA3128D2 and TPA3129D2)

The TPA3128D2 and TPA3129D2 have low idle power loss and helps to extend the battery life of Bluetooth/Wireless speakers and other battery-powered audio systems. The high efficiency of the TPA3128D2 device allows it to do 2 × 30 W without external heat sink on a dual layer PCB. The high efficiency of the TPA3129D2 device allows it to do 2 × 15 W without external heat sink on a dual layer PCB. This device proposed an efficiency boost Mode, which can dynamically reduced the current ripple of the external LC filter and the idle current .

The TPA31xxD2 advanced oscillator/PLL circuit employs a multiple switching frequency option to avoid AM interferences, which is achieved together with an option of either master or slave option, making it possible to synchronize multiple devices.

The TPA31xxD2 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.

The TPA3128D2 and TPA3129D2 have low idle power loss and helps to extend the battery life of Bluetooth/Wireless speakers and other battery-powered audio systems. The high efficiency of the TPA3128D2 device allows it to do 2 × 30 W without external heat sink on a dual layer PCB. The high efficiency of the TPA3129D2 device allows it to do 2 × 15 W without external heat sink on a dual layer PCB. This device proposed an efficiency boost Mode, which can dynamically reduced the current ripple of the external LC filter and the idle current .

The TPA31xxD2 advanced oscillator/PLL circuit employs a multiple switching frequency option to avoid AM interferences, which is achieved together with an option of either master or slave option, making it possible to synchronize multiple devices.

The TPA31xxD2 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.
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Technische Dokumentation

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Typ Titel Datum
* Data sheet TPA3128D2, TPA3129D2 2x30-W, 2x15-W Class-D Amplifier With Low Idle Power Dissipation datasheet (Rev. C) PDF | HTML 22 Jan 2018
Application note Achieve Ultra-Low Idle Current With TPA3128D2 (Rev. A) 01 Mai 2018
White paper Overview of system-level protection in class-D audio amplifiers 06 Dez 2017
Technical article What are the building blocks of Bluetooth speakers? PDF | HTML 21 Feb 2017
More literature TPA3128D2EVM Quick Start Guide 30 Jan 2017
User guide TPA3128D2 Evaluation Module 06 Dez 2016

Design und Entwicklung

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Evaluierungsplatine

TPA3110D2EVM — TPA3110D2-Evaluierungsmodul

The TPA3110D2 evaluation module consists of a single 15-W, Class-D, stereo audio power amplifier complete 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 EVM’s default (...)

Benutzerhandbuch: PDF
Nicht verfügbar auf TI.com
Evaluierungsplatine

TPA3128D2EVM — TPA3128D2 2×30-W-Klasse D-Verstärker mit niedriger Leerlauf-Verlustleistung – Evaluierungsmodul

The TPA3128D2EVM allows for the evaluation of the TPA3128D2. This is an efficient class D audio power amplifier for driving 2 bridged-tied stereo speakers at 30W per channel.  The TPA3128D2 has low idle power loss and helps to extend the battery-life of Bluetooth/Wireless speaker and other (...)
Benutzerhandbuch: PDF
Nicht verfügbar auf TI.com
Simulationstool

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Referenzdesigns

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Design guide: PDF
Schaltplan: PDF
Referenzdesigns

PMP15036 — Referenzdesign für Netzteil mit Envelope-Tracking-Technik für Audioverstärker

This envelope-tracking power reference design maintains helps extend battery life in a portable audio applications, such as Bluetooth® or Wi-Fi speakers. The low-power step-down converter in the design features envelope-tracking capability to an audio power amplifier, maintaining high (...)
Test report: PDF
Schaltplan: PDF
Gehäuse Pins CAD-Symbole, Footprints und 3D-Modelle
HTSSOP (DAP) 32 Ultra Librarian
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