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TAS5142

ACTIVE

100-W stereo, 200-W mono, 0- to 34-V supply, PWM input Class-D audio amplifier

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Data sheet

TAS5142

ACTIVE
Data sheet Order now

Product details

Audio input type PWM Architecture Class-D Speaker channels (max) 4 Rating Catalog Power stage supply (max) (V) 34 Power stage supply (min) (V) 0 Load (min) (Ω) 2 Output power (W) 100 SNR (dB) 102 THD + N at 1 kHz (%) 0.1 Control interface Hardware Closed/open loop Open Analog supply (min) (V) 10.8 Analog supply voltage (max) (V) 13.2 Operating temperature range (°C) 0 to 70
Audio input type PWM Architecture Class-D Speaker channels (max) 4 Rating Catalog Power stage supply (max) (V) 34 Power stage supply (min) (V) 0 Load (min) (Ω) 2 Output power (W) 100 SNR (dB) 102 THD + N at 1 kHz (%) 0.1 Control interface Hardware Closed/open loop Open Analog supply (min) (V) 10.8 Analog supply voltage (max) (V) 13.2 Operating temperature range (°C) 0 to 70
HTSSOP (DDV) 44 113.4 mm² 14 x 8.1
  • 2×100 W at 10% THD+N Into 4- DKD, BTL(1)
  • 2×80 W at 10% THD+N Into 6- DKD, BTL
  • 2×65 W at 10% THD+N Into 8- DKD, BTL
  • 4×40 W at 10% THD+N Into 3- SE
  • 4×30 W at 10% THD+N Into 4- SE
  • 1×160 W at 10% THD+N Into 3- PBTL
  • 1×200 W at 10% THD+N Into 2- PBTL
  • >100 dB SNR (A-Weighted)
  • <0.1% THD+N at 1 W
  • Two Thermally Enhanced Package Options:
    • DKD (36-pin PSOP3)
    • DDV (44-pin HTSSOP)
  • High-Efficiency Power Stage (>90%) With 140-m Output MOSFETs
  • Power-On Reset for Protection on Power Up Without Any Power-Supply Sequencing
  • Integrated Self-Protection Circuits Including Undervoltage, Overtemperature, Overload, Short Circuit
  • Error Reporting
  • EMI Compliant When Used With Recommended System Design
  • Intelligent Gate Drive
  • APPLICATIONS
    • Mini/Micro Audio System
    • DVD Receiver
    • Home Theater

(1) It is not recommended to drive 200 W (total power) into the DDV package continuously. For multichannel systems that require two channels to be driven at full power with the DDV package option, it is recommended to design the system so that the two channels are in two separate devices.
PurePath Digital, PowerPad are trademarks of Texas Instruments.
All trademarks are the property of their respective owners.
  • 2×100 W at 10% THD+N Into 4- DKD, BTL(1)
  • 2×80 W at 10% THD+N Into 6- DKD, BTL
  • 2×65 W at 10% THD+N Into 8- DKD, BTL
  • 4×40 W at 10% THD+N Into 3- SE
  • 4×30 W at 10% THD+N Into 4- SE
  • 1×160 W at 10% THD+N Into 3- PBTL
  • 1×200 W at 10% THD+N Into 2- PBTL
  • >100 dB SNR (A-Weighted)
  • <0.1% THD+N at 1 W
  • Two Thermally Enhanced Package Options:
    • DKD (36-pin PSOP3)
    • DDV (44-pin HTSSOP)
  • High-Efficiency Power Stage (>90%) With 140-m Output MOSFETs
  • Power-On Reset for Protection on Power Up Without Any Power-Supply Sequencing
  • Integrated Self-Protection Circuits Including Undervoltage, Overtemperature, Overload, Short Circuit
  • Error Reporting
  • EMI Compliant When Used With Recommended System Design
  • Intelligent Gate Drive
  • APPLICATIONS
    • Mini/Micro Audio System
    • DVD Receiver
    • Home Theater

(1) It is not recommended to drive 200 W (total power) into the DDV package continuously. For multichannel systems that require two channels to be driven at full power with the DDV package option, it is recommended to design the system so that the two channels are in two separate devices.
PurePath Digital, PowerPad are trademarks of Texas Instruments.
All trademarks are the property of their respective owners.

The TAS5142 is a third-generation, high-performance, integrated stereo digital amplifier power stage with an improved protection system. The TAS5142 is capable of driving a 4- bridge-tied load (BTL) at up to 100 W per channel with low integrated noise at the output, low THD+N performance, and low idle power dissipation.

A low-cost, high-fidelity audio system can be built using a TI chipset, comprising a modulator (e.g., TAS5508) and the TAS5142. This system only requires a simple passive LC demodulation filter to deliver high-quality, high-efficiency audio amplification with proven EMI compliance. This device requires two power supplies, at 12 V for GVDD and VDD, and at 32 V for PVDD. The TAS5142 does not require power-up sequencing due to internal power-on reset. The efficiency of this digital amplifier is greater than 90% into 6 , which enables the use of smaller power supplies and heatsinks.

The TAS5142 has an innovative protection system integrated on-chip, safeguarding the device against a wide range of fault conditions that could damage the system. These safeguards are short-circuit protection, overcurrent protection, undervoltage protection, and overtemperature protection. The TAS5142 has a new proprietary current-limiting circuit that reduces the possibility of device shutdown during high-level music transients. A new programmable overcurrent detector allows the use of lower-cost inductors in the demodulation output filter.

The TAS5142 is a third-generation, high-performance, integrated stereo digital amplifier power stage with an improved protection system. The TAS5142 is capable of driving a 4- bridge-tied load (BTL) at up to 100 W per channel with low integrated noise at the output, low THD+N performance, and low idle power dissipation.

A low-cost, high-fidelity audio system can be built using a TI chipset, comprising a modulator (e.g., TAS5508) and the TAS5142. This system only requires a simple passive LC demodulation filter to deliver high-quality, high-efficiency audio amplification with proven EMI compliance. This device requires two power supplies, at 12 V for GVDD and VDD, and at 32 V for PVDD. The TAS5142 does not require power-up sequencing due to internal power-on reset. The efficiency of this digital amplifier is greater than 90% into 6 , which enables the use of smaller power supplies and heatsinks.

The TAS5142 has an innovative protection system integrated on-chip, safeguarding the device against a wide range of fault conditions that could damage the system. These safeguards are short-circuit protection, overcurrent protection, undervoltage protection, and overtemperature protection. The TAS5142 has a new proprietary current-limiting circuit that reduces the possibility of device shutdown during high-level music transients. A new programmable overcurrent detector allows the use of lower-cost inductors in the demodulation output filter.
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Technical documentation

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Type Title Date
* Data sheet Stereo Digital Amplifier Power Stage datasheet (Rev. B) 18 May 2005
Application note Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) 26 Aug 2019
Application note AN-1849 An Audio Amplifier Power Supply Design (Rev. C) 27 Jun 2019
Application note AN-1737 Managing EMI in Class D Audio Applications (Rev. A) 01 May 2013
Application note PSRR for Purepath Digital Audio Amplifiers 15 Apr 2005
Application note Power Rating in Audio Amplifier (Rev. A) 04 Mar 2005

Design & development

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Evaluation board

TAS5142DDV6EVM2 — TAS5142DDV6 Evaluation Module (EVM)

The TAS5142DDV6EVM2 PurePath Digital™ customer evaluation module demonstrates the integrated circuits TAS5142DDV and TAS5086DBT from Texas Instruments (TI).

The TAS5142DDV is a high-performance, integrated stereo digital amplifier power stage designed to drive 4 Ω speakers at up to (...)

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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 (...)
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