TAS5142

ACTIVE

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

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Product details

Parameters

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Package | Pins | Size

HSSOP (DKD) 36 226 mm² 15.9 x 14.2 HTSSOP (DDV) 44 113 mm² 14 x 8.1 open-in-new Find other Speaker amps

Features

  • 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.

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Description

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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TAS5612LA ACTIVE 125-W stereo, 250-W mono, 12- to 34-V supply, PWM input class-D audio amplifier This product is a higher power 125-W stereo/250-W mono, digital-input power stage
TPA3245 ACTIVE 115-W stereo, 230-W mono, 12- to 31.5-V supply, analog input Class-D audio amplifier This product is a higher power 115-W stereo/ 230-W mono, analog-input power stage
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Technical documentation

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

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARDS Download
document-generic User guide
$399.00
Description

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 (...)

Features
  • 6 channel PurePath Digital™ evaluation module
  • Self-contained protection system (short-circuit and thermal)
  • Standard I²S and I²C /control connector for TI input board
  • Double-sided plated-through PCB layout
  • Populated EVM Board
  • Populated Interface Board
  • IDC, PSU and USB Cables
EVALUATION BOARDS Download
document-generic User guide
$399.00
Description

The TAS5508-5142K7EVM PurePath Digital™ customer evaluation amplifier module demonstrates two audio integrated circuits, TAS5508B and TAS5142, from Texas Instruments (TI).

The TAS5508BPAG is a high-performance 32-bit (24-bit input) multichannel PurePath Digital pulse width modulator (PWM) based on (...)

Features
  • 7-channel PurePath Digital evaluation module (double-sided plated-through PCB layout)
  • Stereo channel line output
  • Stereo headphone output
  • Self-contained protection system (short circuit and thermal)
  • Standard I2S and I2C/control connector for TI input board
  • Double-sided plated-through PCB layout

Included:

  • (...)

Design tools & simulation

BILL OF MATERIALS (BOM) Download
SLOR099.PDF (33 KB)
SCHEMATICS Download
SLOR091B.PDF (188 KB)
SCHEMATICS Download
SLOR093B.PDF (121 KB)

CAD/CAE symbols

Package Pins Download
HSSOP (DKD) 36 View options
HTSSOP (DDV) 44 View options

Ordering & quality

Support & training

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