Amplifiers deliver 90% power efficiency for automotive audio
8 February 2006
Power Electronics / Power Management
Ushering in a higher standard in car audio, Texas Instruments has released its first digital amplifiers designed to meet the high reliability and unique requirements of the automotive market.
The TAS5414 and TAS5424 Class D amplifiers introduce the power efficiency of digital amplification for automotive audio applications, such as head units and external amplifiers.
Specifically designed for the automotive market, the TAS5414 is a single-ended input amplifier and the TAS5424 has differential input, enabling it to achieve higher dynamic range performance in a challenging board signal routing environment. The two amplifiers let the designer select the optimum solution, given their system performance and cost requirements.
These digital amplifiers are ultra-efficient 4-channel digital audio Class D amplifiers. At moderate power levels, Class A/B amplifiers provide at most 40-50% efficiency. With the TAS54x4 amplifiers, TI delivers 90% power efficiency at normal radio listening levels for automotive audio systems, according to the company.
Comparatively, two TAS54x4 amplifiers can provide eight channels of audio, while generating less heat than a 4-channel Class A/B-based system. This, says TI, enables a whole new class of cost-effective 8-channel audio systems that are lighter, smaller and more power efficient than existing systems.
EMI performance is important. TI overcomes EMI at the source through innovative architecture and process advancements, such as an enhanced digital PWM topology, optimised gate drive technology and AM interference avoidance. This eliminates the need for expensive shielding and other EMI countermeasures.
The TAS5414IDKD comes in a 36-pin PSOP3 and the TAS5424IDKD in a 44-pin PSOP3.
See www.ebg.co.za for local distributors for Texas Instruments.
Further reading:
The importance of power integrity
Spectrum Concepts
Power Electronics / Power Management
[Sponsored] Behind every high-speed system lies the need for power integrity. Without it, even the cleanest signal paths become compromised.
Read more...
Precise multi-vital sign monitoring
Future Electronics
Power Electronics / Power Management
The AS7058 by ams OSRAM is an integrated multi-vital sign monitoring device, which provides a complete photoplethysmogram, electrocardiogram, body impedance sensor, and electrodermal activity sensor.
Read more...
Automotive battery diagnostics tester
Comtest
Power Electronics / Power Management
Midtronics’ MVT handheld battery tester is a revolutionary tool, powered by MDX-AI, which is set to redefine the standards of battery diagnostics and testing in the automotive industry.
Read more...
Advanced 3-phase controllers
Future Electronics
Power Electronics / Power Management
The STSPIN32G0 by STMicroelectronics is a family of highly integrated system-in-package providing solution suitable for driving three-phase brushless motors.
Read more...
Converting high voltages without a transformer
Altron Arrow
Editor's Choice Power Electronics / Power Management
With appropriate power converter ICs, such as the LTC7897 from Analog Devices, many applications can be suitably powered without having to use complex and cost-intensive transformers.
Read more...
Reliable power for demanding applications
Conical Technologies
Power Electronics / Power Management
The Mibbo Power MTR480 three-phase DIN-rail power supply is engineered to meet stringent industrial automation requirements, offering dependable performance in environments where downtime is not an option.
Read more...
Powering performance and precision
Future Electronics
Power Electronics / Power Management
onsemi’s innovative T10 series MOSFETs, available in 40 V and 80 V versions, are designed for high-efficiency, fast-switching, and power-dense applications.
Read more...
Programmable flyback switcher ICs
Future Electronics
Power Electronics / Power Management
Power Integrations has announced the release of the InnoSwitch5-Pro family of programmable flyback switcher ICs, which offer more than 95% efficiency in streamlined AC-DC converter designs.
Read more...
Multilayer chip beads with 8 A rating
RS South Africa
Power Electronics / Power Management
TDK Corporation has expanded its MPZ1608-PH series of large-current multilayer chip beads for automotive and commercial power supply lines.
Read more...
The role of bidirectional charging in the evolving energy landscape
Avnet Silica
Power Electronics / Power Management
As reliance on renewable sources like wind and solar continues to grow, the need for efficient energy flow and storage solutions has become more critical than ever.
Read more...
printer friendly version