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:
Wine farm turns to solar installation for power
Current Automation
Power Electronics / Power Management
Slanghoek Wine farm opted into a power purchase agreement to lower overall electricity costs and enter a true sustainable future, with a price-competitive edge on lower running costs.
Read more...
Industrial PSU family
Brabek
Power Electronics / Power Management
The RACPRO1 family of PSUs supports a universal DC input voltage range from 430 to 850 V DC, allowing the parts to support renewable energy and microgrid applications.
Read more...
Integrated POL voltage regulators
EBV Electrolink
Power Electronics / Power Management
Infineon’s TDA38807 and TDA38806 are their highest density high-efficiency integrated point-of-load (IPOL) solutions for smart enterprise systems.
Read more...
Hi-Rel quarter-brick converters
Accutronics
Power Electronics / Power Management
Gaia Converter’s quarter-brick series DC-DC power modules provides output power levels ranging from 75 to 250 W in fixed output voltages.
Read more...
1700 V GaN Switcher IC
Future Electronics
Power Electronics / Power Management
Power Integrations has introduced a new member of its InnoMux-2 family of single-stage regulated multi-output offline power supply ICs, the industry’s first 1700 V gallium nitride switch.
Read more...
How ADI battery management solutions empower safer, smarter robots
Altron Arrow
Editor's Choice Power Electronics / Power Management
Choosing an appropriate battery pack and its accompanying battery management system is a critical decision in designing an autonomous mobile robot.
Read more...
Industrial power supply range
RFiber Solutions
Power Electronics / Power Management
SynQor’s ruggedised AC-DC and DC-DC converters and filters are designed for a wide range of industrial applications, including those required to withstand harsh environments.
Read more...
PSUs for industrial applications
Power Electronics / Power Management
RECOM’s REDIIN120/240/480 series of AC-DC converters perfectly corresponds with customer needs by exhibiting high efficiency and low energy consumption at no load.
Read more...
Highest density automotive-grade power modules
Altron Arrow
Power Electronics / Power Management
Vicor has released three automotive-grade power modules for 48 V EV systems, which deliver industry-leading power density.
Read more...
MOSFET for automotive applications
Altron Arrow
Power Electronics / Power Management
Infineon’s OptiMOS 7 100 V is offered in the company’s versatile and robust, high-current SSO8 5 x 6 mm
2 SMD package.
Read more...
printer friendly version