Product category:
Analogue and Mixed Signal ICs
News Release from: Texas Instruments (April 2001-March 2006) | Subject: TPA3000D1
Edited by the Electronicstalk Editorial
Team on 10 October 2001
Cool 17W amplifier needs no sink
Texas Instruments has introduced the industry's first 17W filter-free Class-D audio amplifier that enhances audio fidelity while maintaining high efficiency.
Texas Instruments has introduced the industry's first 17W filter-free Class-D audio amplifier that enhances audio fidelity while maintaining high efficiency The new device requires no external filter components like previous Class-D audio amplifiers and no heatsinks like Class-AB audio amplifiers, minimising heat, simplifying design and reducing component count, total system cost and space requirements for hands-free automotive adapters for cellular telephones, LCD monitors and multimedia speakers
This article was originally published on Electronicstalk on 8 Nov 2004 at 8.00am (UK)
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The TPA3000D1 provides 85% efficiency as a result of an extremely low RDS(on) of 220mohm.
This high efficiency reduces heat in the system eliminating the need for large heatsinks and through-hole packaging, assuring compatibility with high-volume automated production equipment.
The quality of the audio output of the TPA3000D1 is ideal for applications, such as hands-free cellular car kits.
At its maximum rated output level, it has less than 1% of total harmonic distortion and noise (THD+N).
The performance improves even more at the 12V supply rail when driving 10-12W of power.
The TPA3000D1 has a wide maximum voltage range of 7 to 20V, which allows it to effectively accommodate, with minimal load dumping circuitry, the voltage surges that are often encountered in automotive applications.
The device's four internal gain settings cut system costs and space requirements by eliminating the external feedback resistors.
To further extend battery life, when not in use, the TPA3000D1 can shift into a shutdown mode of operation where it consumes as little as 1uA of current.
Samples of the TPA3000D1 filter-free Class-D audio amplifier are available now with volume production planned for 4Q 2001.
The device is packaged in a standard PowerPAD surface mount 24-pin thin scale small outline package (TSSOP).
Suggested resale pricing in quantities of 1000 is $2.79.
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