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TPA005D14 Folha de dados(PDF) 1 Page - Texas Instruments |
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TPA005D14 Folha de dados(HTML) 1 Page - Texas Instruments |
1 / 29 page TPA005D14 2-W STEREO CLASS-D AUDIO POWER AMPLIFIER SLOS240A – AUGUST 1999 – REVISED MARCH 2000 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Choose TPA2000D2 For Upgrade D Extremely Efficient Class-D Stereo Operation D Drives L and R Channels, Plus Stereo Headphones D 2-W BTL Output Into 4 Ω D 5-W Peak Music Power D Fully Specified for 5-V Operation D Low Quiescent Current D Shutdown Control . . . 0.2 µA D Class-AB Headphone Amplifier D Thermally-Enhanced PowerPAD™ Surface Mount Packaging D Thermal, Over-Current, and Under-Voltage Protection description The TPA005D14 is a monolithic power IC stereo audio amplifier that operates in extremely efficient Class-D operation, using the high switching speed of power DMOS transistors to replicate the analog input signal through high-frequency switching of the output stage. This allows the TPA005D14 to be configured as a bridge-tied load (BTL) amplifier capable of delivering up to 2 W of continuous average power into a 4- Ω load at 0.4% THD+N from a 5-V power supply in the high-fidelity audio frequency range (20 Hz to 20 kHz). A BTL configuration eliminates the need for external coupling capacitors on the output. Included is a Class-AB headphone amplifier with interface logic to select between the two modes of operation. Only one amplifier is active at any given time, and the other is in power-saving sleep mode. Also, a chip-level shutdown control is provided to limit total quiescent current to 0.2 µA, making the device ideal for battery-powered applications. A full range of protection circuitry is included to increase device reliability: thermal, over-current, and under-voltage shutdown, with two status feedback terminals for use when any error condition is encountered. The high switching frequency of the TPA005D14 allows the output filter to consist of three small capacitors and two small inductors per channel. The high switching frequency also allows for good THD+N performance. The TPA005D14 is offered in the thermally enhanced 48-pin PowerPAD TSSOP surface-mount package (designator DCA). Copyright © 2000, Texas Instruments Incorporated PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PowerPAD is a trademark of Texas Instruments Incorporated. SHUTDOWN MUTE MODE LINN LINP LCOMP AGND VDD LPVDD LOUTP LOUTP PGND PGND LOUTN LOUTN LPVDD HPDL HPLOUT HPLIN AGND PVDD VCP CP3 CP2 COSC AGND AGND RINN RINP RCOMP FAULT0 FAULT1 RPVDD ROUTP ROUTP PGND PGND ROUTN ROUTN RPVDD HPDR HPROUT HPRIN V2P5 PVDD PGND CP4 CP1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 DCA PACKAGE (TOP VIEW) |
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Descrição semelhante - TPA005D14 |
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