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TPA2005D1GQYR Folha de dados(PDF) 1 Page - Texas Instruments |
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TPA2005D1GQYR Folha de dados(HTML) 1 Page - Texas Instruments |
1 / 32 page 1 FEATURES APPLICATIONS DESCRIPTION APPLICATION CIRCUIT _ + IN– IN+ PWM H– Bridge VO+ VO– Internal Oscillator CS To Battery VDD GND Bias Circuitry RI RI + – Differential Input TPA2005D1 SHUTDOWN Actual Solution Size 2.5 mm CS RI RI 6 mm (MicroStar Junior BGA) TPA2005D1 www.ti.com............................................................................................................................................................... SLOS369F – JULY 2002 – REVISED JULY 2008 1.4-W MONO FILTER-FREE CLASS-D AUDIO POWER AMPLIFIER BGA Package (ZQY) 2 • 1.4 W Into 8 Ω From a 5 V Supply at – 3 mm x 5 mm MSOP PowerPAD™ Package THD = 10% (Typ) (DGN) • Maximum Battery Life and Minimum Heat – TPA2010D1 Available in 1,45 mm × 1,45 mm WCSP (YZF) – Efficiency With an 8- Ω Speaker: • Use TPA2006D1 for 1.8 V Logic Compatibility – 84% at 400 mW on Shutdown Pin – 79% at 100 mW – 2.8-mA Quiescent Current – 0.5- µA Shutdown Current • Ideal for Wireless or Cellular Handsets and • Capable of Driving an PDAs 8- Ω Speaker (2.5 V ≤ VDD ≤ 5.5 V) and a 4- Ω Speaker (2.5 V ≤ VDD ≤ 4.2 V) • Only Three External Components The TPA2005D1 is a 1.4-W high efficiency filter-free class-D audio power amplifier in a MicroStar Junior™ – Optimized PWM Output Stage Eliminates BGA, QFN, or MSOP package that requires only LC Output Filter three external components. – Internally Generated 250-kHz Switching Features like 84% efficiency, -71-dB PSRR at 217 Frequency Eliminates Capacitor and Hz, improved RF-rectification immunity, and 15 mm2 Resistor total PCB area make the TPA2005D1 ideal for – Improved PSRR (-71 dB at 217 Hz) and cellular handsets. A fast start-up time of 9 ms with Wide Supply Voltage (2.5 V to 5.5 V) minimal pop makes the TPA2005D1 ideal for PDA Eliminates Need for a Voltage Regulator applications. – Fully Differential Design Reduces RF In cellular handsets, the earpiece, speaker phone, Rectification and Eliminates Bypass and melody ringer can each be driven by the Capacitor TPA2005D1. The device allows independent gain control by summing the signals from each function – Improved CMRR Eliminates Two Input while minimizing noise to only 48 µV RMS. Coupling Capacitors • Space Saving Package The TPA2005D1 has short-circuit and thermal protection. – 3 mm × 3 mm QFN package (DRB) – 2,5 mm × 2,5 mm MicroStar Junior™ 1 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. 2 MicroStar Junior, PowerPAD are trademarks of Texas Instruments. PRODUCTION DATA information is current as of publication date. Copyright © 2002–2008, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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