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TPA2005D1DRBRG4 Arkusz danych(PDF) 1 Page - Texas Instruments |
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TPA2005D1DRBRG4 Arkusz danych(HTML) 1 Page - Texas Instruments |
1 / 42 page _ + 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 Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPA2005D1 SLOS369G – JULY 2002 – REVISED OCTOBER 2015 TPA2005D1 1.4-W MONO Filter-Free Class-D Audio Power Amplifier 1 Features 3 Description The TPA2005D1 is a 1.4-W high efficiency filter-free 1 • 1.4 W Into 8 Ω From a 5 V Supply at class-D audio power amplifier in a MicroStar Junior™ THD = 10% (Typ) BGA, QFN, or MSOP package that requires only • Maximum Battery Life and Minimum Heat three external components. – Efficiency With an 8- Ω Speaker: Features like 84% efficiency, –71-dB PSRR – 84% at 400 mW at 217 Hz, improved RF-rectification immunity, and 15 mm2 total PCB area make the TPA2005D1 ideal – 79% at 100 mW for cellular handsets. A fast start-up time of 9 ms with – 2.8-mA Quiescent Current minimal pop makes the TPA2005D1 ideal for PDA – 0.5- μA Shutdown Current applications. • Capable of Driving an In cellular handsets, the earpiece, speaker phone, 8- Ω Speaker (2.5 V ≤ VDD ≤ 5.5 V) and a and melody ringer can each be driven by the 4- Ω Speaker (2.5 V ≤ VDD ≤ 4.2 V) TPA2005D1. The device allows independent gain control by summing the signals from each function • Only Three External Components while minimizing noise to only 48 μVRMS. – Optimized PWM Output Stage Eliminates LC Output Filter The TPA2005D1 has short-circuit and thermal protection. – Internally Generated 250-kHz Switching Frequency Eliminates Capacitor & Resistor Device Information(1) – Improved PSRR (–71 dB at 217 Hz) and PART NUMBER PACKAGE BODY SIZE (NOM) Wide Supply Voltage (2.5 V to 5.5 V) HVSSOP (8) 3.00 mm × 3.00 mm Eliminates Need for a Voltage Regulator VSON (8) 3.00 mm x 3.00 mm TPA2005D1 – Fully Differential Design Reduces RF BGA MICROSTAR 2.50 mm x 2.50 mm JUNIOR (15) Rectification & Eliminates Bypass Capacitor – Improved CMRR Eliminates Two Input (1) For all available packages, see the orderable addendum at the end of the datasheet. Coupling Capacitors • Space Saving Package Device Layout and Size – 3 mm × 3 mm QFN package (DRB) – 2.5 mm × 2.5 mm MicroStar Junior™ BGA Package (ZQY) – 3 mm x 5 mm MSOP PowerPAD™ Package (DGN) • Use TPA2006D1 for 1.8 V Logic Compatibility on Shutdown Pin 2 Applications Ideal for Wireless or Cellular Handsets and PDAs Application Circuit 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. |
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