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TPA2012D2RTJRG4 Datasheet(PDF) 1 Page - Texas Instruments |
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TPA2012D2RTJRG4 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 33 page Copyright © 2016, Texas Instruments Incorporated Product Folder Order Now Technical Documents Tools & Software Support & Community Reference Design 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. TPA2012D2 SLOS438F – DECEMBER 2004 – REVISED MARCH 2017 TPA2012D2 2.1-W/Channel Stereo Filter-Free Class-D Audio Power Amplifier 1 1 Features 1 • Output Power By Package: – WQFN: – 2.1 W/Ch Into 4 Ω at 5 V – 1.4 W/Ch Into 8 Ω at 5 V – 720 mW/Ch Into 8 Ω at 3.6 V – DSBGA: – 1.2 W/Ch Into 4 Ω at 5 V (Thermally Limited) – 1.3 W/Ch Into 8 Ω at 5 V – 720 mW/Ch Into 8 Ω at 3.6 V • Only Two External Components Required • Power Supply Range: 2.5 V to 5.5 V • Independent Shutdown Control for Each Channel • Selectable Gain of 6, 12, 18, and 24 dB • Internal Pulldown Resistor on Shutdown Pins • High PSRR: 77 dB at 217 Hz • Fast Start-Up Time (3.5 ms) • Low Supply Current • Low Shutdown Current • Short-Circuit and Thermal Protection • Space-Saving Packages – 2.01-mm × 2.01-mm NanoFree™ DSBGA (YZH) – 4-mm × 4-mm Thin WQFN (RTJ) With PowerPAD™ 2 Applications • Wireless or Cellular Handsets and PDAs • Portable DVD Players • Notebook PCs • Portable Radios • Portable Gaming • Educational Toys • USB Speakers 3 Description The TPA2012D2 is a stereo, filter-free, Class-D audio amplifier (Class-D amp) available in a DSBGA or WQFN package. The TPA2012D2 only requires two external components for operation. The TPA2012D2 features independent shutdown controls for each channel. The gain can be selected to 6, 12, 18, or 24 dB using the G0 and G1 gain select pins. High PSRR and differential architecture provide increased immunity to noise and RF rectification. In addition to these features, a fast start- up time and small package size make the TPA2012D2 class-D amp an ideal choice for both cellular handsets and PDAs. The TPA2012D2 is capable of driving 1.4 W/Ch at 5 V or 720 mW/Ch at 3.6 V into 8 Ω. The TPA2012D2 is also capable of driving 4 Ω. The TPA2012D2 is thermally limited in DSBGA and may not achieve 2.1 W/Ch for 4 Ω. The maximum output power in the DSBGA is determined by the ability of the circuit board to remove heat. Figure 33 shows thermally limited region of the DSBGA in relation to the WQFN package. The TPA2012D2 provides thermal and short-circuit protection. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) TPA2012D2 DSBGA (16) 2.01 mm × 2.01 mm WQFN (20) 4.00 mm × 4.00 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. Simplified Application Schematic |
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