The TPA6205A1 device is a 1.25-W mono fully differential amplifier designed to drive a speaker with at least 8-Ω impedance while consuming less than 37 mm2 (ZQV package option) total printed-circuit-board (PCB) area in most applications. This device operates from 2.5 V to 5.5 V, drawing only 1.7 mA of quiescent supply current. The TPA6205A1 is available in the space-saving 2-mm × 2-mm MicroStar Junior BGA package, and the space saving 3-mm × 3-mm QFN (DRB) package.

Features like 85-dB PSRR from 90 Hz to 5 kHz, improved RF-rectification immunity, and small PCB area makes the TPA6205A1 ideal for wireless handsets. A fast start-up time of 4s with minimal pop makes the TPA6205A1 ideal for PDA applications.

• 1.25 W Into 8-Ω From a 5-V Supply at THD = 1% (Typical)
• Shutdown Pin has 1.8-V Compatible Thresholds
• Low Supply Current: 1.7 mA Typical
• Shutdown Current < 10 μA
• Only Five External Components
  • Improved PSRR (90 dB) and Wide Supply Voltage (2.5 V to 5.5 V) for Direct Battery Operation
  • Fully Differential Design Reduces RF Rectification
  • Improved CMRR Eliminates Two Input Coupling Capacitors
  • C(BYPASS) Is Optional Due to Fully Differential Design and High PSRR
• Available in 3-mm × 3-mm QFN Package (DRB)
• Available in an 8-Pin PowerPAD? MSOP (DGN)
• Available in a 2-mm ? 2-mm MicroStar Junior? BGA Package (ZQV)

• Audio input type
• Analog Input
• Architecture
• Class-AB
• Speaker channels (Max)
• Mono
• Power stage supply (Max) (V)
• 5.5
• Power stage supply (Min) (V)
• 2.5
• Load (Min) (ohms)
• 8
• Output power (W)
• 1.25
• SNR (dB)
• 104
• THD + N @ 1 kHz (%)
• 0.06
• Iq (Typ) (mA)
• 1.7
• Control interface
• Hardware
• Closed/open loop
• Closed
• Analog supply (Min) (V)
• 2.5
• Analog supply (Max) (V)
• 5.5
• PSRR (dB)
• 90
• Operating temperature range (C)
• -40 to 85

TPA6205A1的完整型号有：TPA6205A1DGN、TPA6205A1DGNR、TPA6205A1DRBR、TPA6205A1DRBT、TPA6205A1NMBR，以下是这些产品的关键参数及官网采购报价：

TPA6205A1DGN，工作温度：-40 to 85，封装：HVSSOP (DGN)-8，包装数量MPQ：80个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAUAG，TI官网TPA6205A1DGN的批量USD价格：.406（1000+）

TPA6205A1DGNR，工作温度：-40 to 85，封装：HVSSOP (DGN)-8，包装数量MPQ：2500个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网TPA6205A1DGNR的批量USD价格：.338（1000+）

TPA6205A1DRBR，工作温度：-40 to 85，封装：SON (DRB)-8，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网TPA6205A1DRBR的批量USD价格：.338（1000+）

TPA6205A1DRBT，工作温度：-40 to 85，封装：SON (DRB)-8，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网TPA6205A1DRBT的批量USD价格：.406（1000+）

TPA6205A1NMBR，工作温度：-40 to 85，封装：NFBGA (NMB)-8，包装数量MPQ：2500个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：SNAGCU，TI官网TPA6205A1NMBR的批量USD价格：.338（1000+）

TPA6205A1EVM — TPA6205A1 Evaluation Module

The TPA6205A1DRB audio power amplifier evaluation module is a complete, low-power single-channel audio power amplifier. It consists of the TI TPA6205A1DRB 1.25W low-voltage audio power amplifier IC in a very small DRB package, along with a small number of other parts mounted on a circuit (...)

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