The TPA0211 is a 2-W mono bridge-tied-load (BTL) amplifier designed to drive speakers with as low as 4-Ω impedance. The device is ideal for small wireless communicators, notebook PCs, PDAs, anyplace a mono speaker and stereo headphones are required. From a 5-V supply, the TPA0211 can deliver 2 W of power into a 4-Ω speaker.

The gain of the input stage is set by the user-selected input resistor and a 50-kΩ internal feedback resistor (A_V = –R_F / R_I). The power stage is internally configured with a gain of –1.25 V/V in SE mode, and –2.5 V/V in BTL mode. Thus, the overall gain of the amplifier is –62.5 kΩ/R_I in SE mode and –125 kΩ/R_I in BTL mode. The input terminals are high-impedance CMOS inputs, and can be used as summing nodes.

The TPA0211 is available in the 8-pin thermally-enhanced MSOP-PowerPAD package (DGN) and operates over an ambient temperature range of –40°C to 85°C.

• 2 W Into 4 Ω From 5-V Supply
• 0.6 W Into 4 Ω From 3-V Supply
• Wide Power Supply Compatibility: 3 V to 5 V
• Low Supply Current:
  • 4 mA Typical at 5 V
  • 4 mA Typical at 3 V
• Shutdown Control: 1 A Typical
• Shutdown Pin Is TTL Compatible
• 40°C to 85°C Operating Temperature Range
• Space-Saving, Thermally-Enhanced MSOP-PowerPAD Packaging

• 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)
• 4
• Output power (W)
• 2
• SNR (dB)
• 93
• THD + N @ 1 kHz (%)
• 0.2
• Iq (Typ) (mA)
• 4
• Control interface
• Hardware
• Closed/open loop
• Closed
• Analog supply (Min) (V)
• 2.5
• Analog supply (Max) (V)
• 5.5
• PSRR (dB)
• 58
• Operating temperature range (C)
• -40 to 85

TPA0211的完整型号有：TPA0211DGN、TPA0211DGNR，以下是这些产品的关键参数及官网采购报价：

TPA0211DGN，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TPA0211DGN的批量USD价格：1.032（1000+）

TPA0211DGNR，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：NIPDAUAG，TI官网TPA0211DGNR的批量USD价格：.877（1000+）

TPA0211EVM TPA0211 评估模块

A 2W mono amplifier that will operate in both bridge-tied load (BTL) and single-ended (SE) modes. This makes the TPA0211 ideal for applications that require a mono earphone and speaker. In addition, integrated DEPOP circuitry eliminates speaker noise when the amplifier turns on, off, or exits (...)

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