The TPA0253 is a 1-W mono bridge-tied-load (BTL) amplifier designed to drive speakers with as low as 8- speaker.

The gain of the input stage is set by the user-selected input resistor and a 50-k/R_I in BTL mode. The input terminals are high-impedance CMOS inputs, and can be used as summing nodes.

The TPA0253 is available in the 10-pin thermally-enhanced MSOP package (DGQ) and operates over an ambient temperature range of –40°C to 85°C.

• Ideal for Notebook Computers, PDAs, and Other Small Portable Audio Devices
• 1 W Into 8- From 5-V Supply
• 0.3 W Into 8- From 3-V Supply
• Stereo Head Phone Drive
• Mono (BTL) Signal Created by Summing Left and Right Signals Internally
• Wide Power Supply Compatibility 2.5 V to 5.5 V
• Low Supply Current
  • 3.2 mA Typical at 5 V
  • 2.7 mA Typical at 3 V
• Shutdown Control ...1 uA Typical
• Shutdown Pin Is TTL Compatible
• 40°C to 85°C Operating Temperature Range
• Space-Saving, Thermally-Enhanced MSOP 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)
• 8
• Output power (W)
• 1
• SNR (dB)
• 93
• THD + N @ 1 kHz (%)
• 0.33
• Iq (Typ) (mA)
• 3.2
• Control interface
• Hardware
• Closed/open loop
• Open
• Analog supply (Min) (V)
• 2.5
• Analog supply (Max) (V)
• 5.5
• PSRR (dB)
• 65
• Operating temperature range (C)
• -40 to 85

TPA0253的完整型号有：TPA0253DGQ、TPA0253DGQR，以下是这些产品的关键参数及官网采购报价：

TPA0253DGQ，工作温度：-40 to 85，封装：HVSSOP (DGQ)-10，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：NIPDAU，TI官网TPA0253DGQ的批量USD价格：.896（1000+）

TPA0253DGQR，工作温度：-40 to 85，封装：HVSSOP (DGQ)-10，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TPA0253DGQR的批量USD价格：.763（1000+）

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