- 制造厂商：TI
- 产品类别：音频
- 技术类目：音频放大器 - 扬声器放大器
- 功能描述：具有 85mW 耳机放大器的 1W 单声道、模拟输入 AB 类音频放大器
- 点击这里打开及下载TPA0253的技术文档资料
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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/RI 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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