9W+9W模拟输入立体声D类扬声器放大器 BD28412MUV

本IC不使用散热片,是可通过立体声BTL进行9W+9W输出或通过单声道PBTL进行18W输出的立体声D类扬声器放大器。内置高精度振荡器,为避免与AM无线电干扰,可选择多个开关频率。此外,可选择主/从模式,因此无需在意差拍噪声,即可实现使用2个IC的2.1Ch音响系统。实现了小输出时的低功耗,是最适于无线扬声器等搭载电池的扬声器系统的立体声D类扬声器放大器。

型号Status封装包装数量最小独立包装数量包装形态RoHS
BD28412MUV-E2开发中VQFN032V505025002500TapingYes

BD28412MUV 数据手册 Data Sheet

技术特性
Vcc(Min.)[V]4.5
Vcc(Max.)[V]13.0
Speaker Amp Outputs2.0
Speaker Amp PSRR[dB]55.0
Speaker Amp Input TypeAnalog Signal
Speaker Amp TypeClass D
Speaker Amp Output Power(Max.)[W]9
Operating Temperature (Min.)[°C]-25
Operating Temperature (Max.)[°C]85
技术资料下载
产品特点
  • Analog Differential Input
  • Low Standby Current
  • Output Feedback Circuitry Prevents Sound Quality Degradation Caused by Power Supply Voltage Fluctuation, Achieves Low Noise and Low Distortion, Eliminates the Need of Large Electrolytic-Capacitors for Decoupling
  • Power Limit Function (Linearly-programmable)
  • Selectable Switching Frequency
    (AM Avoidance Function)
  • Synchronization Control is Supported
    (Selectable Master and Slave Operation)
  • Parallel BTL (PBTL) is Supported
  • Wide Voltage Range (VCC=4.5V to 13V)
  • High Efficiency and Low-heat-generation Make the System Smaller, Thinner, and More Power-saving
  • Pop Noise Prevention During Power Supply ON/OFF
  • High Reliability Design by Built-in Protection Circuits
    • Overheat Protection
    • Under Voltage Protection
    • Output Short Protection
    • Output DC Voltage Protection
  • Small Package (VQFN032V5050) Achieves Mount Area Reduction
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