BD28412MUV
9W+9W模拟输入立体声D类扬声器放大器

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,是适用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。

Data Sheet 购买 *
* 本产品是标准级的产品。
本产品不建议使用于车载设备。

主要规格

 
型号 | BD28412MUV-E2
Status | 推荐品
封装 | VQFN032V5050
包装形态 | Taping
包装数量 | 2500
最小独立包装数量 | 2500
RoHS | Yes
长期供货计划 | 10 Years

特性:

Grade

Standard

Circuit Type

Class D

Number of Ch

2/1(Analog)

Speaker Amp Output Power(Max.)[W]

9

Gain [dB]

20/26/32/36

Maximum Output [W,RL=8Ω]

(9+9)/18

Minimum Load [Ω]

6/4

Input Type

Differential

Stand-by Current [µA]

0.1

Power Supply Voltage (Min.) [V]

4.5

Power Supply Voltage (Max.) [V]

13

Operating Temperature (Min.)[°C]

-25

Operating Temperature (Max.)[°C]

85

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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

Reference Design / Application Evaluation Kit

 
    • Evaluation Board - BD28412MUV-EVK-001
    • BD28412MUV is a 9W+9W stereo (or 18W monaural) class D amplifier, developed for battery equipped speaker systems such as wireless speakers. This IC is incorporated with a precise oscillator to generate multiple switching frequencies that can avoid the AM radio interference.

  • User's Guide
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