回到顶部

4通道、汽车应用D类音频放大器

支持较宽的工作电压(6V至25.5V)范围,提供汽车诊断和抛负载保护

产品详情

主要特征

应用/用途

简化框图

技术文档

支持和培训

在Maxim的知识库中搜索技术问题的答案

过滤搜索

Maxim的专业工程师团队也会为您解答相应的技术问题,请访问Maxim的 支持中心

主要特征

  • High Output Power (10% THD+N)
    • 2 x 160W into 2Ω at 24V
    • 4 x 80W into 4Ω at 24V
  • 2 Channels Can Be Paralleled
  • Feedback After the Filter
    • Improves THD+N
    • Low Output Impedance
    • High-Frequency Response
    • Improved Damping of Complex Loads
    • Enables Low-Cost Inductors
  • 102dB SNR
  • Low 0.04% THD+N
  • 70dB PSRR
  • On-Board Diagnostics
    • Short-to-Battery/GND
    • Open/Shorted Load
    • Tweeter Detect
  • Protection and Monitoring Functions:
    • Short-Circuit Protection
    • 50V Load-Dump Protection
    • Programmable Clip Detection
    • DC Offset Detection
    • Open Battery/GND Tolerant
    • Thermal-Overload Protection
    • Thermal Warning Indication
  • Four-Address I²C Control Interface
  • Low-Power Shutdown Mode
  • Up to 90.5% Efficiency
  • -40°C to +125°C Ambient Operating Temperature
  • 48-Pin TSSOP-EPR (Top Side Exposed Pad) Package
  • AEC-Q100 Qualified

应用/用途

  • 有源扬声器系统
  • 汽车立体声系统
  • 分立式放大模块
  • 无线环绕系统
  • 无线装置
  • 后排座娱乐系统

描述

The MAX13301 combines four high-efficiency Class D amplifiers with integrated diagnostic hardware for reliable automotive audio systems, and delivers up to 80W at 10% THD+N per channel into 4Ω when operating from a 24V supply.

The internal diagnostics evaluate each channel's output impedance to check for shorts across the outputs, to the battery, or to ground. The I²C interface allows the system to query critical device parameters such as device temperature and output clipping. The device is programmable to four different I²C addresses.

The audio amplifiers feature single-ended analog inputs with a common negative input. The MAX13301 has a fixed gain of 26dB.

The Class D amplifier has 10 programmable switching frequencies between 300kHz and 750kHz.

The BTL outputs are protected against short circuits and thermal overload. The outputs can be configured as a 2-, 3-, or 4-channel amplifier. The device provides 50V load-dump protection, and is offered in the thermally enhanced, 48-pin TSSOP-EPR package operating over the -40°C to +125°C temperature range.

简化框图

MAX13301:典型工作电路 MAX13301:典型工作电路 Zoom icon

技术文档

支持和培训

在Maxim的知识库中搜索技术问题的答案

过滤搜索

Maxim的专业工程师团队也会为您解答相应的技术问题,请访问Maxim的 支持中心