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4-Channel, Automotive Class D Audio Amplifier

Industry's Only 6V, Quad 50W, Class D Audio Amp with Exceptional THD (0.05%)

Product Details

Key Features

Simplified Block Diagram

Technical Docs

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Sampling:
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Key Features

  • High Output Power (10% THD+N)
    • 2 x 100W into 1Ω at 14.4V
    • 4 x 50W into 2Ω at 14.4V
    • 4 x 30W into 4Ω at 14.4V
  • 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
  • 100dB 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

Applications/Uses

  • Active Loudspeaker Systems
  • Car Stereo
  • Discrete Amplifier Modules
  • Mobile Surround Systems
  • Radio Head Units
  • Rear-Seat Entertainment Units

Description

The MAX13300/MAX13302 combine four high-efficiency Class D amplifiers with integrated diagnostic hardware for reliable automotive audio systems. The MAX13300/ MAX13302 deliver up to 50W at 10% THD+N per channel into 2Ω when operating from a 14.4V 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 devices are programmable to four different I²C addresses.

The audio amplifiers feature single-ended analog inputs with a common negative input. Three gain settings are internally adjustable through the I²C interface to 13dB, 21.6dB, and 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. All the devices provide 50V load-dump protection, and are offered in the thermally enhanced, 48-pin TSSOP-EPR package operating over the -40°C to +125°C temperature range.

Simplified Block Diagram

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.