MAX98400B

PRODUCTION

Stereo, High-Power, Class D Amplifier

Differential Input, Power Limiting, Anticlipping, Thermal Foldback, and Excellent EMI Performance

Data Sheet (Rev. 3) Product Selection Table
Part Models
2
1ku List Price
Starting From $2.25
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Part Details

  • Wide 8V to 28V Supply Voltage Range
  • Single Supply Operation
  • Low EMI: Active Emissions Limiting
  • Clipping Limiter
  • Low Quiescent Current
  • Thermal Foldback
  • Thermal and Overcurrent Protection
MAX98400B
Stereo, High-Power, Class D Amplifier
MAX98400A, MAX98400B: Simplified Block Diagram
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Documentation

Data Sheet 1

Reliability Data 1

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Hardware Ecosystem

Parts Product Life Cycle Description
Audio Amplifiers 3
MAX9744
PRODUCTION 20W Stereo Class D Speaker Amplifier with Volume Control
MAX9737
PRODUCTION Mono 7W Class D Amplifier
MAX9768
PRODUCTION 10W Mono Class D Speaker Amplifier with Volume Control
Class-D Audio Amplifiers 1
MAX9736
PRODUCTION Mono/Stereo High-Power Class D Amplifier
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Evaluation Kits

MAX98400BEVKIT

Evaluation Kit for the MAX98400B

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Features and Benefits

  • 8V to 28V Single DC Power-Supply Operation
  • Fully Differential Inputs and Outputs
  • Drives 2x12W into 8Ω Speakers in Stereo Mode
  • Limiter Control
  • Thermal Foldback
  • Shutdown Control
  • Evaluates the MAX98400B in a 24-Pin TQFN Package with an Exposed Pad
  • U1 Configured for Filterless Output
  • U2 Configured for Filtered Output
  • Fully Assembled and Tested

Product Details

The MAX98400B evaluation kit (EV kit) configures the MAX98400B Class D amplifier to drive 2x12W into a pair of 8Ω speakers in stereo mode for audio applications. The EV kit operates from an 8V to 28V DC power supply. The EV kit has a programmable gain and the jumper settings default to a +20.1dB gain. The EV kit accepts a pair of single-ended or differential input signals and provides two sets of differential outputs for speakers.

The EV kit has two independent amplifier circuits, demonstrating direct speaker driving (for low component count) and filtered output driving (for ease of evaluation). The EV kit comes with two MAX98400BETG+ devices installed.

The EV kit provides an option to control the limiter, thermal foldback, input configuration, gain, and shutdown mode of the device. The EV kit includes convenient audio input and output connectors.

Applications

  • LCD Monitors
  • LCD/PDP Televisions
  • MP3 Docking Stations
  • Notebook PCs

MAX98400AEVKIT

Evaluation Kit for the MAX98400A

Buy Now View Details

Features and Benefits

  • 8V to 28V Single DC Power-Supply Operation
  • Fully Differential Inputs and Outputs
  • Drives 2x20W into 8Ω Speakers in Stereo Mode
  • Drives 1x40W into 4Ω Speaker in Mono Mode
  • Limiter Control
  • Thermal Foldback
  • Shutdown Control
  • Evaluates the MAX98400A in a 36-Pin TQFN Package with an Exposed Pad
  • U1 Configured for Filterless Output
  • U2 Configured for Filtered Output
  • Fully Assembled and Tested

Product Details

The MAX98400A evaluation kit (EV kit) configures the MAX98400A Class D amplifier to drive 2x20W into a pair of 8Ω speakers in stereo mode, or 1x40W into a 4Ω speaker in mono mode, for audio applications. The EV kit operates from an 8V to 28V DC power supply. The EV kit is configured for +20.1dB gain. The EV kit accepts a pair of single-ended or differential input signals and provides two sets of differential outputs for speakers.

The EV kit has two independent MAX98400A circuits, demonstrating direct speaker driving (for low component count) and filtered output driving (for ease of evaluation). The EV kit comes with two MAX98400AETX+ devices installed.

The EV kit provides an option to control the limiter, thermal foldback, input configuration, gain, shutdown, and mono mode of the MAX98400A. The EV kit also provides an input pad to accept an optional external power supply for powering the device's preamplifiers. The EV kit includes convenient audio input and output connectors.

Applications

  • LCD Monitors
  • LCD/PDP Televisions
  • MP3 Docking Stations
  • Notebook PCs
MAX98400BEVKIT
Evaluation Kit for the MAX98400B
MAX98400AEVKIT
Evaluation Kit for the MAX98400A

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