MAX13301AUM/V+T

Audio Amplifiers Overview

The MAX13301AUM/V+T is a four-channel automotive Class D audio amplifier featuring integrated diagnostics and output protection. It delivers up to 80W per channel at 10% THD+N into 4Ω or 160W per channel in parallel mode into 2Ω, operating from a 6V to 25.5V supply. The device includes feedback after the filter for improved THD+N and low output impedance. It supports a programmable I²C interface with four addresses, on-board diagnostics for shorts and thermal overload, and spread-spectrum modulation for EMI reduction. Operating temperature range is -40°C to +125°C.

Audio Amplifiers Feature Summary

• Four high-efficiency Class D amplifiers with integrated diagnostic hardware for reliable automotive audio systems
• Feedback after the filter improves THD+N, provides low output impedance, and enables the use of low-cost inductors
• On-board diagnostics evaluate output impedance to check for shorts across outputs, to the battery, or to ground
• Spread-spectrum modulation flattens wideband spectral components to improve EMI emissions

Audio Amplifiers Applications

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

Audio Amplifiers Procurement Notes

Verify the specific suffix 'V' indicates automotive qualification and '+' denotes lead-free/RoHS compliance. Confirm the package type matches the 48-pin TSSOP-EPR with top side exposed pad. Ensure the ordering information aligns with the required supply voltage range and operational temperature specifications for your application.

Audio Amplifiers Selection Notes

Select this component when high power density and integrated diagnostics are required for automotive audio applications. Consider the fixed gain of 26dB and single-ended analog inputs with a common negative input. Evaluate the need for parallel channel configuration if higher power per channel is necessary. Verify compatibility with the I²C control interface for system integration.

Audio Amplifiers Part Context

This part belongs to the MAX13301 family of automotive Class D audio amplifiers. It is designed specifically for demanding automotive environments, offering robust protection features such as 50V load-dump protection and thermal overload protection. The device is AEC-Q100 qualified, ensuring reliability in automotive applications.

Audio Amplifiers Replacement Considerations

Check for direct pin-to-pin replacements within the MAX13301 series that may offer different packaging or slight parameter variations. Verify that any substitute maintains the same 48-pin TSSOP-EPR footprint and thermal characteristics. Ensure the replacement supports the required automotive qualification standards and diagnostic features.

Audio Amplifiers FAQ

How does the MAX13301 handle EMI?

The device features spread-spectrum modulation which flattens wideband spectral components, improving EMI emissions radiated by speaker cables.

What diagnostic features are included?

It includes short-to-battery/ground detection, open/shorted load detection, tweeter detect, programmable clip detection, DC offset detection, and thermal warning/shutdown indications.