MAX9717BEUA+T

Audio Amplifiers Overview

The MAX9717BEUA+T is a mono, low-cost audio power amplifier in an 8-pin µMAX package. It operates on a single supply from 2.7V to 5.5V and delivers 1.4W continuous power into a 4Ω load with less than 1% THD at 5V. The device features internally fixed gain of 6dB, bridge-tied load (BTL) architecture, and a headphone sense input for automatic BTL/single-ended switching. Quiescent current drops to under 10nA in shutdown mode. It includes comprehensive click-and-pop suppression and operates over the -40°C to +85°C temperature range.

Audio Amplifiers Feature Summary

• Bridge-tied load (BTL) architecture minimizes external component count while delivering high-quality audio reproduction.
• Integrated headphone sense input automatically disables the BTL slave driver to drive headphones as a single-ended load when connected.
• Industry-leading click-and-pop suppression circuitry reduces audible artifacts during startup and shutdown sequences.
• Low-power shutdown mode disables bias generators and amplifiers, reducing quiescent current consumption to less than 10nA.

Audio Amplifiers Applications

• Portable audio devices with internal speakers
• Mobile phones
• Personal digital assistants (PDAs)

Audio Amplifiers Procurement Notes

Verify the specific suffix 'BEUA' corresponds to the 8-pin µMAX package with 6dB fixed gain. Confirm RoHS compliance status via the manufacturer's official documentation. Ensure the ordering code matches the required thermal pad configuration for the selected package type.

Audio Amplifiers Selection Notes

Select this part for applications requiring a fixed 6dB gain without external resistors. The MAX9717 variant is necessary if headphone jack sensing functionality is required. Consider the µMAX package for space-constrained designs where exposed pad thermal management is feasible.

Audio Amplifiers Part Context

This component belongs to the MAX9716/MAX9717 family of low-cost, mono, 1.4W BTL audio power amplifiers. The MAX9717 series specifically adds a headphone sense input compared to the MAX9716. Variants are distinguished by their fixed gain settings (6dB, 9dB, 12dB) or adjustable gain options.

Audio Amplifiers Replacement Considerations

The MAX9716 is pin-compatible but lacks the headphone sense input. Other MAX9717 variants include MAX9717CEUA+T (9dB gain) and MAX9717DEUA+T (12dB gain). Verify gain requirements before substitution.