MAX9717BEUA+

Audio Amplifiers Overview

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

Audio Amplifiers Feature Summary

• Bridge-tied load architecture minimizes external component count while providing high-quality audio reproduction.
• Headphone sense input automatically disables the slave driver to mute the speaker when headphones are connected.
• Comprehensive click-and-pop suppression reduces audible artifacts during startup and shutdown sequences.
• Low-power shutdown mode disables bias generators and amplifiers to minimize quiescent current consumption.

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 lead-free status via RoHS compliance documentation. Ensure the ordering code matches the exact thermal pad configuration required for your PCB layout. Cross-reference the manufacturer's latest selector guide to confirm availability and pinout compatibility.

Audio Amplifiers Selection Notes

Select this part for applications requiring a fixed 6dB gain without external resistors. The integrated headphone sense simplifies designs needing automatic speaker muting. Consider the µMAX package for space-constrained boards where exposed pad thermal management is feasible. Verify that the 1.4W output capability aligns with the target speaker impedance and supply voltage constraints.

Audio Amplifiers Part Context

This component belongs to the MAX9716/MAX9717 family of low-cost, mono, 1.4W BTL audio power amplifiers. The MAX9717 variants specifically include a headphone sense input, distinguishing them from the MAX9716. The BE suffix indicates a fixed 6dB gain configuration, while the UA suffix denotes the 8-pin µMAX package type.

Audio Amplifiers Replacement Considerations

The MAX9716EUA+ is pin-compatible but lacks the headphone sense feature and has adjustable gain. The LM4890 is also pin-compatible but may require different external component values due to gain configuration differences. Verify functional equivalence regarding the BTL/SE control logic before substitution.