MAX9717DEBL+T

Audio Amplifiers Overview

The MAX9717DEBL+T is a mono audio power amplifier in a 9-bump UCSP package. It operates from a single 2.7V to 5.5V supply and delivers 1.4W continuous power into a 4Ω load at 1% THD+N. The device features an internally fixed gain of 12dB, reducing external component count. It includes a BTL/SE input for headphone sensing, low-power shutdown mode with less than 10nA quiescent current, and comprehensive click-and-pop suppression.

Audio Amplifiers Feature Summary

• Bridge-tied load architecture minimizes external components while providing high-quality audio reproduction
• Internal fixed gain configuration reduces required component count
• Headphone sense input automatically switches between speaker and headphone modes
• Low-power shutdown mode significantly reduces quiescent current consumption

Audio Amplifiers Applications

• Mobile phones
• PDAs
• Portable devices

Audio Amplifiers Procurement Notes

Verify the specific suffix DEBL+T against official documentation to confirm the 9-bump UCSP package and 12dB internal gain. Confirm RoHS compliance status and lead-free specifications directly from the manufacturer datasheet before procurement.

Audio Amplifiers Selection Notes

Select this part when a compact mono amplifier with fixed 12dB gain is required. The UCSP package suits space-constrained designs. Ensure the application supports single-ended inputs and utilizes the BTL/SE pin for automatic headphone detection functionality.

Audio Amplifiers Part Context

This component belongs to the MAX9716/MAX9717 family of low-cost, mono, 1.4W BTL audio power amplifiers designed for portable audio devices with internal speakers. The MAX9717 variant specifically adds a headphone sense input capability not present in the MAX9716.

Audio Amplifiers Replacement Considerations

MAX9716ETA+T

Audio Amplifiers FAQ

How does the BTL/SE input function?

Driving the BTL/SE input low enables the slave amplifier for bridge-tied load operation. Driving it high disables the slave amplifier, muting the speaker to drive headphones as a single-ended load.

What is the purpose of the BIAS pin?

The BIAS pin provides the internally generated common-mode bias voltage (VCC/2). It must be bypassed to ground with a capacitor to ensure proper click-and-pop suppression and DC bias levels.