MAX9718DEBL+

Audio Amplifiers Overview

The MAX9718DEBL+ is a mono audio power amplifier from the Maxim Integrated MAX9718/MAX9719 series. It operates on a single supply voltage ranging from 2.7V to 5.5V and delivers 1.4W of continuous average power per channel into a 4Ω load with less than 1% THD+N. The device utilizes a bridge-tied load (BTL) architecture for high-quality amplification while minimizing external component count. It features differential inputs, internally fixed gain options, and a low-power shutdown mode that reduces quiescent current to under 100nA.

Audio Amplifiers Feature Summary

• Bridge-tied load (BTL) architecture minimizes external components while delivering high-quality audio amplification
• Industry-leading click-and-pop suppression circuitry eliminates audible noise during startup and shutdown
• Low-power shutdown mode reduces quiescent current consumption to less than 100nA
• Differential input structure improves noise rejection and provides common-mode rejection

Audio Amplifiers Applications

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

Audio Amplifiers Procurement Notes

Verify the specific ordering suffix DEBL against the manufacturer's official selector guide to confirm package type, temperature range, and gain configuration. Ensure compatibility with existing PCB footprints and thermal requirements. Confirm RoHS compliance status through the latest datasheet documentation before finalizing procurement specifications.

Audio Amplifiers Selection Notes

Select this component for portable applications requiring high efficiency and minimal external parts. The BTL configuration allows driving speakers directly without output coupling capacitors. Consider the fixed gain variant to simplify design and reduce footprint. Verify thermal dissipation capabilities relative to the ambient operating conditions and load impedance.

Audio Amplifiers Part Context

This part belongs to the MAX9718/MAX9719 family of low-cost, mono/stereo audio power amplifiers designed for portable devices. The MAX9718 serves as the mono version, while the MAX9719 is the stereo counterpart. Both share similar electrical characteristics and packaging options, offering flexible gain configurations and robust protection features for battery-powered systems.

Audio Amplifiers Replacement Considerations

The MAX9718 is pin-compatible with the LM4895. Verify functional equivalence and pin mapping before substitution. Ensure the replacement supports the required supply voltage range and thermal performance.