MAX98502

PRODUCTION

Boosted 2.2W Class D Amplifier with Automatic Level Control

Delivers Constant 2.2W Output Power Without Collapsing Battery

Data Sheet (Rev. 0) Product Selection Table
Viewing:

Overview

  • Boosted Class D Output
  • Integrated Automatic Level Control
  • Output Power
    • 2.2W into 8Ω, 10% THD+N
    • 1.7W into 8Ω, 1% THD+N
    • 4.1W into 4Ω, 10% THD+N
    • 3.4W into 4Ω, 1% THD+N
  • Wide 2.5V to 5.5V Supply Voltage Range
  • Undervoltage Lockout Protection
  • High Total Efficiency of 87%
  • High Step-Up Switching Frequency (2MHz)
  • Active Emission Limiting for Low EMI

The MAX98502 is a high-efficiency, Class D audio amplifier that features an integrated boost converter to deliver a constant output power over a wide range of battery supply voltages.

The boost converter operates at 2MHz, requiring only a small (2.2µH) external inductor and capacitor.

The automatic level control has a battery tracking function that reduces the output swing as the supply voltage drops, preventing collapse of battery voltage.

The amplifier has differential inputs and an internal fully differential design. The MAX98502 also features three gain settings (6dB, 15.5dB, and 20dB) that are selectable with a logic input.

The MAX98502 is available in a small, 0.5mm pitch 16-bump WLP package (2.1mm x 2.1mm). It is specified over the extended -40°C to +85°C temperature range.

Applications

  • Active Speaker Accessories
  • Cell Phones
  • GPS Devices
  • Mobile Internet Devices
  • Smartphones
MAX98502
Boosted 2.2W Class D Amplifier with Automatic Level Control
MAX98502: Simplified Block Diagram
Add to myAnalog

Add product to the Products section of myAnalog (to receive notifications), to an existing project or to a new project.

Create New Project
Ask a Question

Documentation

Data Sheet 1

Reliability Data 1

Design Note 1

Learn More
Add to myAnalog

Add media to the Resources section of myAnalog, to an existing project or to a new project.

Create New Project

Software Resources

Can't find the software or driver you need?

Request a Driver/Software

Hardware Ecosystem

Parts Product Life Cycle Description
Audio Amplifiers 1
MAX98500
Boosted 2.2W Class D Amplifier with Automatic Level Control
Modal heading
Add to myAnalog

Add product to the Products section of myAnalog (to receive notifications), to an existing project or to a new project.

Create New Project

Evaluation Kits

MAX98502EVKIT

Evaluation Kit for the MAX98502

Buy Now View Details

Features and Benefits

  • 2.5V to 5.5V Single-Supply Operation
  • 4W Mono Class D Output
  • Selectable Gain: +6dB, +15.5dB, and +20dB
  • Boosted Class D Output
  • Differential or Single-Ended Input
  • Boost Converter Shutdown
  • Speaker Output Shutdown
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Details

The MAX98502 evaluation kit (EV kit) is a fully assembled and tested circuit board that uses the MAX98502 boosted Class D amplifier to drive a mono bridge-tied-load (BTL) speaker in portable audio applications. Designed to operate from a 2.5V to 5.5V DC power supply, the EV kit is capable of delivering 2.2W into an 8Ω load or 4W into a 4Ω load. The EV kit accepts differential or single-ended input signals, features selectable gain, and separate speaker and boost shutdown inputs.

Applications

  • Active Speaker Accessories
  • Cell Phones
  • GPS Devices
  • Mobile Internet Devices
  • Smartphones
MAX98502EVKIT
Evaluation Kit for the MAX98502

Latest Discussions

No discussions on MAX98502 yet. Have something to say?

Start a Discussion on EngineerZone®

Recently Viewed