MAX8982EWO+T

Introduction

The MAX8982EWO+T is a power management integrated circuit (PMIC) designed for use in various electronic devices. This entry provides an overview of the product, including its category, use, characteristics, package, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

• Category: Power Management IC
• Use: The MAX8982EWO+T is used to manage power distribution and battery charging in electronic devices such as smartphones, tablets, portable media players, and other handheld devices.
• Characteristics: It features high efficiency, low quiescent current, and multiple built-in protection mechanisms to ensure safe and reliable operation.
• Package: WLP-25 (Wafer-Level Package)
• Essence: The essence of MAX8982EWO+T lies in its ability to efficiently regulate power and manage battery charging in compact electronic devices.
• Packaging/Quantity: The MAX8982EWO+T is typically supplied in tape and reel packaging with a specific quantity per reel.

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: Programmable from 0.6V to 3.3V
• Maximum Output Current: Up to 1.2A
• Operating Temperature Range: -40°C to +85°C
• Integrated Features: Battery charger, voltage regulators, power switches, and protection circuits

Detailed Pin Configuration

The MAX8982EWO+T features a 25-pin wafer-level package with specific pin assignments for input voltage, output voltage, ground, control signals, and communication interfaces. A detailed pinout diagram can be found in the product datasheet.

Functional Features

• Power Management: The MAX8982EWO+T integrates multiple power management functions, including voltage regulation and power switching, to efficiently distribute power within the device.
• Battery Charging: It incorporates a battery charging circuit with support for various battery chemistries and charging profiles, ensuring optimal battery performance and longevity.
• Protection Mechanisms: The PMIC includes built-in protection features such as overvoltage protection, undervoltage lockout, and thermal shutdown to safeguard the device and its components.

Advantages and Disadvantages

• Advantages:
  • High efficiency power management
  • Comprehensive battery charging capabilities
  • Compact wafer-level package
  • Built-in protection features
• Disadvantages:
  • Limited maximum output current compared to some competing products
  • May require external components for certain applications

Working Principles

The MAX8982EWO+T operates by receiving input power from a voltage source, regulating it to the required levels for different components within the device, and managing the charging of the connected battery. It utilizes internal control logic and feedback mechanisms to maintain stable output voltages and currents while ensuring the safety of the device and its power sources.

Detailed Application Field Plans

The MAX8982EWO+T is well-suited for integration into a wide range of portable electronic devices, including but not limited to: - Smartphones - Tablets - Portable media players - Handheld gaming devices - Wearable electronics

Its compact form factor, efficient power management, and battery charging capabilities make it an ideal choice for applications where space and power efficiency are critical.

Detailed and Complete Alternative Models

• MAX77827: A similar PMIC with enhanced power delivery capabilities
• BQ25895: Texas Instruments' battery charger IC with integrated power management functions
• BD71847AMWV: ROHM's power management IC designed for portable devices

These alternative models offer varying features and performance characteristics, providing options for designers based on specific application requirements.

In conclusion, the MAX8982EWO+T is a versatile power management IC suitable for a wide range of portable electronic devices, offering efficient power regulation, comprehensive battery charging capabilities, and built-in protection features.

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