Maxim Integrated MAX8909CETM+ Overview

The MAX8909CETM+ is a high-performance, dual-input, USB/AC adapter linear battery charger designed by Maxim Integrated for space-limited applications. This compact and efficient charging solution is ideal for portable electronics such as smartphones, tablets, digital cameras, and other USB-powered gadgets.

Key Features

• Adaptive Charging: The MAX8909CETM+ intelligently adapts to the connected power source, whether it's a USB port or an AC adapter, ensuring optimal charging efficiency and battery life.
• Automatic Power Source Selection: With the ability to automatically select between USB and AC adapter power sources, this charger simplifies the charging process for the end-user.
• Dual-Mode Operation: The device supports both USB 2.0 and USB 3.0 power specifications, making it versatile for use with various USB standards.
• High Charging Current: Capable of delivering up to 1.55A of charging current, the MAX8909CETM+ ensures quick and efficient charging for devices with high-capacity batteries.
• Thermal Regulation: To protect against overheating, the charger includes a thermal regulation feature that automatically adjusts the charge current based on the device's temperature.
• Charge Status Indicators: Integrated status outputs allow for easy monitoring of the charging process, providing visual feedback via external LEDs.
• Protection Features: The MAX8909CETM+ is equipped with multiple protection features, including overvoltage protection, overcharge protection, and a battery temperature monitor to ensure safe charging operations.

Applications

The MAX8909CETM+ is suitable for a wide range of portable devices that require efficient and safe charging. It is particularly beneficial for devices with limited PCB space due to its compact TQFN package.

Technical Specifications

• Input Voltage Range: 4.1V to 6.3V
• Output Current: Up to 1.55A
• Package Type: 28-Pin TQFN
• Operating Temperature Range: -40°C to +85°C

Designed with the needs of modern portable devices in mind, the Maxim Integrated MAX8909CETM+ offers a reliable and versatile charging solution that enhances the user experience with its adaptive and protective features.