The MAX1556AETB from Maxim Integrated is a highly integrated battery charger IC designed for charging single-cell lithium-ion (Li+) batteries. This advanced power management integrated circuit (PMIC) is optimized for portable applications, ensuring efficient and safe charging operations.

Key Features

• High Efficiency: The MAX1556AETB employs a proprietary charging algorithm that maximizes efficiency, resulting in faster charge times and reduced heat generation.
• Compact Design: Available in a tiny 10-pin TDFN (3mm x 3mm) package, this IC is ideal for space-constrained applications such as wearables, smartphones, and other portable devices.
• Integrated Power MOSFET: The inclusion of an internal power MOSFET simplifies the circuit design and reduces external component count, aiding in miniaturization and system reliability.
• Adjustable Charge Current: The charge current can be programmed up to 1.2A, allowing for flexibility in designing for various battery capacities and thermal constraints.
• Thermal Regulation: To protect the battery and circuitry, the MAX1556AETB features thermal regulation, which automatically reduces charge current when the die temperature exceeds a safe threshold.
• Charge Status Indicators: The IC includes outputs to drive LEDs or communicate with a microcontroller for charge status indication, providing user feedback and system monitoring capabilities.

Applications

The MAX1556AETB is well-suited for a wide range of applications that require efficient and compact charging solutions. These include:

• Portable Media Players
• Bluetooth Headsets
• Digital Cameras
• Handheld Devices
• Personal Health and Fitness Devices

Safety and Protection

Maxim Integrated has designed the MAX1556AETB with multiple protection features to ensure safety during operation. These include overvoltage protection, undervoltage lockout, and battery temperature monitoring, which work together to provide a secure charging environment for the end-user's device.

Overall, the MAX1556AETB stands out as a robust and versatile charging solution that simplifies the design of battery-powered devices while offering high performance and safety.