Maxim Integrated MAX1507ETA+T Lithium-Ion/Polymer Battery Charger

The MAX1507ETA+T from Maxim Integrated is a highly integrated and efficient solution designed for charging single-cell lithium-ion (Li+) or lithium polymer (Li-Poly) batteries. This compact, thermally-efficient charger is ideal for portable applications where space and thermal management are critical.

Featuring a proprietary charge-management algorithm, the MAX1507ETA+T ensures a fast and safe charging cycle by controlling the constant-current/constant-voltage (CC/CV) charging parameters. The device has a programmable charge current up to 1A, allowing users to customize the charging speed based on the battery's specifications and the thermal limits of their application.

With its small, 3mm x 3mm TDFN package, the MAX1507ETA+T is designed to occupy minimal board space, making it a perfect fit for space-constrained devices such as handheld instruments, Bluetooth earpieces, and wearable technology. Its high level of integration includes an internal MOSFET, reverse-blocking protection, and thermal regulation, which reduces the number of external components required and simplifies the design process.

The MAX1507ETA+T also boasts a wide input voltage range from 4.1V to 6.3V, enabling it to operate with a variety of power sources, including USB ports and wall adapters. The device ensures safety with multiple built-in protection features, including prequalification charging for deeply discharged cells, a safety timer to prevent overcharging, and temperature monitoring to prevent overheating.

Key features of the MAX1507ETA+T include:

• Adjustable charge current up to 1A
• Thermal regulation to optimize the charge rate under all conditions
• Prequalification of deeply discharged batteries
• Automatic recharge feature
• Battery temperature monitoring
• Charge status and fault condition indicators

In summary, the MAX1507ETA+T from Maxim Integrated offers a compact, efficient, and versatile charging solution for portable devices requiring single-cell Li+ or Li-Poly battery management. Its advanced features and protections ensure a safe and reliable charging experience for end-users.