Maxim Integrated MAX1508ETA+T - High-Efficiency, Low-IQ, USB/AC Adapter Linear Battery Charger

The Maxim Integrated MAX1508ETA+T is a cutting-edge linear battery charger designed for single-cell lithium-ion (Li+) batteries. Its high efficiency and low quiescent current (IQ) make it an ideal solution for portable applications where energy efficiency is paramount. This device is specifically tailored for charging batteries from either a USB port or an AC adapter.

With an input voltage range of 4.1V to 6.3V, the MAX1508ETA+T can handle the varied outputs of USB sources and AC adapters, ensuring compatibility with a broad range of power supplies. The charger integrates a current-sense circuit, thermal regulation to protect the battery, and a charge termination feature to enhance battery life and safety.

One of the key highlights of this charger is its programmable charge current up to 500mA, which allows users to customize the charging rate based on the specific requirements of their battery and application. Additionally, the MAX1508ETA+T provides a preconditioning feature that gently charges batteries that have been deeply discharged, reviving them safely before ramping up to the full charging rate.

For safety, the MAX1508ETA+T includes an automatic recharge feature, which initiates a new charging cycle if the battery voltage falls below a certain threshold. This ensures the battery remains fully charged without overcharging. The device also boasts a charge-status output that signals whether the battery is currently being charged or if the charge is complete, which can be used to drive an external LED indicator for user-friendly status reporting.

Engineered in a tiny 8-pin TDFN package, the MAX1508ETA+T saves valuable board space and is ideal for space-constrained portable devices. It operates over a broad temperature range from -40°C to +85°C, making it suitable for use in a variety of environments.

In summary, the Maxim Integrated MAX1508ETA+T offers a compact, efficient, and versatile charging solution, perfect for modern portable electronics that require reliable battery management.