Maxim Integrated MAX8845YETC Battery Charger IC

The Maxim Integrated MAX8845YETC is a highly integrated power management IC designed specifically for charging single-cell lithium-ion (Li+) batteries. Its compact design and advanced features make it an ideal choice for portable applications where space is at a premium and efficient charging is essential.

This sophisticated battery charger IC offers a programmable charging current up to 1A, which allows for fast and efficient charging of the battery, minimizing the time devices spend tethered to a charging source. The MAX8845YETC operates over a wide input voltage range and is compatible with a variety of power sources, including USB ports and AC adapters, providing versatile charging solutions for a range of devices.

One of the key features of the MAX8845YETC is its ability to automatically detect the power source and select the appropriate charging current, ensuring safe and optimal charging regardless of the power input. It also incorporates a charge timer and thermistor input for temperature monitoring, adding an extra layer of safety to prevent overcharging and overheating, which can extend the life of the battery.

The device includes a variety of safety features, such as overvoltage protection, which safeguards the battery and the device from excessive input voltage. Additionally, the MAX8845YETC has a preconditioning feature that gently charges deeply discharged batteries, helping to restore them to a normal operating condition before applying the full charging current.

Status indicators in the form of open-drain outputs provide visual feedback on the charging state, indicating whether the battery is precharging, fast charging, fully charged, or if a fault has occurred. This allows for easy monitoring and troubleshooting, ensuring a user-friendly experience.

The MAX8845YETC is available in a tiny, lead-free, 12-pin TQFN package, making it an excellent choice for space-constrained applications such as smartphones, Bluetooth headsets, portable media players, and other handheld devices. Its high level of integration and comprehensive feature set make it a reliable and efficient solution for modern battery charging requirements.