Maxim Integrated MAX8844ZETD+T Battery Charger

The Maxim Integrated MAX8844ZETD+T is a high-performance, single-cell, Li+ battery charger integrated circuit (IC) designed to provide efficient and safe charging for portable devices. This compact and versatile charger is ideal for space-constrained applications such as smartphones, Bluetooth headsets, portable media players, and other handheld devices.

The MAX8844ZETD+T operates over a wide input voltage range and is capable of handling up to 1A charge current, which makes it suitable for fast charging needs. Its charge voltage accuracy is tightly regulated to within ±0.75%, ensuring the battery is charged precisely to its peak capacity without overcharging, thereby extending the battery's lifespan.

One of the key features of this charger IC is its automatic power-source selection. It can seamlessly transition between USB and AC adapter sources without interrupting the charging process. This means users can switch power sources without affecting the device's operation, providing greater convenience and flexibility.

The MAX8844ZETD+T also includes a variety of safety features to protect both the battery and the device. It incorporates thermal regulation to prevent overheating during fast charging, and a safety timer to terminate charging if the battery does not reach full charge within a specified time. Additionally, it offers undervoltage lockout (UVLO), overvoltage protection (OVP), and battery temperature monitoring, which further ensures safe charging under various conditions.

Designed with a tiny 3mm x 3mm TDFN package, the MAX8844ZETD+T saves valuable board space and allows for slimmer product designs. Its high integration level minimizes the need for external components, simplifying the design and reducing overall system cost.

Overall, the Maxim Integrated MAX8844ZETD+T is a reliable and efficient solution for charging single-cell Li+ batteries. It combines fast charging capabilities with comprehensive safety features, all in a small footprint, making it an excellent choice for designers looking to enhance the charging experience in their portable electronic products.