Maxim Integrated MAX14640ETA+T High-Efficiency Battery Charger

The Maxim Integrated MAX14640ETA+T is a cutting-edge battery charger designed for optimal performance and efficiency. This compact, high-frequency, switch-mode charger is engineered to charge a single-cell Li+ battery with precision and safety. It is an ideal choice for portable applications due to its small size and high efficiency.

With an input voltage range of 4.1V to 6.3V, the MAX14640ETA+T can accommodate a variety of power sources, including AC adapters and USB ports. Its charge current is programmable up to 1.2A through an external resistor, allowing for customization based on the specific needs of the application and the battery's specifications.

The device features a Smart Power Selector™ that seamlessly manages power distribution between the battery, the system load, and the input source. This ensures that the system remains operational even when the input power is limited or removed. The MAX14640ETA+T also incorporates a battery temperature monitoring feature for added safety, which suspends charging if the battery temperature goes outside the predefined safe range.

Maxim Integrated has equipped the MAX14640ETA+T with a variety of safety features to protect both the battery and the system. These include overvoltage protection, thermal regulation to prevent overheating, and a safety timer that prevents overcharging. Additionally, the charger has a preconditioning feature for deeply discharged batteries and an automatic termination upon charge completion.

The MAX14640ETA+T comes in a tiny, lead-free, 8-pin TDFN package with a 2mm x 2mm footprint, making it an excellent choice for space-constrained applications. It operates over a -40°C to +85°C temperature range, ensuring reliability and performance under varying environmental conditions.

Overall, the Maxim Integrated MAX14640ETA+T battery charger offers an efficient and secure charging solution for today's portable devices, providing designers with a versatile and dependable option for their power management needs.