Maxim Integrated MAX1810ESA USB-Powered Li+ Battery Chargers

The MAX1810ESA from Maxim Integrated is a compact and efficient solution designed to charge single-cell lithium-ion (Li+) batteries from a USB power source. This integrated circuit provides a seamless charging experience for a wide range of portable devices, ensuring that your electronics are powered up and ready to go whenever you need them.

The MAX1810ESA offers a simple yet powerful charging mechanism, which is fully compliant with the USB specification. It is capable of operating from either the USB port's power or an external supply connected to the IN pin, with the ability to automatically transition between power sources without interruption. The flexibility of the MAX1810ESA makes it an ideal choice for portable applications where USB charging is a convenient option.

One of the key features of the MAX1810ESA is its ability to provide a constant current/constant voltage charge algorithm, which is the preferred method for charging Li+ batteries. The constant current mode delivers up to 500mA to rapidly charge the battery, while the constant voltage mode tops off the charge by carefully controlling the voltage to the battery, ensuring maximum capacity and longevity.

The MAX1810ESA also includes a variety of safety features to protect both the charger and the battery. These features include thermal regulation to prevent overheating, under-voltage lockout to ensure the battery is not drained too far, and automatic charge termination when the battery is full. Additionally, the device has a status output that can be used to indicate charging activity, which is useful for providing visual feedback to the user.

Encased in an 8-pin SO package, the MAX1810ESA is designed for space-sensitive applications. It requires minimal external components, which simplifies the design and reduces the overall footprint on the PCB. This makes it an excellent choice for portable electronics, such as smartphones, tablets, digital cameras, and other USB-chargeable devices that require a reliable and efficient charging solution.

With its ease of integration, robust safety features, and compliance with USB power specifications, the MAX1810ESA from Maxim Integrated is a top-tier choice for designers looking to implement a USB-powered charging system in their Li+ battery-powered products.