Maxim Integrated MAX8845XETC+ Battery Charger IC

The Maxim Integrated MAX8845XETC+ is a highly integrated and efficient battery charger IC designed to cater to the demanding needs of modern portable devices. This sophisticated chip is engineered to provide safe and fast charging for single-cell lithium-ion (Li+) batteries, making it an ideal solution for a wide range of applications including smartphones, tablets, digital cameras, and other USB-powered gadgets.

Key Features

• Adaptive Charging: The MAX8845XETC+ features an adaptive charge-sequence technology that optimizes the charging process for speed and battery health. It automatically transitions between pre-charge, fast-charge, and top-off phases to ensure the battery is charged efficiently and safely.
• High Efficiency: With an integrated DC-DC converter, the device achieves high charging efficiency, reducing heat generation and improving the overall performance of the charging system.
• Thermal Regulation: To protect the battery and circuitry, the MAX8845XETC+ includes a thermal regulation feature that reduces charge current if an excessive temperature rise is detected.
• USB Compliance: The chip supports USB 2.0 and 3.0 specifications for charging, meaning it can adapt to the connected USB port's power capability, whether it's from a computer or a wall charger.
• Smart Power Selector: This feature allows the device to seamlessly switch between charging the battery and powering the system load, ensuring uninterrupted operation of the host device even when the battery is low.

Protection Features

• Overvoltage Protection: The MAX8845XETC+ provides overvoltage protection to prevent damage to the battery from excessive input voltage.
• Charge Safety Timer: An integrated timer automatically terminates charging if the designated charge time is exceeded, enhancing safety.
• Battery Temperature Monitoring: The device includes a feature to monitor the battery temperature during charging, preventing charging if the battery temperature is outside the safe operating range.

The MAX8845XETC+ comes in a compact, 12-pin, 3mm x 3mm TDFN package, making it suitable for space-constrained applications. Its advanced features, coupled with Maxim Integrated's reputation for quality and reliability, make it an excellent choice for designers looking to incorporate a robust charging solution in their portable devices.