Portable battery charger MAX77818 series

plug-inlithiumsmart

The MAX77818 integrates a high-performance 3A switching charger and proprietary ModelGauge™ m5 fuel gauge in a space saving WLP package, ideal for USB powered portable devices. The smart power path charger supports two inputs with reverse blocking and USB On-the-Go (OTG), integrates all power switches, operates at high-switching frequency with high efficiency, enabling low heat designs with small external components. The ModelGauge m5 algorithm combines the excellent short-term accuracy and linearity of a coulomb counter with the long-term stability of a voltage-based fuel gauge, along with temperature compensation to provide industry-leading fuel-gauge accuracy. The device also integrates two high voltage input LDOs and is highly programmable with I2C interface. Applications Bluetooth Headsets Handheld Devices Industrial PCs Internet of Things (IoT) Portable Medical Devices Smart Home Automation, Sensor Wearable, Smart Watches Wireless Speakers Features and Benefits Smart Power Path, Dual Input Switching Charger Reverse Leakage Blocking Reverse Boost with up to 5.1V/1.5A (OTG) Integrated Low-Loss FETs for 3A Charging/4.5A Discharging 95.6% Peak Efficiency at 5V/4.35V Full Feature Charger with Protection Thermal Regulation and JEITA Compliance ModelGauge m5 Fuel Gauge Time-to-Empty and Time-to-Full Prediction