MAX77818EWZ+ MAXIM Power Management Specialized - PMIC PMIC for smart phone Industrial PCs Portable Medical DevicesWearable, Smart Watches Handheld Devices Wireless Speakers Bluetooth Headsets Smart Home Automation, Sensors Internet of Things (IoT

1.General Description
The MAX77818 integrates a high-performance 3A switchingcharger and proprietary ModelGauge™ m5 fuel gauge in a space saving WLP package, ideal for USB poweredportable devices. The smart power path charger sup-ports 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

2.Applications
●Industrial PCs
●Portable Medical Devices
●Wearable, Smart Watches
●Handheld Devices
●Wireless Speakers
●Bluetooth Headsets
●Smart Home Automation, Sensors
●Internet of Things (IoT

3.Benefits and Features
●Smart Power Path, Dual Input Switching Charger
• Up to 13.4V Operating/16V Withstand/4A (CHGIN)
• Up to 6V Operating/1.26A (WCIN)
• 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
• Accurate Battery Capacity (SOC) andTime-to-Empty Readings-Temperature, Age, and Discharge RateCompensated-No Calibration-Integrated FET Current Sensing-Maintains Accuracy without Empty, Full, or Idle States
• Low Quiescent Current (IQ)
●Two High Voltage Input LDOs
●I2C Serial Interface
●72-Bump, 3.867mm x 3.608mm, 0.4mm Pitch WLP

4.Typical Operating Circuit

Shenzhen Hongxinwei Technology Co., Ltd is located in the Bao’an District of Shenzhen.It is a high-tech enterprise setting research and development, production, sales into an integration. The company covers an area of 15 acres, having modern producing workshop and professional production and testing equipments. The company has an existing staff of more than 100 people.The company has set up offices in Shenzhen, Hongkong and Singapore providing worldwide service.