MAX77786 - Analog Devices

MAX77786 5.5A 1-Cell Li+ Battery Charger

The MAX77785/MAX77786 is a high-performance highinput 3.5/5.5A fast charger with Smart Power SelectorTM. The ICs can operate as a reverse boost converter without an additional inductor, allowing the battery to share its power through the charging port, and offer programmable output voltage from 4.505V to 10.805V. The devices feature fully integrated low-loss.

Features

• High-Efficiency Single-Cell Switching Charger
• Up to 5.5A Charging with MAX77786
• Up to 3.5A Charging with MAX77785
• 90% Buck Efficiency at 4A, 15V Input
• Up to 5.5A Input Current Limit with AICL (MAX77786)
• Up to 3.5A Input Current Limit with AICL (MAX77785)
• +26V Absolute Maximum Input Voltage Rating
• 4.7V to 18.2V Input Operating Voltage Range
• Reverse Boost with Programmable Output Voltage Options up to 10.805V
• Up to 16.2W for MAX77786
• Up to 10.8W for MAX77785
• Dedicated Boost enable input
• Integrated Battery True-Disconnect FET
• RDSON = 7.7mΩ
• Programmable Discharge Curr.