500 mA USB Compatible Single Cell Li-Lon Linear Charger with “Power Back” Capability

   The FAN5120 is a small, low−cost, fully integrated single−cell charger which supports dead battery revival, pre−charge, fast charge, and float charge states.
   Fast charging current (IFAST) is set with an external resistor. Pre−charge (IPRE) and charge complete (ICHGEND) currents are factory set at IFAST/5.2 and IFAST/10, respectively.
   The FAN54120 is specifically designed for ease−of−use as a stand−alone charger. It requires no user interaction or active supervision.

FEATUREs
• Fully Integrated Charger for Single Cell Li−Ion or Li−Polymer
   Batteries
• Factory Configured Charge Voltage (Ordering Option)
• ±0.5% Charge Voltage Accuracy
• User Determined Fast Charge Current Via External Resistor
• +4% Charge Current Accuracy
• 28 V Maximum Input Voltage, 6 V Operating
• Ultra−low Battery Discharge Current (<120 nA)
• True Reverse Current Blocking
• Adaptive Thermal Regulation
• Supports JEITA Safe−to−Charge Operation with an External NTC
• “Power Back Functionality to Power Accessories from the Battery

APPLICATION
• IoT Devices
• E−Cigs / Vapes
• Personal Mobile Devices (Games, Camera, etc.)
• Toys
• Point−of−Sale Instruments