DESCRIPTION
The LTC®4124 is a simple high performance wireless Li-Ion charger with low battery disconnect. The pin-selectable charge current (up to 100mA) and charge voltage ensure versatility while minimizing the number of required external components.

FEATURES
■ Complete Wireless Power Receiver, Li-Ion Charger
   and PowerPath™ Controller
■ Wireless Input Power Control and Rectification
■ Wideband Wireless Power Frequency: DC to >10MHz
■ Pin-Selectable Charge Current:
   10mA/25mA/50mA/100mA
■ Pin-Selectable Charge Voltage: 4.0V/4.1V/4.2V/4.35V
■ Pin-Selectable Low Battery Disconnect: 2.7V/3.2V
■ Zero Battery Drain Current in Disconnect/Ship Mode
■ Pin-Selectable Low Battery Pre-Charge Current Enable
■ NTC Input for Temperature Qualified Charging
■ Safety Charge Termination Timer
■ Tiny Total Solution Size with Few Externals
■ Small Thermally Enhanced 12-lead
   2mm × 2mm LQFN Package

APPLICATIONS
■ Medical Wireless Sensors
■ Military Wearables
■ High End Wireless Headsets
■ Streaming Headsets with Bluetooth Connectivity
■ Virtual Reality Headsets
■ High End Remote Control
■ IoT Devices