DESCRIPTION
●The LTC® 4065L is a complete constant-current/constant voltage linear charger for single-cell lithium-ion batteries. Its small size and ability to accurately regulate low charge currents make the LTC4065L especially well-suited for portable applications using low capacity rechargeable lithium-ion cells. Furthermore, LTC4065L is specifically designed to work within USB power specifications.
●FEATURES
●Charge Current Programmable up to 250mA with 5% Accuracy
●Complete Linear Charger in 2mm ×2mm DFN Package
●C/10 Charge Current Detection Output
●Timer Termination
●No External MOSFET, Sense Resistor or Blocking Diode Required
●Preset Float Voltage with 0.6% Accuracy:
● 4.2V for LTC4065L/LTC4065LX
● 4.1V for LTC4065L-4.1
●Constant-Current/Constant-Voltage Operation with Thermal Feedback to Maximize Charging Rate Without Risk of Overheating
●Charge Current Monitor Output for Gas Gauging
●Automatic Recharge
●Charges Single Cell Li-Ion Batteries Directly from USB Port
●20μA Supply Current in Shutdown Mode
●Available Without Trickle Charge (LTC4065LX)
●Tiny 6-Lead (2mm ×2mm) DFN Package
●APPLICATIONS
●Charger for Li-Ion Coin Cell Batteries
●Portable MP3 Players, Wireless Headsets
●Bluetooth Applications
●nMultifunction Wristwatches
