TP4065-4.2V-SOT235

The TP4065 is a complete linear charger for single cell lithium-ion batteries. The charge current can range from 3mA to 600mA, and it includes trickle, constant-current and constant-voltage. Its SOT23-5 package and low external component count make the TP4065 ideally suited for portable applications. Furthermore, the TP4065 can work within USB and wall adapter. Thermal feedback regulates the charge current to limit the die temperature during high power operation or high ambient temperature. The charge voltage can be divided 4.2 V, and the charge current can be programmed externally with a single resistor. The TP4065 automatically terminates the charge cycle when the charge current drops to 1/10th the programmed value after the final float voltage reaching. When the input supply (wall adapter or USB supply) is removed, the TP4065 automatically enters a low current state, dropping the battery drain current to less than 1uA. The TP4065 can be put into shut down mode, reducing the supply current to 75uA. Other features include under voltage lockout, automatic recharge and one status pins to indicate charge termination.

Applications

• Miniature lithium battery
• Cellular phone、PAD、MP3 player

Key features

• Programmable Charge Current range from 3mA to 600mA
• VCC input reverse connect protection
• Lithium-ion batteries Reverse battery protection
• Maximize Charge Rate Without Risk of Overheating
• For Single Cell titanic acid Lithium-Ion Batteries
• Trickle, constant-current and constant-voltage control
• Charges Single Cell Li-Ion Batteries Directly from USB Port
• Preset Charge Voltage with 1% Accuracy
• Highest input can be up to 8V
• Automatic Recharge
• One Charge Status Output Pins
• C/10 Charge Termination
• 75uA Supply Current in Shutdown
• Available in 5-Lead SOT-23 Package