TP4054- 4.2V~6.5V Lithium-ion 1 SOT-23-5L Battery Management ROHS

TP4054 is a perfect singleÑchip constant current / constant voltage linear power management chip for lithium- ion batteries. It’ s portable and small in size Use. What’ s more, TP4054 is specially designed for USB power supply specifications. Due to the internal MOSFET structure, external resistance and blocking diode are not required in application. In high energy operation and high peripheral temperature, the thermal feedback can control the charging current to reduce the chip temperature.
The charging voltage is limited to 4. 2V and the charging current is regulated by resistance. After reaching the target charging voltage, when the charging current is reduced to I / 10 of the set value, The TP4054 will automatically end the charging process. Tp4054 can also be set in the stop working state to reduce the power supply current to WA 2 5 .
TP4054 ensures that the chip will automatically enter the protection state when the battery is connected reversely, so as to ensure that the IC will not be broken down and lead to battery self discharge accidents. Other features include: charging current monitoring, input low voltage blocking, automatic
recharging and signs of full and start charging.

Application:

• Mobile phone, PDA, MP3
• Bluetooth application

Features:

• Instantaneous withstand voltage 11 V
• The charging current can reach 500mA by programming
• No MOSFET, sensing resistor and blocking diode are required
• Full linear charging management of lithiumÑ ion battery with small size
• The constant current / constant voltage operation and thermal regulation make the battery management more effective, and there no danger of excessive heat
• Single chip lithium ion battery management from USB interface
• 4.2V preset charging vol tage with an accuracy of ± 1%
• Monitoring of charging current output
• Charging status indicator
• 1/10 charging current termination Stop work at 25 u A current
• 2.9v trickle charging threshold voltage
• Soft start limits surge current
• Battery reverse connection protection
• Manage singleÑchip lithiumÑion batteries through USB interface

Package Includes:

• 1 x TP4054- 4.2V~6.5V Lithium-ion 1 SOT-23-5L Battery Management ROHS