LP28057A 1A Standalone Linear Li-Ion Battery Charger
■The LP28057A is a complete constant-current/constant-voltage linear charger for single cell lithium-ion batteries. Its ESOP8 package and low external component count make the LP28057A ideally suited for portable applications. Furthermore, the LP28057A is specifically designed to work within USB power specifications. No external sense resistor is needed, and no blocking diode is required due to the internal MOSFET architecture. Thermal feedback regulates the charge current to limit the die temperature during high power operation or high ambient temperature. The charge voltage is fixed at 4.2V, and the charge current can be programmed externally with a single resistor. The LP28057A automatically terminates the charge cycle when the charge current drops to 1C/10th the programmed value after the final float voltage is reached. When the input supply (wall adapter or USB supply) is removed, the LP28057A automatically enters a low current state, dropping the battery drain current to less than 1μA. Other features include charge current monitor, automatic recharge and a status pin to indicate charge termination and the presence of an input voltage.
●Features
■Protection of Reverse Connection of Battery
■Programmable Charge Current Up to 1000mA
■No MOSFET, Sense Resistor or Blocking Diode Required
■Constant-Current/Constant-Voltage Operation with Thermal Regulation to Maximize Charge Rate Without Risk of Overheating
■1μA Supply Current in Shutdown
■Drainage Charge Current Thermal Regulation Status Outputs for LED or System Interface
■Indicates Charge and Full
■Optional Battery Temperature Monitoring Before and During Charge Automatic Sleep Mode for Low-Power
■Consumption Available in ESOP-8 Package
■RoHS Compliant and 100% Lead (Pb)-Free
|
Standalone Linear Li-Ion Battery Charger 、 complete constant-current/constant-voltage linear charger |
|
|
[ single cell lithium-ion batteries ][ Portable Media Players ][ MP3 players ][ Cellular ][ Smart mobile phone ][ PDA ][ DSC ][ Bluetooth Applications ] |
|
|
Datasheet |
|
|
|
|
Please see the document for details |
|
|
|
|
|
|
|
|
ESOP-8 |
|
|
English Chinese Chinese and English Japanese |
|
|
Jan.-2019 |
|
|
|
|
|
|
|
|
668 KB |
- +1 Like
- Add to Favorites
Recommend
- 2.7A Synchronous Boost DC-DC Convertor Features Up to 95% Efficiency
- Constant-current/constant-voltage Linear Charger for Single Cell Lithiumion Batteries Suitable for Portable Applications
- 140mW Headphone Amplifier with Unity-gain Stable
- 1A Dual Channel Charge Pump Power Solution For TFT LCD Panel
- 5V, Differential Input, DirectDrive, 215mW Stereo Headphone Amplifiers with Shutdown
- Enhancement Power MOSFET Integrating Two P-channel Enhancement Mosfet Transistor
- 需要充电吗？具有开尔文源引脚的SiC MOSFET DIF120SIC053-AQ加速电动汽车充电过程
All reproduced articles on this site are for the purpose of conveying more information and clearly indicate the source. If media or individuals who do not want to be reproduced can contact us, which will be deleted.
Integrated Circuits
Discrete Components
Connectors & Structural Components
Assembly UnitModules & Accessories
Power Supplies & Power Modules
Electronic Materials
Instrumentation & Test Kit
Electrical Tools & Materials
Mechatronics
Processing & Customization
