MCP73828 Datasheet
http://www.microchip.com/stellent/images/mchpsiteimages/dwnfolder.gifMCP73828 DatasheetThe MCP73828 is a battery charger controller for single cell Lithium-Ion (Li-Ion) batteries. Using an external PMOS transistor, safe and fast charging of a single Li-Ion cell is accomplished. Features include, over-current foldback, charge complete output, and continuous temperature monitor. An overall system accuracy of 1% ensures that the cell capacity is fully utilized without cycle life degradation. An external resistor can set charge current.
The MCP73828 operates with an input voltage range from 4.5V to 5.5V. It is specified over the ambient operating temperature range of -20°C to +85°C and is available in a small 8-Pin MSOP.
Parameter NameValue
Linear ModeYes
# of Cells1
Int/Ext FETExt
Vcc Range (V)4.5 to 5.5
Voltage Regulation Accuracy (%)1
Temperature MonitorYes
Charge Safety TimersNo
Max Thermal RegulationNo
Features
Low Power Dissipation
Shutdown Current: 0.7uA (Typical)
No Inductor Required
1 % Overall System Accuracy
Automatic Cell Preconditioning of Deeply Depleted Cells
Programmable Charge Current
Automatic Power-Down When Input Power Removed
Charge Complete Output
Continuous Temperature Monitor
Foldback Current Limiting
-20°C to +85°C Ambient Operating Temperature Range
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