MCP73827 Datasheet
http://www.microchip.com/stellent/images/mchpsiteimages/dwnfolder.gifMCP73827 DatasheetThe MCP73827 is a battery charger controller for single cell 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 current monitor, and charge status LED indicator output. An overall system accuracy of 1% ensures that the cell capacity is fully utilized without cycle life degradation. An external resistor sets charge current.
The MCP73827 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 space-saving 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 MonitorNo
Charge Safety TimersNo
Max Thermal RegulationNo
Features
Low Power Dissipation
Shutdown Current: 0.5uA (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 Current Monitor Output
Charge Status Indicator Output
Foldback Current Limiting
–20°C to +85°C Ambient Operating Temperature Range
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