The MCP73827-4.1VUA 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 MCP73827-4.1VUA 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.
Feature
- 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
