The MCP73828-4.1VUA 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 MCP73828-4.1VUA 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 small 8-Pin MSOP.
Feature
- 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
