MCP73833/4 Stand-Alone Linear Li-Ion/Li-Polymer Charge Management Controller Overview
The MCP73833/4 is a highly advanced linear charge management controller for use in space-limited, cost sensitive applications. Along with its small physical size (3 mm x 3 mm DFN package), the low number of external components required makes the MCP73833/4 ideally suitable for portable applications. For applications charging from a USB port, the MCP73833/4 can adhere to all the specifications governing the USB power bus. The MCP73833/4 employs a constant-current/constant-voltage charge algorithm with selectable preconditioning and charge termination.
The main features of MCP73833/4 include:
- Constant-Current/Constant-Voltage Operation with Thermal Regulation
- High Accuracy Preset Voltage Regulation
- Programmable Charge Current: 1A Maximum
- Complete Linear Charge Management Controller – Integrated pass transistor, current sense, reverse discharge protection
- Automatic End-of-Charge Control with Selectable Current Threshold or Safety Time Period
- Automatic Power-Down when Input Power Removed
- Automatic Recharge: No Auto-Recharge is also available
- Preconditioning of Deeply Depleted Cells
- Cell Temperature Monitor
- Two Charge Status Outputs