MCP73833 LI-ION BATTERY
CHARGER EVALUATION BOARD
USER’S GUIDE
©
2006 Microchip Technology Inc.
DS51626A-page 7
Chapter 2. Installation and Operation
2.1
INTRODUCTION
The MCP73833 Li-Ion Battery Charger Evaluation Board demonstrates Microchip
Technology’s MCP73833/4 devices. The MCP73833/4 is a Stand-Alone Linear
Li-Ion/Li-Polymer Charge Management Controller. A number of device options allow
the MCP73833/4 to be utilized in a variety of applications. Refer to the MCP73833/4
data sheet (DS22005) for device options.
2.2
FEATURES
The MCP73833 Li-Ion Battery Charger Evaluation Board contains two evaluation
circuits for evaluation of various device options. The board has the following features
with the factory installed device (MCP73833-FCI/MF):
• Charge Voltage: 4.20V
• Programmable Fast Charge Current up to 1000 mA
• Preconditioning of deeply depleted cells
- Preconditioning Threshold Voltage: 3.0V
- Preconditioning Current: 10% of Programmed Fast Charge Current
• Automatic Charge Termination
- Charge termination by minimum current in Constant Voltage Mode
- Charge termination by safety time period: 6 hours
- Termination Current: 7.5% of Programmed Fast Charge Current
• Automatic Recharge
- Recharge Threshold Voltage: 4.05V
• Cell Temperature Monitoring
• Charge Current Monitor for Fuel Guaging
• Thermal Regulation
• Reverse Discharge Protection
• Evaluation in 3mm x 3mm, 10-Lead DFN Package for higher power handling
capability
• Simple Stand-Alone Operation
• Powered from external bench supply or voltage regulated wall cube
• Surface-Mount Design
• One Circuit Fully Assembled and Tested
