Microchip | MCP73123-22SI/MF

The MCP73123-22SI/MF is a highly integrated Lithium Iron Phosphate(LiFePO4) battery charge management controller for use in space-limited and cost-sensitive applications. Available in surface mount DFN-10 package.

Features:

• Complete Linear Charge Management Controller:
• Integrated Input Overvoltage Protection
• Integrated Pass Transistor
• Integrated Current Sense
• Integrated Reverse Discharge Protection
• Constant Current / Constant Voltage Operation with Thermal Regulation
• 4.15V Undervoltage Lockout (UVLO)
• 18V Absolute Maximum Input with OVP:6.5V - MCP73123
• High Accuracy Preset Voltage Regulation
• Through Full Temperature Range (-5°C to +55°C): ±0.5%
• Battery Charge Voltage Options:3.6V
• Resistor Programmable Fast Charge Current: 130 mA - 1100 mA
• Preconditioning of Deeply Depleted Cells:
• Available Options: 10% or Disable
• Integrated Precondition Timer: 32 Minutes or Disable
• Automatic End-of-Charge Control:
• Selectable Minimum Current Ratio: 5%, 7.5%, 10% or 20%
• Elapse Safety Timer: 4 HR, 6 HR, 8 HR or Disable
• Automatic Recharge:
• Available Options: 95% or Disable
• Factory Preset Charge Status Output: On/Off or Flashing
• Soft Start
• Temperature Range: -40°C to +85°C

Applications:

• Low-Cost LiFePO4 Battery Chargers
• Power Tools
• Toys