Microchip MCP73xx Charge Management Controllers
The Microchip Technology MCP73xx charge management controller family enhances the safety and efficiency of battery-powered applications by providing overvoltage protection, high-accuracy voltage regulation, and an integrated pass transistor. The Microchip Technology MCP73xx family provides specific charge algorithms for Li-Ion/Li-Polymer and LiFePO4 batteries to achieve optimal capacity and safety in the shortest charging time possible. These Microchip Technology charge management controllers have a maximum input voltage of 18V and come with an OVP set point of 5.8V and 6.5V for the single-cell MCP73113 and MCP7314 and an OVP set point of 13V for the dual-cell MCP73213 and MCP73123. These battery charge management devices also offer a variety of charging-voltage options for both Li-Ion and LiFePO4 batteries.
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View Product List MCP73xx Evaluation Tools
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Microchip MCP73xx 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
- 13V - MCP73223
- 6.5V - MCP73113
- 5.8V - MCP73114
- High Accuracy Preset Voltage Regulation Through Full Temperature Range (-5°C to +55°C):
- + 0.5% - MCP73123/MCP73113/MCP73114
- + 0.6% - MCP73223
- Battery Charge Voltage Options:
- 3.6, 4.10V, 4.20V, 4.35V or 4.4V, 7.2
- 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 Options: 95% or Disable
- Factory Preset Charge Status Output: On/Off or Flashing
- Soft start
- Temperature Range: -40°C to +85°C
- Packaging: DFN-10 (3 mm x 3 mm)
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Microchip MCP73xx Applications
- Low-Cost LiFePO4 Battery Chargers
- Low-Cost Li-Ion/Li-Poly Battery Chargers
- Power Tools
- Toys
- MP3 Players
- Digital Still Camera
- Portable Media Players
- Handheld Devices
- Bluetooth Headsets
- USB Chargers
Microchip MCP73xx Example Circuit
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