Описание
The MCP73114 is highly integrated Li-Ion battery charge management controllers for use in space-limited and cost-sensitive applications. The MCP73114 device provides specific charge algorithms for Li-Ion/Li-Polymer batteries to achieve optimal capacity and safety in the shortest charging time possible. Along with their small physical size, the low number of external components make the MCP73114 ideally suitable for portable applications. The absolute maximum voltage, up to 18V, allows the use of MCP73114 in harsh environments, such as low cost wall wart or voltage spikes from plug/unplug. The MCP73114 device employs a constant current/constant voltage charge algorithm. The various charging voltage regulations provide design engineers flexibility to use in different applications. The fast charge, constant current value is set with one external resistor from 130 mA to 1100 mA. The MCP73114 device limit the charge current based on die temperature during high power or high ambient conditions. This thermal regulation optimizes the charge cycle time while maintaining device reliability. The PROG pin of the MCP73114 also serves as enable pin. When high impedance is applied, the MCP73114 will be in standby mode. The MCP73114 device is fully specified over the ambient temperature range of -40°C to +85°C. They are available in a 10 lead, DFN package.
- 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 (MCP73113)
- 5.8V (MCP73114)
- High Accuracy Preset Voltage Regulation Through Full Temperature Range (-5°C to +55°C): +0.5%
- Battery Charge Voltage Options:
- 4.10V, 4.20V, 4.35V or 4.4V
- 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
- Charge Status Output – Two Style Options
- Soft start
- Temperature Range: -40°C to +85°C
- Packaging: DFN-10 (3 mm x 3 mm)
