MCP73871

The MCP73871 device is a 1A fully integrated linear solution for system load sharing and Li-Ion / Li-Polymer battery charge management with AC-DC wall adapter and USB port power sources selection. It’s also capable of autonomous power source selection between input or battery. The MCP73871 device employs a constant current/constant voltage (CC/CV) charge algorithm with selectable charge termination point. The constant voltage regulation is fixed with four available options: 4.10V, 4.20V, 4.35V, or 4.40V.

Features
  • Integrated System Load Sharing and Battery Charge Management
  • Simultaneously Power the System and Charge the Li-Ion Battery
  • Integrated Pass Transistors
  • Integrated Current Sense
  • Integrated Reverse Discharge Protection
  • Selectable Input Power Sources: USB Port or AC-DC Wall Adapter
  • Preset High Accuracy Charge Voltage Options:4.10V, 4.20V, 4.35V or 4.40V
  • ±0.5% Regulation Tolerance
  • Maximum 1.8A Total Input Current Control
  • Resistor Programmable Fast Charge Current Control: 50 mA to 1A
  • Resistor Programmable Termination Set Point
  • Selectable USB Input Current Control: Absolute Maximum: 100 mA (L) / 500 mA (H)
  • Automatic Recharge
  • Automatic End-of-Charge Control
  • Safety Timer With Timer Enable/Disable Control
  • 0.1C Preconditioning for Deeply Depleted Cells
  • Battery Cell Temperature Monitor
  • Undervoltage Lockout (UVLO)
  • Low Battery Status Indicator (LBO)
  • Power-Good Status Indicator (PG)
  • Charge Status and Fault Condition Indicators
Parameter
Parameter Name Value Value
Linear Mode Yes Yes
# of Cells 1 1
Int/Ext FET Int Int
Vcc Range (V) 4.4 to 6 4.4 to 6
Voltage Regulation Accuracy (%) 0.5 0.5
Temperature Monitor Yes Yes
Charge Safety Timers Yes Yes
Max Thermal Regulation Yes Yes
Documents
MCP73871 Data Sheet (English)Data Sheets09/09/20131302KB
AN1260 - Li-Ion/Li-Poly Battery Charge and System Load Sharing Management Design Guide With MCP73871AppNote06/10/2011235KB
Low Power Analog SolutionsSell Sheets05/16/2011120KB
Analog & Interface Product Selector GuideProduct Line Card03/21/20164116KB
MCP73871 Demo Board with VPCC User's GuideUser Guides11/17/2009366KB
MCP73871 Evaluation Board User's GuideUser Guides08/18/2008393KB
Ordering Information
Part NumberLeadsPackage TypeTemp RangePacking1+26+100+1000+5000+
MCP73871-1AAI/ML20QFN-40C to +85CTUBE1.791.491.351.311.29
MCP73871-1CAI/ML20QFN-40C to +85CTUBE1.791.491.351.311.29
MCP73871-1CCI/ML20QFN-40C to +85CTUBE1.791.491.351.311.29
MCP73871-2AAI/ML20QFN-40C to +85CTUBE1.791.491.351.311.29
MCP73871-2CAI/ML20QFN-40C to +85CTUBE1.791.491.351.311.29
MCP73871-2CCI/ML20QFN-40C to +85CTUBE1.791.491.351.311.29
MCP73871-3CAI/ML20QFN-40C to +85CTUBE1.791.491.351.311.29
MCP73871-3CCI/ML20QFN-40C to +85CTUBE1.791.491.351.311.29
MCP73871-4CAI/ML20QFN-40C to +85CTUBE1.791.491.351.311.29
MCP73871-4CCI/ML20QFN-40C to +85CTUBE1.791.491.351.311.29
MCP73871T-1AAI/ML20QFN-40C to +85CT/R1.791.491.351.311.29
MCP73871T-1CAI/ML20QFN-40C to +85CT/R1.791.491.351.311.29
MCP73871T-1CCI/ML20QFN-40C to +85CT/R1.791.491.351.311.29
MCP73871T-2AAI/ML20QFN-40C to +85CT/R1.791.491.351.311.29
MCP73871T-2CCI/ML20QFN-40C to +85CT/R1.791.491.351.311.29
MCP73871T-4CAI/ML20QFN-40C to +85CT/R1.791.491.351.311.29
MCP73871T-4CCI/ML20QFN-40C to +85CT/R1.791.491.351.311.29
相关开发工具
RoHS Information
PartNumberDeviceWeightShippingWeightLeadCountPackageTypePackageWidthSolderCompositionJEDECIndicatorRoHSChinaEFUP
MCP73871-4CCI/ML0.0431000.07692320QFN4x4x0.9mmMatte Tine3
MCP73871T-4CAI/ML0.0431000.21212120QFN4x4x0.9mmMatte Tine3
MCP73871T-4CCI/ML0.0431000.21212120QFN4x4x0.9mmMatte Tine3
MCP73871T-1CAI/ML0.0431000.21212120QFN4x4x0.9mmMatte Tine3
MCP73871-3CAI/ML0.0431000.07692320QFN4x4x0.9mmMatte Tine3
MCP73871-2CCI/ML0.0431000.07692320QFN4x4x0.9mmMatte Tine3
MCP73871T-2CCI/ML0.0431000.21212120QFN4x4x0.9mmMatte Tine3
MCP73871-3CCI/ML0.0431000.07692320QFN4x4x0.9mmMatte Tine3
MCP73871-2CAI/ML0.0431000.07692320QFN4x4x0.9mmMatte Tine3
MCP73871-2AAI/ML0.0431000.07692320QFN4x4x0.9mmMatte Tine3
MCP73871T-2AAI/ML0.0431000.21212120QFN4x4x0.9mmMatte Tine3
MCP73871-1AAI/ML0.0431000.07692320QFN4x4x0.9mmMatte Tine3
MCP73871-1CAI/ML0.0431000.07692320QFN4x4x0.9mmMatte Tine3
MCP73871T-1AAI/ML0.0431000.21212120QFN4x4x0.9mmMatte Tine3
MCP73871-1CCI/ML0.0431000.07692320QFN4x4x0.9mmMatte Tine3
MCP73871T-1CCI/ML0.0431000.21212120QFN4x4x0.9mmMatte Tine3
MCP73871-4CAI/ML0.0431000.07692320QFN4x4x0.9mmMatte Tine3
MCP73871 Data Sheet (English) MCP73871
MCP73871 Data Sheet (English) MCP73871EV
AN1260 MCP73871DM-VPCC
Low Power Analog Solutions MCP3551
Analog & Interface Product Selector Guide ENC624J600
MCP73871 Demo Board with VPCC User's Guide MCP73871DM-VPCC
MCP73871 Evaluation Board User's Guide MCP73871EV