MCP73843

The MCP73843 combines high accuracy constant-voltage (0.5% max), constant-current regulation, cell preconditioning, advanced safety timers, automatic charge termination, and charge status indication in a space saving MSOP-8 package. The device provides a complete, fully functional, stand-alone charge management solution for applications utilizing single cell Lithium-Ion or Lithium-Polymer battery packs. Two preset voltage regulation options are available, 4.1V and 4.2V, for use with either coke or graphite anodes. The MCP73843 operates with an input voltage range of 4.5V to 12V and is fully specified over the ambient temperature range of -40°C to +85°C.

Features
  • Safety Charge Timers
  • Automatic Charge Termination
  • Automatic Recharge
  • Charge Status Indicator
  • High Accuracy Voltage Regulation: 0.5% (Max)
  • Automatic Preconditioning of Deeply Depleted Cells
  • Shutdown Current: 0.25µA (Typical)
  • No Inductor Required
  • Programmable Charge Current
  • Automatic Power-Down When Input Power Removed
  • –40°C to +85°C Ambient Operating Temperature range
Parameter
Parameter Name Value Value
Linear Mode Yes Yes
# of Cells 1 1
Int/Ext FET Ext Ext
Vcc Range (V) 4.5 to 12 4.5 to 12
Voltage Regulation Accuracy (%) 0.5 0.5
Charge Safety Timers Yes Yes
Documents
MCP73841/2/3/4 DatasheetData Sheets02/05/2013392KB
AN947 - Power Management in Portable Applications: Charging Lithium-Ion/Lithium-Polymer BatteriesAppNote07/22/2004244KB
Analog & Interface Guide (Volume 2)Brochures10/11/20051067KB
Quick Guide to Microchip Development ToolsBrochures10/15/201411223KB
ADN008 Charging Simplified for High Capacity BatteriesDesign Notes03/10/2004160KB
Portable Power Conversion Design GuideDesign Guides05/21/20146555KB
Analog & Interface Product Selector GuideProduct Line Card03/21/20164116KB
8-Pin SOIC/MSOP/TSSOP/DIP Evaluation Board User's GuideUser Guides01/24/20061367KB
MCP7384X Evaluation Kit User's GuideUser Guides10/31/2003352KB
相关开发工具
RoHS Information
PartNumberDeviceWeightShippingWeightLeadCountPackageTypePackageWidthSolderCompositionJEDECIndicatorRoHSChinaEFUP
MCP73843-410I/MS0.0256000.0700008MSOP3x3mmMatte Tine3
MCP73843-420I/MS0.0256000.0700008MSOP3x3mmMatte Tine3
MCP73843T-410I/MS0.0256000.2156008MSOP3x3mmMatte Tine3
MCP73843T-420I/MS0.0256000.2156008MSOP3x3mmMatte Tine3
MCP73841/2/3/4 Datasheet MCP73844
AN947 MCP73831EV
Analog & Interface Guide (Volume 2) MCP23S08
Quick Guide to Microchip Development Tools ENC28J60
ADN008 Charging Simplified for High Capacity Batteries MCP73844
Portable Power Conversion Design Guide MCP6295
Analog & Interface Product Selector Guide ENC624J600
8-Pin SOIC/MSOP/TSSOP/DIP Evaluation Board User's Guide SOIC8EV
MCP7384X Evaluation Kit User's Guide MCP73844