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MCP73841

Advanced Single/Dual Lithium-Ion/Li-Polymer Charge Management Controller

Status: In Production

Features:

  • Safety Charge Timers
  • Automatic Charge Termination
  • Automatic Recharge
  • Temperature Monitor
  • 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
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

The MCP73841 combines high accuracy constant-voltage (0.5% max), constant-current regulation, cell preconditioning, cell temperature monitoring, advanced safety timers, automatic charge termination, and charge status indication in a space saving MSOP-10 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 MCP73841 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.

Additional Features
    • Safety Charge Timers
    • Automatic Charge Termination
    • Automatic Recharge
    • Temperature Monitor
    • 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
Parametrics
Name
Value
Linear Mode
Yes
# of Cells
1
Int/Ext FET
Ext
Vcc Range (V)
4.5 to 12
Voltage Regulation Accuracy (%)
0.5
Temperature Monitor
Yes
Charge Safety Timers
Yes

Documents

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Data Sheet

02/05/2013
392KB

Design Guides

Product Line Card

User Guides

Development Environment

  • Demo & Evaluation Boards
Demo & Evaluation Boards
MCP7382x Battery Charger Evaluation Board
MCP7382x Battery Charger Evaluation Board ( MCP7382XEV )

The MCP7382X Li-Ion Battery Charger Evaluation Board features three circuits utilizing the MCP73826, MCP73827 and MCP73828 devices to demonstrate simple, stand-alone, linear charging of single cell Lithium-Ion/Lithium-Polymer battery packs (the battery packs are not included).

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MCP73831 Evaluation Board
MCP73831 Evaluation Board ( MCP73831EV )

Two evaluation boards are provided in the MCP73831 Evaluation Kit. The boards are set up to evaluate simple, stand-alone, linear charging of single cell Li-Ion / Li-Polymer battery packs (the battery packs are not included). Each board design provides constant current charging followed by constant voltage charging with automatic charge termination. In addition, the MCP73831-2AC board provides...

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MCP73855 Evaluation Board
MCP73855 Evaluation Board ( MCP73855EV )

The MCP73855 Battery Charger Evaluation Board is set up to evaluate simple, stand-alone, linear charging of single cell Li-Ion/Li-Polymer battery packs (the battery packs are not included). The board design provides constant current charging followed by constant voltage charging with automatic charge termination. As provided, the MCP73855 Battery Charger Evaluation Board is set for a fast charge...

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
MCP73841-420I/UN
0.023200
0.060000
10
MSOP
3x3mm
Matte Tin
e3
MCP73841T-420I/UN
0.023200
0.200000
10
MSOP
3x3mm
Matte Tin
e3
MCP73841-410I/UN
0.023200
0.060000
10
MSOP
3x3mm
Matte Tin
e3
MCP73841T-410I/UN
0.023200
0.200000
10
MSOP
3x3mm
Matte Tin
e3
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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