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MCP73828

Single Cell Lithium-Ion Charge Management Controller

Status: In Production

Features:

  • Low Power Dissipation
  • Shutdown Current: 0.7uA (Typical)
  • No Inductor Required
  • 1 % Overall System Accuracy
  • Automatic Cell Preconditioning of Deeply Depleted Cells
  • Programmable Charge Current
  • Automatic Power-Down When Input Power Removed
  • Charge Complete Output
  • Continuous Temperature Monitor
  • Foldback Current Limiting
  • -20°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 MCP73828 is a battery charger controller for single cell Lithium-Ion (Li-Ion) batteries. Using an external PMOS transistor, safe and fast charging of a single Li-Ion cell is accomplished. Features include, over-current foldback, charge complete output, and continuous temperature monitor. An overall system accuracy of 1% ensures that the cell capacity is fully utilized without cycle life degradation. An external resistor can set charge current. The MCP73828 operates with an input voltage range from 4.5V to 5.5V. It is specified over the ambient operating temperature range of -20°C to +85°C and is available in a small 8-Pin MSOP.

Additional Features
    • Low Power Dissipation
    • Shutdown Current: 0.7uA (Typical)
    • No Inductor Required
    • 1 % Overall System Accuracy
    • Automatic Cell Preconditioning of Deeply Depleted Cells
    • Programmable Charge Current
    • Automatic Power-Down When Input Power Removed
    • Charge Complete Output
    • Continuous Temperature Monitor
    • Foldback Current Limiting
    • -20°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 5.5
Voltage Regulation Accuracy (%)
1
Temperature Monitor
Yes

Documents

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Data Sheet

07/01/2004
499KB

Product Line Card

Development Environment

  • Demo & Evaluation Boards
  • Application Examples
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
MCP73828-4.1VUA
0.025600
0.070000
8
MSOP
3x3mm
Matte Tin
e3
MCP73828-4.1VUATR
0.025600
0.215600
8
MSOP
3x3mm
Matte Tin
e3
MCP73828-4.2VUA
0.025600
0.070000
8
MSOP
3x3mm
Matte Tin
e3
MCP73828-4.2VUATR
0.025600
0.215600
8
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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