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MCP73812

Single Cell, Li-Ion/Li-Polymer Charge Management Controller

Status: In Production

Features:

  • +/1% Voltage regulation accuracy
  • 4.2V Regulated voltage output
  • On-chip thermal regulation
  • Resistor-programmable charge current (up to 500ma)
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

Tiny 500mA charge management controller in SOT23. Includes pass transistor, integrated current sensing and reverse-discharge protection.

Additional Features
    • +/1% Voltage regulation accuracy
    • 4.2V Regulated voltage output
    • On-chip thermal regulation
    • Resistor-programmable charge current (up to 500ma)
Parametrics
Name
Value
Linear Mode
Yes
# of Cells
1
Int/Ext FET
Int
Vcc Range (V)
3.75 to 6
Voltage Regulation Accuracy (%)
1
Max Thermal Regulation
Yes

Documents

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Data Sheets

MCP73811/2 Data Sheet
654KB

Application Notes

Download All
AN1088 - Selecting the Right Battery System for Cost-Sensitive Portable Applications While Maintaining Excellent Quality
547KB
AN947 - Power Management in Portable Applications: Charging Lithium-Ion/Lithium-Polymer Batteries
244KB

Brochures

Analog & Interface Product Selector Guide
4519KB

User Guides

MCP7381X Low-Cost Li-Ion Battery Charger Evaluation Board User's Guide
317KB

Development Environment

  • Demo & Evaluation Boards
Demo & Evaluation Boards
MCP7381X Low Cost Battery Charger Eval Bd
MCP7381X Low Cost Battery Charger Eval Bd ( MCP7381XEV )
(Not Recommended for new design)

The MCP7381X Li-Ion Battery Charger Evaluation Board demonstrates the features and abilities for Microchip’s MCP7381X Li-Ion Battery Charger Evaluation Board Simple, Miniature Single-Cell, Fully Integrated Li-Ion / Li-Polymer Charge Management Controllers. The MCP73811/2 are stand-alone highly integrated linear Li-Ion battery chargers that employ a constant current/constant voltage (CCCV)...

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (grams)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
MCP73812T-420I/OT
0.016000
0.049000
5
SOT-23
-
Matte Tin
e3
MCP73812T-435I/OT
0.016000
0.049000
5
SOT-23
-
Matte Tin
e3
MCP73812T-450I/OT
0.016000
0.049000
5
SOT-23
-
Matte Tin
e3
MCP73812T-440I/OT
0.016000
0.049000
5
SOT-23
-
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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