Manufacturer Part Number
MCP73811T-420I/OT
Manufacturer
Microchip Technology
Introduction
The MCP73811T-420I/OT is a highly integrated linear charge management controller for single-cell lithium-ion and lithium-polymer batteries.
Product Features and Performance
Single-cell, fully integrated Li-Ion/Li-Polymer charge management controller
Constant current charge mode
Integrated pass transistor
Integrated current sense
Integrated thermal regulation
High-accuracy voltage regulation
Automatic power-down when charge is complete
Thermal shutdown protection
Product Advantages
Simple-to-use charge controller for single-cell applications
Efficient charging with integrated pass element and current sense circuits
Thermal regulation optimizes charge cycle time while maintaining device reliability
High accuracy voltage regulation maximizes battery capacity
Small package size suitable for space-constrained applications
Key Technical Parameters
Battery Chemistry: Lithium Ion/Polymer
Number of Cells: 1
Charge Current - Max: 450mA
Battery Pack Voltage: 4.2V
Voltage - Supply (Max): 6V
Operating Temperature: -40°C to 85°C (TA)
Mounting Type: Surface Mount
Package / Case: SC-74A, SOT-753
Supplier Device Package: SOT-23-5
Base Product Number: MCP73811
Quality and Safety Features
Over-temperature protection
Automatic end-of-charge control
High-accuracy voltage regulation for safe charging
Compatibility
Designed for single-cell lithium-ion or lithium-polymer battery configurations
Compatible with space-constrained PCB designs due to its small package
Application Areas
Portable electronics
Wearable devices
Battery-powered gadgets
Consumer electronics
Medical and healthcare devices
Product Lifecycle
Active product status, not currently nearing discontinuation
Future availability of replacements or upgrades as per Microchip Technology's product lifecycle management
Several Key Reasons to Choose This Product
Simplified battery management eliminates external components
Optimized for power-sensitive applications with automatic power-down feature
Extended battery life with precise voltage regulation
Compact form factor fits into space-limited designs
Robust safety features ensure long-term reliability
Backed by reputable manufacturer Microchip Technology
Designed for seamless integration with a variety of lithium battery chemistries
Consistent performance across a wide operating temperature range
MCP73828MIC
MCP73811T-420IOTMicrel / Microchip Technology