MCP73863-I/ML - Microchip Technology

Manufacturer Part Number

MCP73863-I/ML

Manufacturer

Microchip Technology

Introduction

The MCP73863-I/ML is a highly integrated lithium-ion/lithium-polymer battery charger IC designed for efficient charging of single-cell Li-ion or Li-Poly batteries.

Product Features and Performance

Integrated pass transistor and current sense

High accuracy preset voltage regulation (+/0.75%)

Constant current/constant voltage operation with thermal regulation

Automatic recharge feature

Preconditioning of deeply depleted batteries

Charge termination by minimum current

Programmable charge timer for safety

Soft-start feature limits inrush current

Product Advantages

High integration level reduces external component count

Precision voltage regulation improves battery performance and life

Thermal regulation enhances safety

Flexible programming options accommodate various battery sizes and chemistry

Low dropout voltage extends battery life

Key Technical Parameters

Battery Chemistry: Lithium Ion/Polymer

Number of Cells: 1

Constant Charging Current: Programmable

Maximum Charge Current: 1.38A

Battery Pack Voltage: 4.2V

Maximum Supply Voltage: 12V

Operating Temperature: -40°C to 85°C

Package: 16-VQFN Exposed Pad

Quality and Safety Features

Thermal overload protection

Under-voltage lockout (UVLO)

Automatic recharge and end-of-charge safety timers

Compatibility

Designed for single-cell lithium-ion or lithium-polymer batteries

Compatible with a wide variety of battery capacities

Application Areas

Portable electronics

Handheld devices

Battery-powered equipment

Standalone chargers

Product Lifecycle

Status: Obsolete

Note on availability of replacements or upgrades: Customers are advised to contact Microchip Technology for information on the latest replacement or upgrade options.

Several Key Reasons to Choose This Product

High accuracy voltage regulation extends the lifespan of lithium batteries

Integrated features reduce additional component requirements, simplifying design and lowering overall costs

Programmable parameters provide flexibility for different battery technologies and sizes

Obsolescence status requires consideration of future availability but also indicates maturity and proven reliability of the product in various applications