MCP73842-840I/UN - Microchip Technology

Manufacturer Part Number

MCP73842-840I/UN

Manufacturer

Microchip Technology

Introduction

The MCP73842-840I/UN is a highly integrated lithium-ion/polymer battery charger designed for efficient charging of one to two cell batteries, utilizing a constant current/constant voltage profile.

Product Features and Performance

Integrated power transistor and current sensor

High accuracy preset voltage regulation (+/0.75%)

Automatic recharge feature

Charge status outputs for LED or host microcontroller interface

Automatic power-down when input supply is removed

Thermal regulation to maximize charge rate without risk of overheating

Product Advantages

Compact package 10-MSOP decreases overall solution size

Integrated circuits reduce the number of external components required

Thermal feedback regulates the charge rate

Key Technical Parameters

Battery Pack Voltage: 8.4V

Voltage Supply (Max): 12V

Operating Temperature: -40°C to 85°C

Mounting Type: Surface Mount

Battery Chemistry: Lithium Ion/Polymer

Number of Cells: 1 ~ 2

Quality and Safety Features

Over-temperature fault protection to prevent overheating

Automatic power-down feature for enhanced safety when the charger is not in use

Compatibility

Suitable for a range of lithium Ion/Polymer batteries requiring up to 8.4V

Application Areas

Portable electronic devices

Battery-powered gadgets

Consumer electronics requiring rechargeable battery solutions

Product Lifecycle

Product Status: Active

Not nearing discontinuation, with ongoing support and availability

Several Key Reasons to Choose This Product

High integration leads to a reduction in system complexity and potential points of failure

Accurate voltage regulation ensures long battery life and safe, efficient charging

Wide operating temperature range suitable for diverse environmental conditions

LED status indicators assist in real-time charging monitoring

Compact and reliable design suitable for compact devices