MCP73861-I/SL

Introduction

The MCP73861-I/SL is a specialized integrated circuit (IC) designed for battery charging applications. This device offers a range of features and specifications that make it suitable for various portable electronic devices.

Basic Information Overview

Category: Battery Charging IC
Use: Charging lithium-ion or lithium-polymer batteries
Characteristics: Fast charge capability, thermal regulation, overvoltage protection
Package: 8-Lead SOIC
Essence: Efficient and reliable battery charging solution
Packaging/Quantity: Tube/50 units per tube

Specifications

Input Voltage: 4.5V to 6.0V
Charge Current: Programmable up to 1A
Termination: Programmable C/10 or 1/20 rate
Preconditioning: Trickle charge current of 1/10 programmable fast charge current
Thermal Regulation: Automatic reduction of charge current if the die temperature exceeds 125°C
Overvoltage Protection: 6.3V

Detailed Pin Configuration

VSS - Ground
PROG - Charge Current Programming Pin
TS - Temperature Sense Input
CE - Charge Enable Input
STAT - Status Output
VDD - Supply Voltage Input
BAT - Battery Connection
VSS - Ground

Functional Features

Programmable Charge Current
Automatic Thermal Regulation
Overvoltage Protection
Charge Enable Control
Status Output for Charge Complete indication

Advantages and Disadvantages

Advantages - Flexible charge current programming - Thermal regulation enhances safety - Overvoltage protection prevents damage to the battery - Compact package size

Disadvantages - Limited to lithium-ion and lithium-polymer battery types - Requires external components for complete charging system

Working Principles

The MCP73861-I/SL operates by regulating the charge current based on the input from the temperature sense pin and the programmed charge current. It monitors the battery voltage and temperature to ensure safe and efficient charging.

Detailed Application Field Plans

Portable consumer electronics
Medical devices
Industrial equipment
Portable instrumentation

Detailed and Complete Alternative Models

MCP73831
MCP73837
MCP73871

In summary, the MCP73861-I/SL is a versatile battery charging IC with programmable features and built-in safety mechanisms, making it suitable for a wide range of portable electronic devices.

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Sebutkan 10 pertanyaan dan jawaban umum terkait penerapan MCP73861-I/SL dalam solusi teknis

Q: What is the maximum input voltage for MCP73861-I/SL? A: The maximum input voltage for MCP73861-I/SL is 6V.
Q: What is the charge current range for MCP73861-I/SL? A: The charge current range for MCP73861-I/SL is 15mA to 1000mA.
Q: Can MCP73861-I/SL be used for charging lithium-ion batteries? A: Yes, MCP73861-I/SL is designed for charging single-cell lithium-ion or lithium-polymer batteries.
Q: Does MCP73861-I/SL have thermal regulation and safety features? A: Yes, MCP73861-I/SL includes thermal regulation and various safety features such as thermal shutdown and reverse battery protection.
Q: What is the typical charge termination method used by MCP73861-I/SL? A: MCP73861-I/SL typically uses constant-voltage and constant-current charge termination methods.
Q: Is MCP73861-I/SL suitable for portable applications? A: Yes, MCP73861-I/SL is suitable for portable applications due to its small size and low external component count.
Q: Can MCP73861-I/SL operate in a wide temperature range? A: Yes, MCP73861-I/SL can operate in a wide temperature range from -40°C to 85°C.
Q: What is the recommended input capacitor value for MCP73861-I/SL? A: The recommended input capacitor value for MCP73861-I/SL is 1µF.
Q: Does MCP73861-I/SL support trickle charging? A: Yes, MCP73861-I/SL supports trickle charging for maintaining the battery at full capacity.
Q: Are there any application notes or reference designs available for MCP73861-I/SL? A: Yes, application notes and reference designs for MCP73861-I/SL are available from the manufacturer's website.