MCP73843-410I/MS

Introduction

The MCP73843-410I/MS is a specialized integrated circuit (IC) designed for battery charging applications. This entry provides an overview of the product, including its category, use, characteristics, package, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

• Category: Battery Charging IC
• Use: The MCP73843-410I/MS is used for charging single-cell lithium-ion or lithium-polymer batteries in various portable devices such as smartphones, tablets, and portable electronic gadgets.
• Characteristics: It features precision voltage regulation, charge status indicators, thermal regulation, and overcurrent protection.
• Package: The MCP73843-410I/MS is available in a small 10-pin MSOP package.
• Essence: The essence of this IC lies in its ability to efficiently and safely charge lithium-ion or lithium-polymer batteries.
• Packaging/Quantity: The MCP73843-410I/MS is typically supplied in reels with a specific quantity per reel.

Specifications

• Input Voltage: 4.5V to 6.0V
• Charge Current: Programmable up to 1A
• Termination: C/10 or 1/10th the programmed current
• Temperature Range: -40°C to +85°C
• Charge Voltage: 4.2V (Fixed)
• Charge Accuracy: ±0.7%
• Thermal Regulation: Yes
• Charge Status Indicators: Yes
• Overcurrent Protection: Yes

Detailed Pin Configuration

The MCP73843-410I/MS has a 10-pin MSOP package with the following pin configuration: 1. VSS (Ground) 2. PROG (Charge Current Programming) 3. STAT (Charge Status Indicator) 4. CE (Charge Enable) 5. TS (Thermal Regulation) 6. VDD (Input Voltage) 7. VBAT (Battery Connection) 8. DP (Power Path Management) 9. D- (USB Data Negative) 10. D+ (USB Data Positive)

Functional Features

• Precision Voltage Regulation: Ensures accurate and safe charging of lithium-ion or lithium-polymer batteries.
• Charge Status Indicators: Provides visual indication of the charging process.
• Thermal Regulation: Prevents overheating during charging.
• Overcurrent Protection: Safeguards the battery and the charging circuit from excessive currents.

Advantages and Disadvantages

Advantages

• High charge accuracy
• Compact package size
• Integrated thermal regulation
• Programmable charge current

Disadvantages

• Limited to single-cell battery charging
• Requires external components for complete charging circuit

Working Principles

The MCP73843-410I/MS operates by regulating the input voltage to provide a precise charging current to the connected lithium-ion or lithium-polymer battery. It monitors the battery's voltage and temperature to ensure safe and efficient charging. The IC also includes overcurrent protection to prevent damage to the battery and the charging circuit.

Detailed Application Field Plans

The MCP73843-410I/MS is widely used in portable electronic devices, including but not limited to: - Smartphones - Tablets - Portable media players - Handheld gaming devices - Portable medical devices

Detailed and Complete Alternative Models

• MCP73831: Similar functionality with a different package and pin configuration.
• BQ24075: Texas Instruments' equivalent offering with comparable features.
• MAX1555: Maxim Integrated's alternative with similar capabilities.

In conclusion, the MCP73843-410I/MS is a versatile and reliable battery charging IC suitable for a wide range of portable electronic devices. Its precision charging capabilities, integrated protection features, and compact package make it an ideal choice for designers seeking efficient and safe battery charging solutions.

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