MCP73123T-22SI/MF

Product Overview

Category

The MCP73123T-22SI/MF belongs to the category of integrated circuits (ICs) specifically designed for battery charging applications.

Use

This product is primarily used for charging rechargeable batteries, providing a reliable and efficient charging solution.

Characteristics

• Integrated circuit for battery charging
• High efficiency and reliability
• Compact package design
• Wide input voltage range
• Multiple charging modes
• Overvoltage and overcurrent protection

Package

The MCP73123T-22SI/MF is available in a small outline integrated circuit (SOIC) package. This package offers ease of integration into various electronic devices.

Essence

The essence of the MCP73123T-22SI/MF lies in its ability to efficiently charge rechargeable batteries while ensuring their safety and longevity.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Input Voltage Range: 4.5V - 18V
• Charging Current Range: 10mA - 500mA
• Operating Temperature Range: -40°C to +85°C
• Charging Termination Options: Timer, C/10, and Minimum Current
• Battery Chemistry Support: Lithium-Ion (Li-Ion), Lithium-Polymer (Li-Po), Nickel-Metal Hydride (NiMH), Nickel-Cadmium (NiCd)

Detailed Pin Configuration

The MCP73123T-22SI/MF has the following pin configuration:

1. VDD - Power supply input
2. GND - Ground reference
3. PROG - Programming pin for setting charging parameters
4. STAT - Status output pin indicating charging status
5. TS - Temperature sense input for thermal management
6. VBAT - Battery voltage input
7. VSS - Negative terminal of the battery

Functional Features

• Constant current and constant voltage charging modes
• Programmable charging parameters through PROG pin
• Charge termination options for different battery chemistries
• Thermal management through temperature sense input
• Status output pin for monitoring charging status

Advantages and Disadvantages

Advantages

• High charging efficiency
• Wide input voltage range allows compatibility with various power sources
• Multiple charging modes cater to different battery chemistries
• Overvoltage and overcurrent protection ensure battery safety
• Compact package design enables easy integration into electronic devices

Disadvantages

• Limited charging current range may not be suitable for high-capacity batteries
• Lack of advanced features such as wireless charging or USB connectivity

Working Principles

The MCP73123T-22SI/MF operates based on a constant current/constant voltage charging algorithm. It starts by supplying a constant current to the battery until a predefined voltage is reached. Then, it switches to a constant voltage mode to maintain the battery at its maximum voltage level. The charging process terminates when one of the predefined charge termination conditions is met.

Detailed Application Field Plans

The MCP73123T-22SI/MF finds applications in various fields, including: 1. Portable electronic devices (e.g., smartphones, tablets) 2. Wearable devices (e.g., smartwatches, fitness trackers) 3. Medical devices (e.g., portable medical monitors, insulin pumps) 4. Industrial equipment (e.g., handheld meters, wireless sensors) 5. Automotive electronics (e.g., electric vehicles, hybrid vehicles)

Detailed and Complete Alternative Models

1. MCP73831T-2ACI/OT: Similar functionality with a different package option (SOT-23)
2. MCP73213T-2ACI/OT: Enhanced version with additional features like battery temperature monitoring
3. MCP73223T-2ACI/OT: Higher charging current capability for faster charging times

These alternative models offer similar functionality to the MCP73123T-22SI/MF, providing flexibility in choosing the most suitable option for specific applications.

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