MCP73831T-2ATI/OT

Product Overview

The MCP73831T-2ATI/OT is a specialized integrated circuit (IC) designed for battery charging applications. This device falls under the category of battery management ICs and is widely used in portable electronic devices, power banks, and other battery-powered systems. The MCP73831T-2ATI/OT is known for its compact package, efficient charging characteristics, and versatile application across various industries.

Basic Information

• Category: Battery Management IC
• Use: Charging lithium-ion or lithium-polymer batteries
• Characteristics: Compact size, high efficiency, and reliable performance
• Package: 5-pin SOT-23 package
• Essence: Efficient and reliable battery charging
• Packaging/Quantity: Available in tape and reel packaging with quantities varying based on supplier and demand

Specifications

The MCP73831T-2ATI/OT operates within a specified range of electrical and thermal parameters. Some key specifications include: - Input Voltage Range: 3.75V to 6V - Charge Current: Programmable up to 500mA - Preconditioning Current: 10% of the programmed constant current value - Termination Current: 5% of the programmed constant current value - Ambient Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The MCP73831T-2ATI/OT features a 5-pin SOT-23 package with the following pin configuration: 1. VSS (Ground) 2. PROG (Charge Current Programming) 3. STAT (Charge Status Output) 4. VBAT (Battery Connection) 5. VDD (Input Voltage)

Functional Features

• Programmable Charge Current: The MCP73831T-2ATI/OT allows users to set the charge current according to the specific requirements of the connected battery.
• Charge Status Output: The STAT pin provides information about the charging status, enabling system integration and monitoring.
• Thermal Regulation: The IC incorporates thermal regulation to ensure safe and efficient charging even under varying temperature conditions.

Advantages and Disadvantages

Advantages

• Compact size makes it suitable for space-constrained designs
• Programmable charge current offers flexibility for different battery types
• Integrated charge status output simplifies system monitoring

Disadvantages

• Limited to charging lithium-ion and lithium-polymer batteries
• May require additional protection circuitry for certain applications

Working Principles

The MCP73831T-2ATI/OT utilizes a constant current/constant voltage charging algorithm to efficiently charge lithium-ion and lithium-polymer batteries. It regulates the charge current and voltage to ensure safe and optimal charging without overcharging or overheating the battery.

Detailed Application Field Plans

The MCP73831T-2ATI/OT finds extensive use in various applications, including: - Portable electronic devices such as smartphones, tablets, and digital cameras - Power banks and portable chargers - Battery-powered IoT devices and wearables - Consumer electronics and handheld instruments

Detailed and Complete Alternative Models

Several alternative models offer similar functionality to the MCP73831T-2ATI/OT, including: - MCP73832: A variant with additional features such as thermal regulation and charge termination timer - MAX1555: An alternative IC with similar charging characteristics and package options - BQ24074: Texas Instruments' offering with programmable charge current and integrated power path management

In conclusion, the MCP73831T-2ATI/OT stands as a reliable and efficient solution for charging lithium-ion and lithium-polymer batteries in a wide range of portable electronic devices and battery-powered systems. Its compact size, programmable charge current, and integrated charge status output make it a popular choice among designers seeking a dependable battery management IC.

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