MCP73831T-5ACI/OT

Product Overview

Category

The MCP73831T-5ACI/OT belongs to the category of battery charger ICs.

Use

This product is primarily used for charging single-cell lithium-ion (Li-Ion) or lithium-polymer (Li-Po) batteries.

Characteristics

• The MCP73831T-5ACI/OT is a highly integrated linear charge management controller.
• It provides a complete charging solution for single-cell Li-Ion or Li-Po batteries.
• This IC offers various safety features, such as thermal regulation and overcurrent protection.
• It supports constant current and constant voltage charging modes.
• The MCP73831T-5ACI/OT operates with an input voltage range of 4.5V to 6.0V.

Package

This product is available in a small SOT-23-5 package.

Essence

The essence of the MCP73831T-5ACI/OT lies in its ability to efficiently and safely charge single-cell Li-Ion or Li-Po batteries.

Packaging/Quantity

The MCP73831T-5ACI/OT is typically sold in reels, with 3000 units per reel.

Specifications

• Input Voltage Range: 4.5V to 6.0V
• Charging Current Range: Up to 500mA
• Charge Termination Options: Constant Current, Constant Voltage
• Thermal Regulation: Yes
• Overcurrent Protection: Yes
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MCP73831T-5ACI/OT has the following pin configuration:

1. VDD - Power supply input
2. STAT - Status output pin
3. PROG - Programming pin for setting the charge current
4. GND - Ground
5. VBAT - Battery voltage input

Functional Features

• Constant current and constant voltage charging modes ensure optimal battery charging.
• Thermal regulation prevents overheating during the charging process.
• Overcurrent protection safeguards against excessive current flow, protecting both the charger and the battery.
• The status output pin provides information about the charging process.

Advantages and Disadvantages

Advantages

• Highly integrated solution for Li-Ion/Li-Po battery charging.
• Small package size allows for space-efficient designs.
• Safety features protect the battery and charger from potential damage.
• Wide operating temperature range enables usage in various environments.

Disadvantages

• Limited charging current capability compared to some other charger ICs.
• Requires an external resistor for programming the charge current.

Working Principles

The MCP73831T-5ACI/OT operates by regulating the charging current and voltage supplied to the connected Li-Ion or Li-Po battery. It uses a combination of constant current and constant voltage charging modes to ensure efficient and safe charging. The IC monitors the battery's voltage and adjusts the charging parameters accordingly. Safety features like thermal regulation and overcurrent protection are implemented to prevent damage to the battery and the charger itself.

Detailed Application Field Plans

The MCP73831T-5ACI/OT finds applications in various portable electronic devices that utilize single-cell Li-Ion or Li-Po batteries. Some common application fields include:

1. Mobile phones
2. Tablets
3. Portable media players
4. Bluetooth devices
5. Wearable devices

Detailed and Complete Alternative Models

1. MCP73831-2ATI/OT: Similar to MCP73831T-5ACI/OT but with a different charge termination option.
2. MCP73831-3ATI/OT: Another alternative with a higher charging current capability.
3. MCP73831-4ATI/OT: Similar to MCP73831T-5ACI/OT but with a different package option.

These alternative models offer similar functionality and can be considered as substitutes for the MCP73831T-5ACI/OT in specific applications.

Word count: 498 words