MCP73832T-3ACI/OT

Product Overview

Category

The MCP73832T-3ACI/OT belongs to the category of battery charger ICs.

Use

This product is primarily used for charging single-cell lithium-ion (Li-Ion), lithium-polymer (Li-Po), and lithium iron phosphate (LiFePO4) batteries.

Characteristics

• The MCP73832T-3ACI/OT is a highly integrated linear charge management controller.
• It provides a complete charging solution for portable devices with limited space and power constraints.
• This IC offers a wide range of safety features, including thermal regulation, overvoltage protection, and reverse battery protection.
• It supports various charging profiles, such as constant current (CC) and constant voltage (CV) modes.
• The MCP73832T-3ACI/OT is designed to operate with an input voltage range of 4.5V to 6.0V.

Package

This product is available in a small 10-pin MSOP package.

Essence

The essence of the MCP73832T-3ACI/OT lies in its ability to efficiently and safely charge lithium-ion batteries in compact electronic devices.

Packaging/Quantity

The MCP73832T-3ACI/OT is typically sold in reels, with 250 units per reel.

Specifications

• Input Voltage Range: 4.5V to 6.0V
• Charging Current Range: Up to 1.5A
• Programmable Charge Termination Current: 0.5x, 1x, or 2x
• Preconditioning Mode: Yes
• Thermal Regulation: Yes
• Overvoltage Protection: Yes
• Reverse Battery Protection: Yes
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MCP73832T-3ACI/OT has the following pin configuration:

1. VBAT - Battery Voltage Input
2. PROG - Charge Termination Current Programming Pin
3. STAT - Charging Status Output
4. PG - Power Good Output
5. TS - Thermal Regulation Sense Input
6. EN - Enable Input
7. GND - Ground
8. VSS - Negative Supply Input
9. VDD - Positive Supply Input
10. VOUT - Regulated Output Voltage

Functional Features

• Constant Current (CC) and Constant Voltage (CV) charging modes.
• Programmable charge termination current for flexible charging profiles.
• Preconditioning mode to optimize battery performance.
• Thermal regulation to prevent overheating during charging.
• Overvoltage protection to safeguard the battery from excessive voltage.
• Reverse battery protection to prevent damage caused by reverse polarity.

Advantages and Disadvantages

Advantages

• Highly integrated solution for compact devices.
• Wide input voltage range allows compatibility with various power sources.
• Multiple safety features ensure safe and reliable charging.
• Programmable charge termination current offers flexibility in charging profiles.

Disadvantages

• Limited to single-cell lithium-ion batteries.
• Requires external components for complete charging circuitry.

Working Principles

The MCP73832T-3ACI/OT operates by regulating the charging current and voltage supplied to the connected lithium-ion battery. It uses a combination of constant current and constant voltage charging modes to efficiently charge the battery while ensuring its safety.

The IC monitors the battery voltage, temperature, and charging status to adjust the charging parameters accordingly. It employs thermal regulation to prevent overheating and overvoltage protection to avoid damaging the battery. The charge termination current can be programmed to suit different battery capacities and charging requirements.

Detailed Application Field Plans

The MCP73832T-3ACI/OT is widely used in various portable electronic devices, including smartphones, tablets, digital cameras, and portable media players. It is also utilized in battery-powered medical devices, handheld gaming consoles, and wireless communication devices.

Detailed and Complete Alternative Models

• MCP73831T-2ACI/OT: Similar to MCP73832T-3ACI/OT but with a lower charging current capability.
• MCP73833T-2ACI/OT: Similar to MCP73832T-3ACI/OT but with an additional power good output pin.
• MCP73837T-2ACI/OT: Similar to MCP73832T-3ACI/OT but with a higher charging current capability.

These alternative models provide similar functionality and can be chosen based on specific application requirements.

In conclusion, the MCP73832T-3ACI/OT is a highly integrated linear charge management controller designed for charging single-cell lithium-ion batteries. With its compact size, safety features, and programmable charging parameters, it offers an efficient and reliable solution for portable electronic devices.