MCP73833T-AMI/MF

Product Overview

Category

The MCP73833T-AMI/MF 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 MCP73833T-AMI/MF is a highly integrated linear charge management controller.
• It offers a complete charging solution for portable devices with limited space and power constraints.
• This IC provides various safety features, such as thermal regulation, overvoltage protection, and reverse discharge protection.
• It supports constant current/constant voltage (CC/CV) charging profiles, ensuring efficient and safe charging of Li-Ion/Li-Po batteries.

Package

The MCP73833T-AMI/MF is available in a small 10-pin MSOP package.

Essence

The essence of this product lies in its ability to provide a compact and reliable charging solution for single-cell Li-Ion/Li-Po batteries.

Packaging/Quantity

The MCP73833T-AMI/MF is typically sold in reels, with 2500 units per reel.

Specifications

• Input Voltage Range: 4.5V to 6.0V
• Charge Current Range: Up to 500mA
• Preconditioning Current: 10% of programmed current
• Charge Termination Options: C/10 or Timer
• Temperature Regulation: ±1°C
• Reverse Discharge Protection Threshold: 2.5V
• Overvoltage Protection Threshold: 4.4V

Detailed Pin Configuration

1. VBAT - Battery Voltage Input
2. PROG - Charge Current Programming Pin
3. STAT - Status Output Pin
4. PGND - Power Ground
5. THERM - Thermal Regulation Input
6. TS - Temperature Sense Input
7. VSS - Ground
8. CE - Charge Enable Input
9. DP - D+ USB Data Line
10. DM - D- USB Data Line

Functional Features

• Constant Current/Constant Voltage (CC/CV) Charging
• Programmable Charge Current
• Thermal Regulation for Safety
• Overvoltage Protection
• Reverse Discharge Protection
• Status Output Pin for Charging Indication
• USB-Compatible Data Lines for Charging and Communication

Advantages and Disadvantages

Advantages

• Compact and highly integrated design
• Efficient and safe charging of Li-Ion/Li-Po batteries
• Multiple safety features for protection against overvoltage and reverse discharge
• Programmable charge current for flexibility

Disadvantages

• Limited to single-cell battery charging
• Maximum charge current limited to 500mA

Working Principles

The MCP73833T-AMI/MF operates by regulating the charging current and voltage to ensure safe and efficient charging of Li-Ion/Li-Po batteries. It follows a CC/CV charging profile, where it initially provides a constant current to the battery until a certain voltage threshold is reached. Then, it switches to a constant voltage mode to prevent overcharging. The IC also incorporates thermal regulation to protect against overheating.

Detailed Application Field Plans

The MCP73833T-AMI/MF finds applications in various portable devices that require single-cell Li-Ion/Li-Po battery charging. Some common application fields include: - Smartphones and tablets - Portable media players - Bluetooth headsets - Wearable devices - GPS navigation systems - Portable gaming consoles

Detailed and Complete Alternative Models

1. MCP73831T-2ATI/MC: Similar functionality with a lower charge current capability.
2. MCP73871-2CCI/ML: Higher charge current capability with additional features like battery temperature monitoring.
3. MCP73844-420I/MS: Supports multi-cell battery charging with higher voltage and current ratings.

These alternative models offer different specifications and features, allowing users to choose the most suitable option based on their specific requirements.

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