MCP73213-B6AI/MF

Product Overview

Category

The MCP73213-B6AI/MF belongs to the category of integrated circuits (ICs) specifically designed for battery charging applications.

Use

This product is primarily used for charging lithium-ion (Li-Ion) or lithium-polymer (Li-Po) batteries in various electronic devices such as smartphones, tablets, portable media players, and other portable electronic devices.

Characteristics

• The MCP73213-B6AI/MF is a highly efficient and compact charging solution.
• It supports single-cell Li-Ion/Li-Po batteries with a voltage range of 3.5V to 4.35V.
• This IC offers a programmable charge current up to 1.5A, allowing flexibility in charging different battery capacities.
• It incorporates advanced safety features like thermal regulation, overvoltage protection, and battery temperature monitoring.
• The MCP73213-B6AI/MF operates with high efficiency, minimizing power dissipation during the charging process.
• It is designed to provide a reliable and stable charging performance, ensuring the longevity of the battery.

Package and Quantity

The MCP73213-B6AI/MF is available in a small form factor 10-pin DFN (Dual Flat No-Lead) package. It is typically sold in reels containing a quantity of 3000 units per reel.

Specifications

• Input Voltage Range: 4.35V to 6V
• Charge Current Range: Up to 1.5A (programmable)
• Operating Temperature Range: -40°C to +85°C
• Battery Voltage Range: 3.5V to 4.35V
• Charging Efficiency: >90%
• Thermal Regulation Accuracy: ±2°C
• Overvoltage Protection Threshold: 4.4V
• Under Voltage Lockout (UVLO) Threshold: 2.5V

Pin Configuration

The MCP73213-B6AI/MF features the following pin configuration:

1. VBAT - Battery Voltage Input
2. STAT - Charging Status Output
3. PG - Power Good Output
4. PROG - Charge Current Programming Input
5. TS - Temperature Sense Input
6. GND - Ground
7. VDD - Supply Voltage Input
8. CE - Charge Enable Input
9. ISET - Current Set Resistor Connection
10. VSS - Negative Supply Voltage Input

Functional Features

• Programmable Charge Current: The MCP73213-B6AI/MF allows users to set the charge current according to the battery's capacity and charging requirements.
• Thermal Regulation: This IC incorporates thermal regulation to prevent overheating during the charging process, ensuring safe operation.
• Overvoltage Protection: It provides protection against overvoltage conditions, safeguarding the battery from potential damage.
• Battery Temperature Monitoring: The MCP73213-B6AI/MF includes a temperature sense input to monitor the battery's temperature, enabling safe charging even in varying environmental conditions.
• Power Good Indicator: The power good output pin (PG) indicates when the charging process is complete and the battery is ready for use.
• Charge Enable Control: The charge enable input (CE) allows users to control the charging process by enabling or disabling it as required.

Advantages and Disadvantages

Advantages

• High charging efficiency ensures minimal power loss during the charging process.
• Compact form factor and small package size make it suitable for space-constrained applications.
• Programmable charge current offers flexibility for charging different battery capacities.
• Advanced safety features protect the battery from overvoltage and overheating.
• Reliable and stable charging performance ensures the longevity of the battery.

Disadvantages

• Limited to single-cell Li-Ion/Li-Po battery charging applications.
• Not suitable for multi-cell battery charging requirements.

Working Principles

The MCP73213-B6AI/MF operates based on a constant current/constant voltage (CC/CV) charging algorithm. Initially, it provides a constant current to the battery until it reaches a predefined voltage threshold. Once this threshold is reached, the IC switches to a constant voltage mode, maintaining a steady voltage while reducing the charging current. This ensures a controlled and safe charging process, preventing overcharging and damage to the battery.

Detailed Application Field Plans

The MCP73213-B6AI/MF finds extensive application in various portable electronic devices that utilize single-cell Li-Ion or Li-Po batteries. Some of the common application fields include:

1. Smartphones and Tablets: The IC is widely used in smartphones and tablets to provide efficient and reliable battery charging capabilities.
2. Portable Media Players: It is employed in portable media players to ensure optimal battery performance and longevity.
3. Wearable Devices: The MCP73213-B6AI/MF is suitable for wearable devices like smartw