MCP73837-NVI/UN

Product Overview

Category

The MCP73837-NVI/UN belongs to the category of battery charger controllers.

Use

This product is used for charging single-cell lithium-ion or lithium-polymer batteries.

Characteristics

• The MCP73837-NVI/UN is a highly integrated solution for battery charging applications.
• It offers a compact and cost-effective charging solution.
• This product provides various safety features to protect the battery during charging.
• It supports multiple charging modes, including constant current and constant voltage.

Package

The MCP73837-NVI/UN is available in a small 10-pin MSOP package.

Essence

The essence of this product lies in its ability to efficiently charge lithium-ion or lithium-polymer batteries while ensuring their safety and longevity.

Packaging/Quantity

The MCP73837-NVI/UN is typically sold in reels containing a quantity of 250 units.

Specifications

• Input Voltage Range: 4.5V to 6.0V
• Charge Current Range: 15mA to 500mA
• Preconditioning Current: 10% of programmed current
• Charge Termination Options: C/10 or timer
• Battery Temperature Monitoring: Yes
• Thermal Regulation: Yes
• Reverse Discharge Protection: Yes
• Under Voltage Lockout: Yes
• Overvoltage Protection: Yes

Detailed Pin Configuration

1. VDD - Power supply input
2. STAT - Status output pin
3. PROG - Programming pin for setting charge current
4. TS - Battery temperature sense input
5. PGND - Power ground
6. BAT - Battery connection
7. VSS - Ground
8. EN - Enable pin for turning on/off the charger
9. ISET - Current set resistor connection
10. VREF - Reference voltage output

Functional Features

• Constant current and constant voltage charging modes
• Automatic charge termination based on C/10 or timer
• Battery temperature monitoring for safety
• Reverse discharge protection to prevent battery damage
• Under voltage lockout and overvoltage protection for added safety
• Thermal regulation to prevent overheating

Advantages and Disadvantages

Advantages

• Highly integrated solution for battery charging applications
• Compact and cost-effective design
• Multiple charging modes for flexibility
• Safety features to protect the battery
• Efficient charging performance

Disadvantages

• Limited input voltage range (4.5V to 6.0V)
• Relatively low charge current range (15mA to 500mA)

Working Principles

The MCP73837-NVI/UN operates by regulating the charging current and voltage to the connected lithium-ion or lithium-polymer battery. It uses a combination of constant current and constant voltage charging modes to ensure efficient and safe charging. The charger monitors the battery temperature, prevents reverse discharge, and includes various safety features to protect the battery from overcharging or other potential risks.

Detailed Application Field Plans

The MCP73837-NVI/UN is widely used in portable electronic devices, such as smartphones, tablets, digital cameras, and portable gaming consoles. It is also utilized in various battery-powered systems, including medical devices, wireless sensors, and handheld instruments. The product's compact size, integrated features, and safety mechanisms make it suitable for a wide range of applications.

Detailed and Complete Alternative Models

1. MCP73831 - Similar functionality with a lower charge current range.
2. MCP73833 - Higher charge current range and additional features like thermal regulation.
3. MCP73871 - Dual-cell battery charger controller with similar characteristics.
4. MCP73872 - Dual-cell charger with higher charge current capability and advanced safety features.

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

Word count: 550 words