MCP73833-CNI/MF

Product Overview

Category

The MCP73833-CNI/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 MCP73833-CNI/MF is a highly integrated linear charge management controller.
• It provides a complete charging solution for portable devices.
• This IC offers various safety features, such as thermal regulation and overvoltage protection.
• It supports multiple charging modes, including constant current and constant voltage.

Package

The MCP73833-CNI/MF is available in a small 10-pin DFN package.

Essence

The essence of this product lies in its ability to efficiently and safely charge Li-Ion or Li-Po batteries.

Packaging/Quantity

The MCP73833-CNI/MF is typically sold in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Input Voltage: 4.5V to 6.0V
• Charging Current: Up to 1A
• Charge Termination: Programmable
• Preconditioning: Yes
• Temperature Regulation: Yes
• Overvoltage Protection: Yes
• Under Voltage Lockout: Yes
• Reverse Discharge Protection: Yes
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MCP73833-CNI/MF has the following 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. CE: Charge Enable Input
8. VSS: Ground
9. VDD: Supply Voltage Input
10. VOUT: Charge Voltage Output

Functional Features

• Constant Current and Constant Voltage Charging Modes
• Programmable Charge Termination
• Preconditioning for Deeply Discharged Batteries
• Thermal Regulation to Prevent Overheating
• Overvoltage Protection to Safeguard the Battery
• Under Voltage Lockout to Protect Against Low Input Voltage
• Reverse Discharge Protection to Prevent Battery Drainage

Advantages and Disadvantages

Advantages

• Highly integrated solution for battery charging
• Supports various safety features
• Flexible charge termination options
• Compact package size
• Wide operating temperature range

Disadvantages

• Limited charging current (up to 1A)
• Requires external components for complete charging circuit

Working Principles

The MCP73833-CNI/MF operates by regulating the charging current and voltage supplied to the 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 also incorporates various protection mechanisms, such as thermal regulation, overvoltage protection, and reverse discharge protection, to prevent damage to the battery.

Detailed Application Field Plans

The MCP73833-CNI/MF is widely used in portable electronic devices that require single-cell Li-Ion or Li-Po battery charging. Some common application fields include:

1. Smartphones and Tablets
2. Portable Media Players
3. Bluetooth Headsets
4. Wearable Devices
5. GPS Navigation Systems
6. Portable Gaming Consoles

Detailed and Complete Alternative Models

1. MCP73831: Similar functionality with lower charging current capability.
2. MCP73837: Higher charging current capability with additional features.
3. MCP73871: Integrated USB-compatible charger with advanced safety features.

These alternative models offer different specifications and features, allowing designers to choose the most suitable option for their specific application requirements.

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