MCP73833-B6I/UN

Product Overview

Category

The MCP73833-B6I/UN 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-B6I/UN is a highly integrated solution for portable devices.
• It offers a compact and efficient charging solution for Li-Ion/Li-Po batteries.
• This product provides various safety features, such as thermal regulation and charge termination.

Package

The MCP73833-B6I/UN is available in a small 6-pin SOT-23 package.

Essence

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

Packaging/Quantity

The MCP73833-B6I/UN is typically sold in reels or tubes, with a quantity of 3000 units per reel/tube.

Specifications

• Input Voltage: 4.5V to 6.0V
• Charge Current: Up to 1A
• Preconditioning Current: 10% of programmed current
• Charge Termination: Programmable
• Thermal Regulation: Yes
• Battery Temperature Monitoring: Yes
• Reverse Discharge Protection: Yes
• Under Voltage Lockout: Yes
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MCP73833-B6I/UN 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. PGOOD: Power good output
6. VDD: Supply voltage input

Functional Features

• Constant current/constant voltage charging
• Programmable charge current
• Automatic recharge
• Charge status indication
• Thermal regulation for safety
• Reverse discharge protection
• Under voltage lockout

Advantages and Disadvantages

Advantages

• Highly integrated solution
• Compact package size
• Efficient charging performance
• Safety features for battery protection
• Programmable charge current

Disadvantages

• Limited to single-cell Li-Ion/Li-Po batteries
• Requires external components for complete charging system

Working Principles

The MCP73833-B6I/UN operates on the principle of constant current/constant voltage charging. It regulates the charging current and voltage to ensure safe and efficient charging of the connected Li-Ion/Li-Po battery. The device monitors the battery temperature, provides reverse discharge protection, and terminates the charging process when the battery is fully charged.

Detailed Application Field Plans

The MCP73833-B6I/UN is widely used in various portable devices that require single-cell Li-Ion/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 a lower charge current capability.
2. MCP73837: Higher charge current capability with additional features like USB On-The-Go (OTG) support.
3. MCP73871: Dual-cell battery charger IC for applications requiring multiple cells.

These alternative models provide similar charging capabilities but may have different package options or additional features based on specific application requirements.

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