MCP73832T-2DFI/OT

Product Overview

Category

The MCP73832T-2DFI/OT 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 MCP73832T-2DFI/OT is a highly integrated linear charge management controller.
• It offers a complete charging solution for single-cell Li-Ion or Li-Po batteries.
• This IC provides various safety features, such as thermal regulation, over-voltage protection, and under-voltage lockout.
• It supports multiple charging modes, including constant current (CC) and constant voltage (CV) charging.

Package

The MCP73832T-2DFI/OT is available in a 10-pin DFN (Dual Flat No-Lead) package.

Essence

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

Packaging/Quantity

The MCP73832T-2DFI/OT is typically sold in reels, with 2500 units per reel.

Specifications

• Input Voltage Range: 4.5V to 6.0V
• Charge Current Range: Up to 1A
• Preconditioning Current: 10% of programmed maximum charge current
• Charge Termination Options: Timer, C/10, and Minimum Current
• Battery Temperature Monitoring
• Thermal Regulation
• Over-Voltage Protection
• Under-Voltage Lockout
• Reverse Discharge Protection

Detailed Pin Configuration

The MCP73832T-2DFI/OT has the following pin configuration:

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

Functional Features

1. Constant Current (CC) Charging Mode: The MCP73832T-2DFI/OT provides a controlled constant current to the battery during the initial charging phase.
2. Constant Voltage (CV) Charging Mode: Once the battery voltage reaches a certain threshold, the IC switches to constant voltage mode to prevent overcharging.
3. Safety Features: This IC incorporates various safety features like thermal regulation, over-voltage protection, under-voltage lockout, and reverse discharge protection.
4. Charge Termination Options: The MCP73832T-2DFI/OT offers multiple charge termination options, including timer-based termination, C/10 termination, and minimum current termination.

Advantages and Disadvantages

Advantages

• Highly integrated solution for Li-Ion/Li-Po battery charging.
• Supports multiple charging modes.
• Incorporates various safety features.
• Flexible charge termination options.

Disadvantages

• Limited to single-cell Li-Ion/Li-Po battery charging.
• Requires external components for complete charging circuit implementation.

Working Principles

The MCP73832T-2DFI/OT operates by regulating the charging current and voltage supplied to the connected Li-Ion or Li-Po battery. It starts with a constant current charging mode to rapidly charge the battery until it reaches a specific voltage threshold. At this point, the IC switches to constant voltage mode to maintain a safe charging level and prevent overcharging. The various safety features ensure the protection of the battery and the charging circuit from potential risks.

Detailed Application Field Plans

The MCP73832T-2DFI/OT finds applications in various portable electronic devices, such as smartphones, tablets, digital cameras, and portable gaming consoles. It is also used in power banks, wireless headphones, and other battery-powered devices that require efficient and safe charging of single-cell Li-Ion or Li-Po batteries.

Detailed and Complete Alternative Models

1. MCP73831T-2ACI/OT: Similar to the MCP73832T-2DFI/OT, but with a different pin configuration.
2. MCP73833T-2ACI/OT: Offers additional features like battery temperature monitoring and thermal regulation control.
3. MCP73837T-2ACI/OT: Supports multi-cell battery charging and offers higher charge current capabilities.

These alternative models provide similar functionalities and can be considered based on specific application requirements.

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