MCP73837T-NVI/MF

Introduction

The MCP73837T-NVI/MF is a specialized integrated circuit (IC) designed for battery charging applications. This entry provides an overview of the product, including its category, use, characteristics, package, essence, packaging/quantity, specifications, detailed pin configuration, functional features, advantages and disadvantages, working principles, detailed application field plans, and alternative models.

Basic Information Overview

• Category: Battery Charging IC
• Use: The MCP73837T-NVI/MF is used for charging single-cell lithium-ion or lithium-polymer batteries in various portable devices such as smartphones, tablets, portable media players, and other handheld electronics.
• Characteristics: This IC offers high accuracy, safety, and reliability in charging lithium-ion or lithium-polymer batteries. It provides a complete charging solution with multiple safety features and programmable options.
• Package: 10-Lead, 3x3 mm VDFN
• Essence: The essence of the MCP73837T-NVI/MF lies in its ability to efficiently and safely charge lithium-ion or lithium-polymer batteries while offering flexibility and programmability.
• Packaging/Quantity: The MCP73837T-NVI/MF is typically available in tape and reel packaging with a quantity of 3000 units per reel.

Specifications

• Input Voltage: 4.5V to 6.0V
• Charge Current: Programmable up to 1.2A
• Termination: Programmable C/10 or 10% of the programmed current
• Preconditioning: Not Applicable
• Temperature Range: -40°C to +85°C
• Charge Termination: Programmable C/10 or 10% of the programmed current
• Charge Voltage: 4.20V ±1%
• Charge Accuracy: ±0.5%
• Thermal Regulation: 15mV/°C
• Charge Status Output: Yes

Detailed Pin Configuration

The MCP73837T-NVI/MF features the following pin configuration: 1. VSS (Ground) 2. PROG (Charge Current Programming) 3. STAT (Charge Status Output) 4. CE (Charge Enable) 5. TS (Thermal Sense) 6. VDD (Input Supply) 7. VBAT (Battery Connection) 8. PG (Power Good) 9. DP (D+) 10. DM (D-)

Functional Features

• Programmable Charge Current: The MCP73837T-NVI/MF allows users to program the charge current according to the specific requirements of the battery being charged.
• Charge Status Output: It provides a charge status output that can be used to indicate the charging process's status to the user or system.
• Thermal Regulation: The IC incorporates thermal regulation to ensure safe and efficient charging under varying temperature conditions.

Advantages and Disadvantages

Advantages

• High charge accuracy
• Programmable charge current
• Compact package size
• Integrated charge status output

Disadvantages

• Limited to single-cell battery charging
• Requires external components for complete charging solution

Working Principles

The MCP73837T-NVI/MF operates by regulating the charge current and voltage to the connected lithium-ion or lithium-polymer battery. It utilizes a precise control algorithm to ensure safe and efficient charging while monitoring the battery's temperature and status.

Detailed Application Field Plans

The MCP73837T-NVI/MF is suitable for a wide range of portable electronic devices requiring single-cell lithium-ion or lithium-polymer battery charging. Its high accuracy and programmable features make it ideal for applications where customized charging profiles are necessary to maximize battery life and performance.

Detailed and Complete Alternative Models

• MCP73831: Similar functionality with a different package and pin configuration
• MCP73833: Offers additional features such as pre-conditioning and thermal regulation
• MCP73871: Suitable for dual-cell battery charging applications with similar programmable features

In conclusion, the MCP73837T-NVI/MF is a versatile and reliable battery charging IC suitable for various portable electronic devices. Its programmable features, high accuracy, and safety mechanisms make it an ideal choice for designers seeking a tailored charging solution for lithium-ion or lithium-polymer batteries.

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