Microchip Technology
画像はイメージの場合もございます。
商品詳細は仕様をご覧ください。
MCP73827-4.1VUATR
詳細を表示 DataSheets

MCP73827-4.1VUATR

Product Overview

Category

The MCP73827-4.1VUATR 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

  • Input voltage range: 3.75V to 6V
  • Charge current: Up to 1A
  • Programmable charge termination current
  • Preconditioning of deeply discharged cells
  • Automatic recharge
  • Thermal regulation and protection
  • Under-voltage lockout (UVLO)
  • Small package size

Package

The MCP73827-4.1VUATR is available in a small 10-pin VDFN package.

Essence

The essence of this product lies in its ability to efficiently and safely charge Li-Ion or Li-Po batteries, providing essential features for optimal battery performance.

Packaging/Quantity

The MCP73827-4.1VUATR is typically sold in reels containing 3000 units per reel.

Specifications

  • Input Voltage Range: 3.75V to 6V
  • Charge Current: Up to 1A
  • Programmable Charge Termination Current: 0.5x, 1x, 2x, or 4x
  • Preconditioning Threshold: 2.9V
  • Automatic Recharge Threshold: 2.8V
  • Thermal Regulation Threshold: 100°C
  • Under-Voltage Lockout (UVLO) Threshold: 2.4V
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

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

Functional Features

  1. Programmable Charge Termination Current: The PROG pin allows the user to select the charge termination current, providing flexibility based on battery requirements.
  2. Preconditioning of Deeply Discharged Cells: The MCP73827-4.1VUATR includes a preconditioning feature that enables charging of deeply discharged batteries.
  3. Automatic Recharge: This IC automatically initiates recharge when the battery voltage drops below a certain threshold, ensuring continuous operation.
  4. Thermal Regulation and Protection: The TS pin monitors the temperature and regulates the charging current to prevent overheating, enhancing safety and battery lifespan.
  5. Under-Voltage Lockout (UVLO): The UVLO feature protects the battery from excessive discharge by disabling the charger when the battery voltage falls below a specified threshold.

Advantages and Disadvantages

Advantages

  • Wide input voltage range allows compatibility with various power sources.
  • Programmable charge termination current offers flexibility for different battery types.
  • Preconditioning feature enables charging of deeply discharged batteries.
  • Automatic recharge ensures uninterrupted operation.
  • Thermal regulation protects the battery from overheating.
  • Under-voltage lockout prevents excessive discharge.

Disadvantages

  • Limited to single-cell Li-Ion or Li-Po battery charging.
  • Not suitable for multi-cell battery charging applications.

Working Principles

The MCP73827-4.1VUATR operates as a linear charger, utilizing a constant current/constant voltage (CC/CV) charging algorithm. It starts with a preconditioning phase for deeply discharged batteries, followed by a constant current charging phase until the battery voltage reaches a specified threshold. The charger then switches to a constant voltage mode, maintaining the battery voltage at the termination current level until the charge is complete.

Detailed Application Field Plans

The MCP73827-4.1VUATR finds applications in various portable electronic devices, such as smartphones, tablets, digital cameras, and portable media players. It is also suitable for power banks, wireless headphones, and other battery-powered devices that require efficient and reliable charging.

Detailed and Complete Alternative Models

  1. MCP73826-4.1VUATR: Similar to MCP73827-4.1VUATR but with a different package.
  2. MCP73828-4.1VUATR: Higher charge current capability (up to 1.5A) compared to MCP73827-4.1VUATR.
  3. MCP73829-4.1VUATR: Lower charge current capability (up to 500mA) compared to MCP73827-4.1VUATR.

These alternative models provide options based on specific requirements, such as package

技術ソリューションにおける MCP73827-4.1VUATR の適用に関連する 10 件の一般的な質問と回答をリストします。

Sure! Here are 10 common questions and answers related to the application of MCP73827-4.1VUATR:

Q1: What is the MCP73827-4.1VUATR? A1: The MCP73827-4.1VUATR is a single-cell, fully-integrated Li-Ion/Li-Polymer battery charge management controller.

Q2: What is the input voltage range for the MCP73827-4.1VUATR? A2: The input voltage range for the MCP73827-4.1VUATR is typically between 3.75V and 6V.

Q3: What is the maximum charge current supported by the MCP73827-4.1VUATR? A3: The MCP73827-4.1VUATR supports a maximum charge current of 500mA.

Q4: Can the MCP73827-4.1VUATR be used with both Li-Ion and Li-Polymer batteries? A4: Yes, the MCP73827-4.1VUATR is compatible with both Li-Ion and Li-Polymer batteries.

Q5: Does the MCP73827-4.1VUATR have built-in thermal regulation? A5: Yes, the MCP73827-4.1VUATR has built-in thermal regulation to prevent overheating during charging.

Q6: What is the purpose of the STAT pin on the MCP73827-4.1VUATR? A6: The STAT pin provides status indication during charging, such as indicating when the battery is fully charged.

Q7: Can the MCP73827-4.1VUATR be used in portable devices? A7: Yes, the MCP73827-4.1VUATR is commonly used in portable devices like smartphones, tablets, and wearable devices.

Q8: Does the MCP73827-4.1VUATR support trickle charging? A8: Yes, the MCP73827-4.1VUATR supports trickle charging to maintain the battery at a safe voltage level.

Q9: What is the purpose of the PROG pin on the MCP73827-4.1VUATR? A9: The PROG pin allows for programming the charge current using an external resistor.

Q10: Is the MCP73827-4.1VUATR suitable for fast charging applications? A10: No, the MCP73827-4.1VUATR is not designed for fast charging applications. It is more suitable for standard charging scenarios.

Please note that these answers are general and may vary depending on the specific application and requirements.