Microchip Technology
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MCP73827-4.2VUA
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MCP73827-4.2VUA

Product Overview

Category

The MCP73827-4.2VUA belongs to the category of battery charging management 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
  • Temperature monitoring and protection
  • Small form factor package

Package

The MCP73827-4.2VUA is available in a compact 10-pin MSOP 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 battery management.

Packaging/Quantity

The MCP73827-4.2VUA is typically sold in reels containing 250 units per reel.

Specifications

  • Input Voltage Range: 3.75V to 6V
  • Charge Current: Up to 1A
  • Programmable Charge Termination Current: 0.5x, 1x, 2x, 4x
  • Preconditioning Threshold: 2.9V
  • Automatic Recharge Threshold: 2.8V
  • Temperature Monitoring Range: -40°C to +85°C
  • Package Type: 10-pin MSOP

Detailed Pin Configuration

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

Functional Features

  1. Charge Termination Current Programming: The PROG pin allows the user to program the charge termination current, providing flexibility based on battery requirements.
  2. Status Output: The STAT pin provides information about the charging status, allowing for easy monitoring and control.
  3. Temperature Monitoring and Protection: The TS pin enables temperature sensing, ensuring safe charging by monitoring the battery temperature.
  4. Automatic Recharge: The MCP73827-4.2VUA automatically initiates recharge when the battery voltage drops below a predefined threshold, simplifying the charging process.
  5. Preconditioning: This feature allows for the safe charging of deeply discharged cells by preconditioning them before initiating the regular charging cycle.

Advantages and Disadvantages

Advantages

  • Wide input voltage range allows for compatibility with various power sources.
  • Programmable charge termination current offers flexibility for different battery types.
  • Temperature monitoring ensures safe charging and protects the battery from damage.
  • Automatic recharge feature simplifies the charging process.
  • Small form factor package saves board space.

Disadvantages

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

Working Principles

The MCP73827-4.2VUA operates based on a constant current/constant voltage (CC/CV) charging algorithm. It starts by supplying a constant current to the battery until the voltage reaches the programmed charge termination current level. At this point, the charger switches to a constant voltage mode, maintaining a steady voltage while reducing the charging current. Once the battery is fully charged, the charger enters a trickle charge mode to keep the battery topped up.

Detailed Application Field Plans

The MCP73827-4.2VUA finds applications in various portable electronic devices, such as smartphones, tablets, digital cameras, and portable gaming consoles. It is also suitable for battery-powered IoT devices, wearable technology, and other portable consumer electronics.

Detailed and Complete Alternative Models

  1. MCP73826-4.2VUA: Similar to the MCP73827-4.2VUA but with a lower charge current capability of up to 500mA.
  2. MCP73828-4.2VUA: Similar to the MCP73827-4.2VUA but with a higher charge current capability of up to 1.5A.
  3. MCP73829-4.2VUA: Similar to the MCP73827-4.2VUA but with additional features like thermal regulation and battery temperature monitoring.

These alternative models provide options with varying charge currents and additional features to cater to different application requirements.

In conclusion, the MCP73827-4.2VUA is a versatile battery charging management IC designed for single-cell Li-Ion or Li-Po batteries. With its compact package, programmable features, and safety mechanisms, it offers efficient and reliable charging

قم بإدراج 10 أسئلة وإجابات شائعة تتعلق بتطبيق MCP73827-4.2VUA في الحلول التقنية

Sure! Here are 10 common questions and answers related to the application of MCP73827-4.2VUA:

  1. Q: What is the MCP73827-4.2VUA? A: The MCP73827-4.2VUA is a single-cell, fully-integrated Li-Ion/Li-Polymer battery charger IC.

  2. Q: What is the input voltage range for the MCP73827-4.2VUA? A: The input voltage range is typically between 4.5V and 6.0V.

  3. Q: What is the maximum charge current supported by the MCP73827-4.2VUA? A: The MCP73827-4.2VUA supports a maximum charge current of 500mA.

  4. Q: Can the MCP73827-4.2VUA charge multiple cells in series? A: No, the MCP73827-4.2VUA is designed to charge a single-cell Li-Ion or Li-Polymer battery only.

  5. Q: Does the MCP73827-4.2VUA have built-in thermal regulation? A: Yes, the MCP73827-4.2VUA has built-in thermal regulation to prevent overheating during charging.

  6. Q: What is the purpose of the STAT pin on the MCP73827-4.2VUA? A: The STAT pin provides status indication during charging, such as charging in progress, charge complete, or fault conditions.

  7. Q: Can I use the MCP73827-4.2VUA with a USB power source? A: Yes, the MCP73827-4.2VUA can be used with a USB power source, as long as the input voltage falls within the specified range.

  8. Q: Is there a minimum battery capacity requirement for the MCP73827-4.2VUA? A: No, there is no specific minimum battery capacity requirement for the MCP73827-4.2VUA.

  9. Q: Can I use the MCP73827-4.2VUA in a portable device that requires simultaneous charging and discharging? A: Yes, the MCP73827-4.2VUA supports charging and discharging simultaneously, as long as the load current does not exceed the charge current.

  10. Q: Are there any recommended external components to use with the MCP73827-4.2VUA? A: Yes, it is recommended to use an input capacitor, an output capacitor, and a resistor for setting the charge current. The datasheet provides detailed guidelines for selecting these components.

Please note that these answers are general and may vary depending on the specific application and requirements. It is always recommended to refer to the MCP73827-4.2VUA datasheet and consult with the manufacturer for accurate and detailed information.