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BQ24040DSQT
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BQ24040DSQT

Product Overview

Category

The BQ24040DSQT belongs to the category of battery management and charging integrated circuits.

Use

It is used for managing and charging single-cell Li-ion or Li-polymer batteries in a wide range of portable applications.

Characteristics

  • Input Voltage Range: 4.5V to 6.5V
  • Programmable Charge Current up to 1A
  • Integrated Power FETs for Up to 1A Charge Rate
  • Thermal Regulation and Protection
  • Status Indication Outputs
  • Small 3mm x 3mm QFN Package

Package

The BQ24040DSQT comes in a small 3mm x 3mm QFN package, making it suitable for compact designs.

Essence

The essence of the BQ24040DSQT lies in its ability to efficiently manage and charge single-cell Li-ion or Li-polymer batteries with integrated protection features.

Packaging/Quantity

It is typically available in tape and reel packaging with a quantity of 2500 units per reel.

Specifications

  • Input Voltage Range: 4.5V to 6.5V
  • Charge Voltage: 4.2V
  • Charge Current: Programmable up to 1A
  • Operating Temperature Range: -40°C to 85°C
  • Package: 3mm x 3mm QFN

Detailed Pin Configuration

The detailed pin configuration of the BQ24040DSQT includes input voltage (VIN), system voltage (SYS), battery voltage (BAT), ground (GND), and status indication outputs.

Functional Features

  • Integrated power FETs for efficient charging
  • Thermal regulation and protection
  • Programmable charge current for flexibility
  • Status indication outputs for monitoring

Advantages and Disadvantages

Advantages

  • Compact package size
  • Programmable charge current
  • Integrated protection features

Disadvantages

  • Limited to single-cell battery management

Working Principles

The BQ24040DSQT operates by regulating the charging current and voltage to ensure safe and efficient charging of single-cell Li-ion or Li-polymer batteries. It incorporates thermal regulation and protection features to safeguard the battery during charging.

Detailed Application Field Plans

The BQ24040DSQT is well-suited for use in various portable electronic devices such as smartphones, tablets, portable media players, and handheld gaming consoles. Its compact size and integrated features make it ideal for space-constrained applications.

Detailed and Complete Alternative Models

  • BQ24072
  • BQ24105
  • BQ24210

In conclusion, the BQ24040DSQT is a versatile battery management and charging IC designed for single-cell Li-ion or Li-polymer batteries in portable applications. With its compact package, programmable charge current, and integrated protection features, it offers an efficient solution for managing and charging batteries in a variety of electronic devices.

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技術ソリューションにおける BQ24040DSQT 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。

  1. Question: What is the input voltage range for BQ24040DSQT?
    Answer: The input voltage range for BQ24040DSQT is 4.35V to 6.5V.

  2. Question: What is the maximum charge current supported by BQ24040DSQT?
    Answer: BQ24040DSQT supports a maximum charge current of 1A.

  3. Question: Can BQ24040DSQT be used for charging single-cell Li-Ion or Li-Polymer batteries?
    Answer: Yes, BQ24040DSQT is designed for charging single-cell Li-Ion or Li-Polymer batteries.

  4. Question: Does BQ24040DSQT have overvoltage protection?
    Answer: Yes, BQ24040DSQT features overvoltage protection to ensure safe charging.

  5. Question: What is the thermal regulation feature in BQ24040DSQT?
    Answer: BQ24040DSQT includes thermal regulation to limit the charge current when the IC temperature exceeds a certain threshold.

  6. Question: Can BQ24040DSQT operate in a wide temperature range?
    Answer: Yes, BQ24040DSQT can operate in a wide temperature range from -40°C to 125°C.

  7. Question: Is BQ24040DSQT suitable for portable applications?
    Answer: Yes, BQ24040DSQT is suitable for portable applications due to its compact size and low power consumption.

  8. Question: What is the status indication feature in BQ24040DSQT?
    Answer: BQ24040DSQT provides status indication through an open-drain CHG pin.

  9. Question: Can BQ24040DSQT support USB input for charging?
    Answer: Yes, BQ24040DSQT can support USB input for charging applications.

  10. Question: Does BQ24040DSQT have built-in battery detection and safety timers?
    Answer: Yes, BQ24040DSQT includes built-in battery detection and safety timers for enhanced safety during charging.