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BQ24401DG4
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BQ24401DG4 - English Editing Encyclopedia Entry

Product Overview

Category

BQ24401DG4 belongs to the category of integrated circuits (ICs) specifically designed for battery charging applications.

Use

This product is primarily used for charging rechargeable batteries, providing a reliable and efficient charging solution.

Characteristics

  • Integrated circuit designed for battery charging
  • High efficiency charging algorithm
  • Wide input voltage range
  • Overvoltage protection
  • Temperature monitoring and control
  • Reverse polarity protection

Package

BQ24401DG4 is available in a small outline package (SOP) with 8 pins. This package offers ease of integration into various electronic devices.

Essence

The essence of BQ24401DG4 lies in its ability to provide a safe and efficient charging solution for rechargeable batteries.

Packaging/Quantity

The product is typically packaged in reels or tubes, containing a specific quantity of ICs per package. The exact packaging and quantity may vary depending on the manufacturer.

Specifications

  • Input Voltage Range: 4.5V to 28V
  • Charging Current Range: 50mA to 2A
  • Operating Temperature Range: -40°C to +85°C
  • Output Voltage Accuracy: ±1%
  • Standby Current: <10µA

Detailed Pin Configuration

  1. VCC: Power supply input
  2. GND: Ground reference
  3. BAT: Battery connection point
  4. PROG: Charging current programming pin
  5. STAT: Status output pin
  6. TS: Temperature sense input
  7. VFB: Feedback voltage input
  8. ISET: Current limit programming pin

Functional Features

  • Constant current and constant voltage charging modes
  • Automatic detection of battery voltage and selection of appropriate charging mode
  • Charge termination based on voltage and temperature thresholds
  • LED indication for charging status
  • Adjustable charging current through external resistor

Advantages and Disadvantages

Advantages

  • High charging efficiency
  • Wide input voltage range allows compatibility with various power sources
  • Comprehensive protection features ensure safe charging
  • LED indication provides visual feedback on charging status
  • Flexible charging current adjustment

Disadvantages

  • Limited maximum charging current compared to some specialized chargers
  • Requires external components for complete charging circuit implementation

Working Principles

BQ24401DG4 operates based on a constant current and constant voltage charging algorithm. It automatically detects the battery voltage and selects the appropriate charging mode accordingly. The IC monitors the battery voltage and temperature, terminating the charging process when predefined thresholds are reached. This ensures optimal charging while preventing overcharging or overheating.

Detailed Application Field Plans

BQ24401DG4 finds applications in various fields where rechargeable batteries need to be charged efficiently and safely. Some potential application areas include: - Portable electronic devices (e.g., smartphones, tablets) - Power banks - Electric vehicles - Solar-powered systems - Industrial equipment

Detailed and Complete Alternative Models

  1. BQ2000: Integrated circuit for battery charging with similar features but different pin configuration.
  2. LTC4000: High-performance battery charger IC with advanced charging algorithms and additional protection features.
  3. MCP73871: Single-cell Li-ion/Li-polymer charge management controller with integrated pass transistor.

These alternative models offer similar functionality and can be considered as alternatives to BQ24401DG4 depending on specific requirements and design constraints.

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10 domande e risposte comuni relative all'applicazione di BQ24401DG4 nelle soluzioni tecniche

Sure! Here are 10 common questions and answers related to the application of BQ24401DG4 in technical solutions:

  1. Question: What is the BQ24401DG4?
    Answer: The BQ24401DG4 is a battery charger IC designed for single-cell Li-Ion and Li-Polymer batteries.

  2. Question: What is the input voltage range supported by the BQ24401DG4?
    Answer: The BQ24401DG4 supports an input voltage range of 4.5V to 26V.

  3. Question: Can the BQ24401DG4 charge multiple batteries simultaneously?
    Answer: No, the BQ24401DG4 is designed to charge a single-cell battery at a time.

  4. Question: Does the BQ24401DG4 have overcharge protection?
    Answer: Yes, the BQ24401DG4 has built-in overcharge protection to prevent damage to the battery.

  5. Question: What is the maximum charging current supported by the BQ24401DG4?
    Answer: The BQ24401DG4 can support a maximum charging current of 1A.

  6. Question: Can the BQ24401DG4 be used for fast charging?
    Answer: No, the BQ24401DG4 is not designed for fast charging applications.

  7. Question: Does the BQ24401DG4 have thermal shutdown protection?
    Answer: Yes, the BQ24401DG4 has thermal shutdown protection to prevent overheating.

  8. Question: Can the BQ24401DG4 be used with other battery chemistries like NiMH or lead-acid?
    Answer: No, the BQ24401DG4 is specifically designed for Li-Ion and Li-Polymer batteries.

  9. Question: Does the BQ24401DG4 have a built-in voltage regulator?
    Answer: No, the BQ24401DG4 does not have a built-in voltage regulator.

  10. Question: Can the BQ24401DG4 be used in portable electronic devices?
    Answer: Yes, the BQ24401DG4 is commonly used in portable electronic devices like smartphones, tablets, and portable power banks.

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