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BQ24381DSGR
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BQ24381DSGR

Product Overview

Category

BQ24381DSGR belongs to the category of integrated circuits (ICs) used in power management applications.

Use

This IC is specifically designed for battery charging and system power path management in portable electronic devices.

Characteristics

  • Efficient power management solution
  • Compact size and low power consumption
  • High charging efficiency and accuracy
  • Advanced protection features for safe operation

Package

BQ24381DSGR is available in a small 10-pin VSON package, which ensures easy integration into various electronic devices.

Essence

The essence of BQ24381DSGR lies in its ability to efficiently manage power flow between the battery and the device, ensuring optimal charging and power delivery.

Packaging/Quantity

This IC is typically sold in reels containing a specified quantity, such as 2500 units per reel.

Specifications

  • Input Voltage Range: 3.5V - 18V
  • Output Voltage Range: 3.5V - 18V
  • Charging Current Range: 100mA - 2A
  • Operating Temperature Range: -40°C to +85°C
  • Integrated Protection Features: Overvoltage, Overcurrent, and Thermal Protection

Detailed Pin Configuration

  1. VIN: Input voltage pin
  2. GND: Ground pin
  3. STAT: Status output pin
  4. PG: Power good output pin
  5. TS: Thermistor input pin
  6. BAT: Battery voltage sense pin
  7. ISET: Charging current set pin
  8. ILIM: Input current limit pin
  9. EN: Enable pin
  10. VBUS: USB voltage sense pin

Functional Features

  • Automatic power source selection between USB and adapter inputs
  • Dynamic power path management for simultaneous charging and discharging
  • Programmable charging current limit
  • Battery temperature monitoring and protection
  • Fault detection and reporting through status and power good outputs

Advantages and Disadvantages

Advantages

  • Efficient power management for extended battery life
  • Compact size for space-constrained applications
  • Comprehensive protection features ensure safe operation
  • Flexible charging current control for different battery types

Disadvantages

  • Limited input voltage range may not be suitable for certain applications requiring higher voltages
  • Lack of built-in communication protocols for advanced charging techniques

Working Principles

BQ24381DSGR operates by intelligently managing the power flow between the input source (USB or adapter) and the battery, as well as the power delivery to the device. It automatically selects the appropriate power source and dynamically adjusts the power path based on the system requirements. The IC also monitors the battery temperature and implements necessary protection mechanisms to prevent overcharging or overheating.

Detailed Application Field Plans

BQ24381DSGR finds extensive application in various portable electronic devices, including but not limited to: - Smartphones and tablets - Wearable devices - Portable gaming consoles - Wireless headphones - GPS navigation systems

Detailed and Complete Alternative Models

  1. BQ24075RGTR: Similar power management IC with a wider input voltage range.
  2. BQ24296RGER: Integrated circuit offering additional communication protocols for advanced charging techniques.
  3. BQ25120YFPR: Power management solution specifically designed for ultra-low-power applications.

Note: These alternative models provide similar functionalities but may have different specifications and pin configurations.

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Liste 10 almindelige spørgsmål og svar relateret til anvendelsen af BQ24381DSGR i tekniske løsninger

Sure! Here are 10 common questions and answers related to the application of BQ24381DSGR in technical solutions:

  1. Question: What is the BQ24381DSGR?
    Answer: The BQ24381DSGR is a battery charger controller IC designed for single-cell Li-ion or Li-polymer batteries.

  2. Question: What is the input voltage range supported by the BQ24381DSGR?
    Answer: The BQ24381DSGR supports an input voltage range of 3.5V to 6.45V.

  3. Question: Can the BQ24381DSGR charge multiple batteries simultaneously?
    Answer: No, the BQ24381DSGR is designed to charge a single-cell battery at a time.

  4. Question: Does the BQ24381DSGR provide overvoltage protection?
    Answer: Yes, the BQ24381DSGR provides overvoltage protection to prevent damage to the battery during charging.

  5. Question: What is the maximum charging current supported by the BQ24381DSGR?
    Answer: The BQ24381DSGR supports a maximum charging current of 1.5A.

  6. Question: Can the BQ24381DSGR be used in portable devices?
    Answer: Yes, the BQ24381DSGR is suitable for use in portable devices such as smartphones, tablets, and wearable devices.

  7. Question: Does the BQ24381DSGR have built-in thermal protection?
    Answer: Yes, the BQ24381DSGR includes thermal protection to prevent overheating during charging.

  8. Question: Can the BQ24381DSGR be used with different battery chemistries?
    Answer: No, the BQ24381DSGR is specifically designed for Li-ion or Li-polymer batteries and may not be suitable for other chemistries.

  9. Question: Does the BQ24381DSGR support fast charging?
    Answer: Yes, the BQ24381DSGR supports fast charging with adjustable charging current and voltage limits.

  10. Question: Is the BQ24381DSGR easy to integrate into existing designs?
    Answer: Yes, the BQ24381DSGR is available in a small package and offers a simple interface, making it relatively easy to integrate into existing designs.

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 datasheet and consult the manufacturer for detailed information.