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BQ24311DSGT
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BQ24311DSGT

Product Overview

Category

BQ24311DSGT belongs to the category of integrated circuits (ICs) specifically designed for power management applications.

Use

This product is primarily used for battery charging and system power path management in portable electronic devices such as smartphones, tablets, and wearable devices.

Characteristics

  • Integrated power FETs for efficient power transfer
  • High accuracy voltage regulation
  • Overvoltage protection
  • Reverse current blocking
  • Thermal shutdown protection
  • Small form factor package

Package

BQ24311DSGT is available in a small 10-pin VSON package, which ensures space-saving integration into compact electronic devices.

Essence

The essence of BQ24311DSGT lies in its ability to efficiently manage power flow between the battery and the device, ensuring optimal charging and power delivery.

Packaging/Quantity

This product is typically packaged in reels, with each reel containing a specified quantity of BQ24311DSGT ICs. The exact quantity per reel may vary depending on the manufacturer's specifications.

Specifications

  • Input Voltage Range: 3.5V to 6.45V
  • Output Voltage Range: 3.5V to 6.45V
  • Maximum Charging Current: 2A
  • Operating Temperature Range: -40°C to +85°C
  • Standby Current: <1µA

Detailed Pin Configuration

  1. EN (Enable)
  2. PG (Power Good)
  3. ILIM (Current Limit)
  4. GND (Ground)
  5. BAT (Battery)
  6. SYS (System)
  7. STAT (Status)
  8. TS (Thermal Shutdown)
  9. VBUS (USB Supply)
  10. VREG (Voltage Regulator)

Functional Features

  • Power path management between battery and system
  • Automatic selection between input power sources (USB or adapter)
  • Overvoltage protection for both input and output
  • Reverse current blocking to prevent battery discharge
  • Thermal shutdown protection to prevent overheating

Advantages and Disadvantages

Advantages

  • Efficient power transfer with integrated power FETs
  • High accuracy voltage regulation ensures optimal charging
  • Comprehensive protection features safeguard the device and battery
  • Small form factor package allows for space-saving integration

Disadvantages

  • Limited maximum charging current of 2A may not be suitable for high-power devices
  • Operating temperature range may restrict usage in extreme environments

Working Principles

BQ24311DSGT operates by intelligently managing the power flow between the battery and the system. It automatically selects the appropriate power source (USB or adapter) and regulates the voltage to ensure efficient charging. The integrated power FETs facilitate power transfer, while the various protection features prevent damage from overvoltage, reverse current, and thermal issues.

Detailed Application Field Plans

BQ24311DSGT finds applications in a wide range of portable electronic devices, including but not limited to: - Smartphones - Tablets - Wearable devices - Portable gaming consoles - Bluetooth speakers - GPS devices

Detailed and Complete Alternative Models

  1. BQ24075RGTR - Similar power management IC with a higher maximum charging current of 3A.
  2. BQ24296RGET - Power management IC with additional USB OTG support and programmable charging parameters.
  3. BQ24192IRGER - Integrated charger and power path management IC with a wider input voltage range.

These alternative models offer similar functionality to BQ24311DSGT but may have different specifications and features that cater to specific application requirements.

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רשום 10 שאלות ותשובות נפוצות הקשורות ליישום של BQ24311DSGT בפתרונות טכניים

Sure! Here are 10 common questions and answers related to the application of BQ24311DSGT in technical solutions:

  1. Q: What is the BQ24311DSGT? A: The BQ24311DSGT is a battery charger IC designed for single-cell Li-Ion and Li-Polymer batteries.

  2. Q: What is the input voltage range supported by the BQ24311DSGT? A: The BQ24311DSGT supports an input voltage range from 3.9V to 18V.

  3. Q: Can the BQ24311DSGT charge multiple batteries simultaneously? A: No, the BQ24311DSGT is designed to charge a single-cell battery at a time.

  4. Q: What charging current does the BQ24311DSGT support? A: The BQ24311DSGT supports a charging current up to 1.5A.

  5. Q: Does the BQ24311DSGT have overvoltage protection? A: Yes, the BQ24311DSGT has built-in overvoltage protection to prevent damage to the battery.

  6. Q: Can the BQ24311DSGT be used for fast charging applications? A: Yes, the BQ24311DSGT supports fast charging with its high charging current capability.

  7. Q: Is the BQ24311DSGT compatible with USB power delivery (USB PD)? A: No, the BQ24311DSGT does not support USB PD. It is primarily designed for standard USB charging applications.

  8. Q: Does the BQ24311DSGT have thermal protection features? A: Yes, the BQ24311DSGT includes thermal regulation and protection to prevent overheating.

  9. Q: Can the BQ24311DSGT be used in portable devices like smartphones or tablets? A: Yes, the BQ24311DSGT is commonly used in portable devices to provide efficient and safe battery charging.

  10. Q: Are there any evaluation boards or reference designs available for the BQ24311DSGT? A: Yes, Texas Instruments provides evaluation boards and reference designs that can help with the implementation of the BQ24311DSGT in various applications.

Please note that these answers are general and may vary depending on specific application requirements. It's always recommended to refer to the datasheet and application notes provided by the manufacturer for detailed information.