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BQ27350PWRG4
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BQ27350PWRG4

Product Overview

Category: Integrated Circuit (IC)

Use: Battery Fuel Gauge

Characteristics: - Accurately measures battery capacity - Monitors battery health and state of charge - Provides information for battery management systems

Package: TSSOP-16

Essence: The BQ27350PWRG4 is a highly integrated IC designed for accurate measurement and monitoring of battery capacity in various applications.

Packaging/Quantity: The BQ27350PWRG4 is available in a TSSOP-16 package. It is typically sold in reels of 2500 units.

Specifications

The BQ27350PWRG4 has the following specifications:

  • Operating Voltage Range: 2.5V to 4.8V
  • Battery Capacity Measurement Range: 10mAh to 65,535mAh
  • Communication Interface: I2C
  • Temperature Measurement Range: -40°C to +85°C
  • Accuracy: ±1% (typical)
  • Low Power Consumption: 100µA (typical)

Detailed Pin Configuration

The BQ27350PWRG4 has a total of 16 pins. The pin configuration is as follows:

  1. VSS - Ground
  2. SDA - I2C Data Line
  3. SCL - I2C Clock Line
  4. TS - Temperature Sense Input
  5. BAT - Battery Voltage Sense Input
  6. VDD - Supply Voltage
  7. GPOUT - General Purpose Output
  8. VSS - Ground
  9. VSS - Ground
  10. VSS - Ground
  11. VSS - Ground
  12. VSS - Ground
  13. VSS - Ground
  14. VSS - Ground
  15. VSS - Ground
  16. VSS - Ground

Functional Features

The BQ27350PWRG4 offers the following functional features:

  • Accurate battery capacity measurement
  • Real-time monitoring of battery health and state of charge
  • Integrated protection against overcharging and over-discharging
  • Temperature sensing for accurate performance in various environments
  • I2C communication interface for easy integration with microcontrollers

Advantages and Disadvantages

Advantages: - Accurate measurement of battery capacity - Real-time monitoring of battery health - Integrated protection features - Wide operating voltage range - Low power consumption

Disadvantages: - Limited battery capacity measurement range - Requires I2C communication interface for data retrieval

Working Principles

The BQ27350PWRG4 works by continuously monitoring the battery voltage, current, and temperature to accurately estimate the remaining capacity. It utilizes advanced algorithms to compensate for battery aging and temperature variations, providing reliable information for battery management systems.

Detailed Application Field Plans

The BQ27350PWRG4 is widely used in various applications that require accurate battery capacity measurement and monitoring. Some of the common application fields include:

  1. Portable electronic devices (e.g., smartphones, tablets)
  2. Wearable devices (e.g., smartwatches, fitness trackers)
  3. Medical devices (e.g., portable monitors, insulin pumps)
  4. Industrial equipment (e.g., handheld tools, wireless sensors)
  5. Automotive systems (e.g., electric vehicles, hybrid vehicles)

Detailed and Complete Alternative Models

  1. BQ27450EVM-687: Similar functionality with extended battery capacity measurement range.
  2. BQ27500PWRG4: Higher accuracy and additional features like coulomb counting.
  3. BQ27742EVM-687: Enhanced battery protection features and higher temperature measurement range.

These alternative models offer similar functionalities to the BQ27350PWRG4, with some variations in specifications and additional features.

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Listen Sie 10 häufige Fragen und Antworten im Zusammenhang mit der Anwendung von BQ27350PWRG4 in technischen Lösungen auf

Sure! Here are 10 common questions and answers related to the application of BQ27350PWRG4 in technical solutions:

  1. Q: What is the BQ27350PWRG4? A: The BQ27350PWRG4 is a fuel gauge integrated circuit (IC) designed for accurately measuring battery capacity in portable devices.

  2. Q: What are the key features of the BQ27350PWRG4? A: Some key features include accurate voltage, current, temperature measurement, support for single-cell Li-Ion or Li-Polymer batteries, and an I2C interface for communication.

  3. Q: How does the BQ27350PWRG4 measure battery capacity? A: The IC uses a combination of voltage, current, and temperature measurements to estimate the remaining battery capacity.

  4. Q: Can the BQ27350PWRG4 be used with different battery chemistries? A: No, the BQ27350PWRG4 is specifically designed for use with single-cell Li-Ion or Li-Polymer batteries.

  5. Q: What is the accuracy of the BQ27350PWRG4's capacity estimation? A: The BQ27350PWRG4 has a typical capacity estimation accuracy of ±1% under normal operating conditions.

  6. Q: Does the BQ27350PWRG4 support battery protection functions? A: Yes, the IC includes built-in protection features such as overvoltage, undervoltage, and overcurrent protection.

  7. Q: Can the BQ27350PWRG4 be used in low-power applications? A: Yes, the BQ27350PWRG4 has a low quiescent current consumption, making it suitable for low-power devices.

  8. Q: How is the BQ27350PWRG4 controlled and configured? A: The IC can be controlled and configured through an I2C interface using commands and registers.

  9. Q: Does the BQ27350PWRG4 support battery pack authentication? A: Yes, the IC supports SHA-1/HMAC-based authentication to ensure the battery pack's authenticity.

  10. Q: Are there any evaluation modules or development tools available for the BQ27350PWRG4? A: Yes, Texas Instruments provides evaluation modules and software tools to aid in the development and testing of applications using the BQ27350PWRG4.

Please note that these answers are general and may vary depending on the specific implementation and requirements of your technical solution.