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BQ20Z80DBTR
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BQ20Z80DBTR

Overview

Product Category

BQ20Z80DBTR belongs to the category of battery fuel gauge integrated circuits.

Use

This product is primarily used for accurately measuring and monitoring the state of charge (SOC) and remaining capacity of rechargeable batteries.

Characteristics

  • Accurate SOC measurement
  • Reliable capacity estimation
  • Low power consumption
  • Compact size
  • Easy integration into battery-powered devices

Package

BQ20Z80DBTR is available in a small 30-pin TSSOP package.

Essence

The essence of BQ20Z80DBTR lies in its ability to provide accurate and reliable information about the battery's state of charge, enabling efficient utilization of battery power.

Packaging/Quantity

This product is typically sold in reels containing 2500 units per reel.

Specifications

  • Operating Voltage: 2.7V to 4.5V
  • Operating Temperature Range: -40°C to +85°C
  • Communication Interface: I2C
  • Battery Chemistry Support: Li-Ion, Li-Polymer, LiFePO4
  • Cell Voltage Measurement Resolution: 10mV
  • Capacity Measurement Resolution: 1mAh
  • Standby Current: 8µA (typical)

Detailed Pin Configuration

  1. VSS - Ground
  2. SDA - I2C Data Line
  3. SCL - I2C Clock Line
  4. TS1 - Temperature Sense Input 1
  5. TS2 - Temperature Sense Input 2
  6. BAT - Battery Voltage Sense Input
  7. XALERT - External Alert Output
  8. SRP - System Reset Input
  9. VDD - Power Supply
  10. VSS - Ground
  11. VSS - Ground
  12. VSS - Ground
  13. VSS - Ground
  14. VSS - Ground
  15. VSS - Ground
  16. VSS - Ground
  17. VSS - Ground
  18. VSS - Ground
  19. VSS - Ground
  20. VSS - Ground
  21. VSS - Ground
  22. VSS - Ground
  23. VSS - Ground
  24. VSS - Ground
  25. VSS - Ground
  26. VSS - Ground
  27. VSS - Ground
  28. VSS - Ground
  29. VSS - Ground
  30. VDD - Power Supply

Functional Features

  • Accurate measurement of battery voltage and temperature
  • Advanced algorithms for SOC estimation
  • Overvoltage and undervoltage protection
  • Temperature compensation for accurate capacity estimation
  • Programmable alert thresholds
  • Low power consumption in standby mode

Advantages and Disadvantages

Advantages

  • Accurate and reliable SOC measurement
  • Efficient utilization of battery power
  • Compact size allows for easy integration into devices
  • Wide operating voltage range
  • Support for multiple battery chemistries

Disadvantages

  • Limited pin configuration options
  • Requires I2C communication interface support in the host device

Working Principles

BQ20Z80DBTR utilizes a combination of voltage and temperature measurements to estimate the state of charge and remaining capacity of the battery. It employs sophisticated algorithms to compensate for variations in battery performance over time and under different operating conditions.

Detailed Application Field Plans

BQ20Z80DBTR finds applications in various fields, including: 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. Electric vehicles and hybrid electric vehicles 5. Energy storage systems

Detailed and Complete Alternative Models

  1. BQ27441-G1: Similar functionality with enhanced capacity measurement resolution
  2. MAX17043G+: Integrated fuel gauge with additional features like programmable input current limit and coulomb counter
  3. LTC2943: Battery gas gauge system with I2C interface and integrated temperature sensor

These alternative models offer similar capabilities to BQ20Z80DBTR and can be considered based on specific application requirements.

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技術ソリューションにおける BQ20Z80DBTR 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。

Sure! Here are 10 common questions and answers related to the application of BQ20Z80DBTR in technical solutions:

  1. Question: What is the BQ20Z80DBTR?
    Answer: The BQ20Z80DBTR is a battery fuel gauge and protection IC designed for use in portable devices.

  2. Question: What is the purpose of the BQ20Z80DBTR?
    Answer: The BQ20Z80DBTR is used to accurately measure and monitor the state of charge (SOC) and capacity of a battery.

  3. Question: How does the BQ20Z80DBTR communicate with the host system?
    Answer: The BQ20Z80DBTR uses an I2C interface to communicate with the host system.

  4. Question: Can the BQ20Z80DBTR be used with different types of batteries?
    Answer: Yes, the BQ20Z80DBTR is compatible with various types of lithium-ion and lithium-polymer batteries.

  5. Question: Does the BQ20Z80DBTR provide overcharge and over-discharge protection?
    Answer: Yes, the BQ20Z80DBTR includes built-in protection features to prevent overcharging and over-discharging of the battery.

  6. Question: Can the BQ20Z80DBTR estimate the remaining battery runtime?
    Answer: Yes, the BQ20Z80DBTR can provide an estimate of the remaining battery runtime based on the current load and battery capacity.

  7. Question: Is the BQ20Z80DBTR suitable for low-power applications?
    Answer: Yes, the BQ20Z80DBTR has a low quiescent current and is suitable for low-power applications.

  8. Question: Can the BQ20Z80DBTR be used in multi-cell battery packs?
    Answer: Yes, the BQ20Z80DBTR can be used in multi-cell battery packs by connecting multiple ICs in parallel.

  9. Question: Does the BQ20Z80DBTR support temperature monitoring?
    Answer: Yes, the BQ20Z80DBTR has a built-in temperature sensor for accurate temperature monitoring of the battery.

  10. Question: Are there any evaluation tools available for the BQ20Z80DBTR?
    Answer: Yes, Texas Instruments provides evaluation modules and software tools to assist with the development and testing of applications using the BQ20Z80DBTR.