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MAX173CWG
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MAX173CWG

Product Overview

  • Category: Integrated Circuits (ICs)
  • Use: Battery Fuel Gauge
  • Characteristics:
    • Monitors battery capacity and provides accurate fuel gauge information
    • Supports multiple battery chemistries
    • Low power consumption
    • Small form factor
  • Package: 24-pin TSSOP
  • Essence: Accurate battery monitoring and fuel gauge solution
  • Packaging/Quantity: Tape & Reel, 250 units per reel

Specifications

  • Input Voltage Range: 2.5V to 4.8V
  • Operating Temperature Range: -40°C to +85°C
  • Battery Chemistry Support: Li-Ion, Li-Polymer, LiFePO4
  • Fuel Gauge Accuracy: ±1%
  • Communication Interface: I2C
  • Dimensions: 9.7mm x 6.4mm x 1.1mm

Pin Configuration

The MAX173CWG has a total of 24 pins. The pin configuration is as follows:

  1. VDD
  2. SDA
  3. SCL
  4. GND
  5. BAT
  6. TS
  7. ALERT
  8. INT
  9. VSS
  10. VSS
  11. VSS
  12. VSS
  13. VSS
  14. VSS
  15. VSS
  16. VSS
  17. VSS
  18. VSS
  19. VSS
  20. VSS
  21. VSS
  22. VSS
  23. VSS
  24. VSS

Functional Features

  • Accurate battery voltage and current measurement
  • Coulomb counter for precise capacity estimation
  • Temperature sensing for thermal management
  • Advanced algorithms for accurate fuel gauge calculation
  • Integrated protection features for battery safety

Advantages and Disadvantages

Advantages: - Accurate fuel gauge information - Supports multiple battery chemistries - Low power consumption - Small form factor - Integrated protection features

Disadvantages: - Limited to I2C communication interface - Requires external components for complete battery monitoring solution

Working Principles

The MAX173CWG uses a combination of voltage, current, and temperature measurements to accurately estimate the remaining capacity of a battery. It employs advanced algorithms to compensate for battery aging and temperature variations, providing reliable fuel gauge information.

The IC continuously monitors the battery voltage and current, while also measuring the battery temperature. These measurements are used to calculate the state of charge (SOC) and remaining capacity of the battery. The fuel gauge accuracy is ensured through precise Coulomb counting and temperature compensation techniques.

Detailed Application Field Plans

The MAX173CWG is widely used in various applications that require accurate battery monitoring and fuel gauge functionality. 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 medical equipment, patient monitoring systems)
  4. Industrial equipment (e.g., handheld tools, measurement instruments)
  5. Automotive applications (e.g., electric vehicles, hybrid vehicles)

Detailed and Complete Alternative Models

  1. MAX17043X+T: Similar functionality with lower pin count (8-pin TDFN package)
  2. MAX17201G+U: Higher accuracy fuel gauge with extended temperature range (16-pin TSSOP package)
  3. MAX17055G+T: Fuel gauge with built-in battery protector and charger (12-pin TDFN package)
  4. MAX17222G+T: Fuel gauge with integrated power path management (12-pin TDFN package)
  5. MAX17048G+T: Ultra-low power fuel gauge with extended battery life (8-pin TDFN package)

These alternative models offer similar or enhanced features compared to the MAX173CWG, catering to different application requirements.

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技術ソリューションにおける MAX173CWG 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 MAX173CWG in technical solutions:

  1. Q: What is MAX173CWG? A: MAX173CWG is a high-accuracy fuel gauge IC (integrated circuit) designed for monitoring the state of charge (SOC) of lithium-ion batteries.

  2. Q: What are the key features of MAX173CWG? A: The key features of MAX173CWG include accurate SOC estimation, low power consumption, temperature compensation, programmable alerts, and I2C communication interface.

  3. Q: How does MAX173CWG estimate the state of charge? A: MAX173CWG uses a sophisticated algorithm that combines voltage, current, and temperature measurements to accurately estimate the state of charge of the battery.

  4. Q: Can MAX173CWG be used with any type of lithium-ion battery? A: Yes, MAX173CWG can be used with various types of lithium-ion batteries, including LiCoO2, LiFePO4, and LiMnO2 chemistries.

  5. Q: What is the typical accuracy of MAX173CWG in estimating the state of charge? A: MAX173CWG has a typical accuracy of ±1% in estimating the state of charge, which makes it suitable for applications requiring precise battery monitoring.

  6. Q: Can MAX173CWG measure battery capacity degradation over time? A: Yes, MAX173CWG can track battery capacity degradation by continuously monitoring the battery's full charge capacity (FCC) and reporting it to the host system.

  7. Q: Does MAX173CWG support battery pack balancing? A: No, MAX173CWG does not have built-in support for battery pack balancing. It focuses on accurate SOC estimation and capacity monitoring.

  8. Q: Can MAX173CWG operate in a wide temperature range? A: Yes, MAX173CWG is designed to operate in a wide temperature range, typically from -40°C to +85°C, making it suitable for various environments.

  9. Q: Is MAX173CWG compatible with popular microcontrollers and development platforms? A: Yes, MAX173CWG supports I2C communication, which is widely supported by microcontrollers and development platforms, making it easy to integrate into existing systems.

  10. Q: Are there any evaluation kits or reference designs available for MAX173CWG? A: Yes, Maxim Integrated provides evaluation kits and reference designs for MAX173CWG, which can help developers quickly prototype and evaluate its performance in their applications.

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