STMicroelectronics
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STC3115IJT
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STC3115IJT

Product Overview

Category

STC3115IJT belongs to the category of integrated circuits (ICs).

Use

It is primarily used for battery fuel gauge applications.

Characteristics

  • Integrated circuit
  • Battery fuel gauge functionality
  • High accuracy measurement
  • Low power consumption

Package

STC3115IJT is available in a small outline transistor (SOT) package.

Essence

The essence of STC3115IJT lies in its ability to accurately measure and monitor the state of charge (SOC) and state of health (SOH) of batteries.

Packaging/Quantity

STC3115IJT is typically packaged in reels and comes in quantities of 2500 units per reel.

Specifications

  • Operating voltage: 2.7V to 4.5V
  • Temperature range: -40°C to +85°C
  • Measurement resolution: 78µV
  • Current measurement range: ±3A
  • Fuel gauge accuracy: ±1%
  • Communication interface: I2C

Detailed Pin Configuration

STC3115IJT has the following pin configuration:

  1. VDD: Power supply input
  2. GND: Ground reference
  3. SDA: Serial data line for I2C communication
  4. SCL: Serial clock line for I2C communication
  5. BAT: Battery voltage sense input
  6. TS: Temperature sense input
  7. IRQ: Interrupt request output
  8. NC: No connection

Functional Features

  1. Accurate SOC and SOH measurement: STC3115IJT provides precise measurements of battery SOC and SOH, enabling reliable monitoring of battery performance.
  2. Low power consumption: The IC itself consumes minimal power, ensuring efficient battery usage.
  3. I2C communication interface: STC3115IJT supports I2C communication, allowing easy integration with microcontrollers and other devices.
  4. Temperature compensation: The IC incorporates temperature compensation to ensure accurate measurements across a wide temperature range.

Advantages

  • High accuracy measurement
  • Low power consumption
  • Easy integration with microcontrollers
  • Temperature compensation for accurate measurements

Disadvantages

  • Limited current measurement range (+/- 3A)
  • Requires external components for complete battery fuel gauge implementation

Working Principles

STC3115IJT works by measuring the voltage and current of the battery and using this information to calculate the SOC and SOH. It utilizes an internal algorithm that takes into account factors such as temperature and discharge rate to provide accurate readings.

Detailed Application Field Plans

STC3115IJT is commonly used in various applications, including: 1. Portable electronic devices (e.g., smartphones, tablets) 2. Electric vehicles 3. Power banks 4. Energy storage systems

Detailed and Complete Alternative Models

Some alternative models to STC3115IJT include: 1. MAX17043 2. BQ27441 3. LTC2943 4. DS2786

These models offer similar functionality and can be considered as alternatives depending on specific requirements and preferences.

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רשום 10 שאלות ותשובות נפוצות הקשורות ליישום של STC3115IJT בפתרונות טכניים

Sure! Here are 10 common questions and answers related to the application of STC3115IJT in technical solutions:

  1. Q: What is the STC3115IJT? A: The STC3115IJT is a fuel gauge IC (Integrated Circuit) designed for accurately monitoring the state of charge (SOC) and voltage of single-cell Li-Ion batteries.

  2. Q: How does the STC3115IJT measure battery SOC? A: The STC3115IJT uses coulomb counting, which measures the current flowing into and out of the battery to calculate the SOC.

  3. Q: Can the STC3115IJT be used with different battery chemistries? A: No, the STC3115IJT is specifically designed for use with single-cell Li-Ion batteries.

  4. Q: What is the accuracy of the STC3115IJT in measuring battery SOC? A: The STC3115IJT has an accuracy of typically ±0.25% in measuring battery SOC.

  5. Q: Does the STC3115IJT support temperature compensation? A: Yes, the STC3115IJT has built-in temperature compensation to ensure accurate SOC measurements across different temperatures.

  6. Q: Can the STC3115IJT be used in portable devices? A: Yes, the STC3115IJT is commonly used in portable devices such as smartphones, tablets, and wearables.

  7. Q: Does the STC3115IJT have any safety features? A: Yes, the STC3115IJT includes overvoltage, undervoltage, and overcurrent protection to ensure safe battery operation.

  8. Q: Can the STC3115IJT communicate with a microcontroller? A: Yes, the STC3115IJT supports I2C communication, allowing it to interface with microcontrollers for data exchange.

  9. Q: What is the operating voltage range of the STC3115IJT? A: The STC3115IJT operates from 2.7V to 4.5V, making it suitable for various battery-powered applications.

  10. Q: Is the STC3115IJT available in different package options? A: Yes, the STC3115IJT is available in a compact 8-pin SOIC package, which is commonly used in electronic devices.

Please note that these answers are general and may vary depending on the specific application and implementation of the STC3115IJT in a technical solution.