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BQ294524DRVR
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BQ294524DRVR

Product Overview

Category

BQ294524DRVR belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used for battery protection and monitoring in various electronic devices.

Characteristics

  • Battery protection against overcharging, over-discharging, and short-circuiting.
  • Accurate voltage and current monitoring.
  • Low power consumption.
  • Small form factor.
  • High reliability and durability.

Package

BQ294524DRVR is available in a small outline package (SOT) with a specific pin configuration.

Essence

The essence of BQ294524DRVR lies in its ability to protect batteries from potential damage and ensure their optimal performance.

Packaging/Quantity

This IC is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

  • Input Voltage Range: 2.5V to 28V
  • Operating Temperature Range: -40°C to +85°C
  • Overvoltage Protection Threshold: 4.35V
  • Undervoltage Protection Threshold: 2.5V
  • Overcurrent Detection Threshold: 1.5A
  • Quiescent Current: 10µA (typical)

Detailed Pin Configuration

The BQ294524DRVR IC has the following pin configuration:

  1. VDD: Power supply input
  2. GND: Ground reference
  3. SDA: Serial data input/output
  4. SCL: Serial clock input
  5. ALERT: Alert output
  6. BAT: Battery connection
  7. PROTECT: Battery protection control input
  8. TS: Temperature sense input

Functional Features

  1. Battery Protection: The BQ294524DRVR provides comprehensive protection against overcharging, over-discharging, and short-circuiting, ensuring the safety and longevity of the battery.

  2. Voltage and Current Monitoring: Accurate monitoring of voltage and current levels allows for precise battery management and optimization.

  3. Low Power Consumption: The IC's low quiescent current minimizes power consumption, extending battery life.

  4. Small Form Factor: The compact size of BQ294524DRVR makes it suitable for space-constrained applications.

  5. High Reliability and Durability: This IC is designed to withstand harsh operating conditions, ensuring long-term reliability.

Advantages and Disadvantages

Advantages

  • Comprehensive battery protection.
  • Accurate voltage and current monitoring.
  • Low power consumption.
  • Compact size.
  • High reliability.

Disadvantages

  • Limited compatibility with certain battery chemistries.
  • Requires additional external components for full functionality.

Working Principles

The BQ294524DRVR operates based on a combination of voltage and current sensing techniques. It continuously monitors the battery voltage and current levels, comparing them against predefined thresholds. If any abnormal conditions are detected, such as overcharging or over-discharging, the IC triggers the appropriate protection mechanisms to safeguard the battery.

Detailed Application Field Plans

The BQ294524DRVR is widely used in various applications, including:

  1. Portable Electronics: Smartphones, tablets, and laptops benefit from the battery protection and monitoring capabilities of this IC.

  2. Electric Vehicles: Battery packs in electric vehicles require robust protection and accurate monitoring, making BQ294524DRVR an ideal choice.

  3. Energy Storage Systems: This IC ensures the safety and efficiency of batteries used in renewable energy storage systems.

  4. Medical Devices: Critical medical equipment relies on reliable battery protection, making BQ294524DRVR suitable for use in healthcare applications.

Detailed and Complete Alternative Models

  1. BQ29700: Similar battery protection IC with enhanced features and higher current handling capacity.
  2. BQ29209: Alternative IC with integrated fuel gauge functionality for advanced battery monitoring.
  3. BQ29412: Compact battery protection IC designed specifically for single-cell applications.

These alternative models offer similar functionalities to BQ294524DRVR, catering to different application requirements and specifications.

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Listen Sie 10 häufige Fragen und Antworten im Zusammenhang mit der Anwendung von BQ294524DRVR in technischen Lösungen auf

Sure! Here are 10 common questions and answers related to the application of BQ294524DRVR in technical solutions:

  1. Question: What is the purpose of the BQ294524DRVR?
    Answer: The BQ294524DRVR is a voltage supervisor and protector IC designed to monitor and protect lithium-ion/polymer battery packs.

  2. Question: What is the input voltage range supported by the BQ294524DRVR?
    Answer: The BQ294524DRVR supports an input voltage range of 4V to 28V.

  3. Question: How many cells can the BQ294524DRVR monitor?
    Answer: The BQ294524DRVR can monitor up to 4 series-connected lithium-ion/polymer cells.

  4. Question: What is the purpose of the undervoltage lockout (UVLO) feature?
    Answer: The UVLO feature ensures that the BQ294524DRVR operates only when the input voltage is within the specified range, preventing damage to the circuitry.

  5. Question: Can the BQ294524DRVR detect overvoltage conditions?
    Answer: Yes, the BQ294524DRVR has an overvoltage detection feature that triggers an alert when the monitored voltage exceeds the programmed threshold.

  6. Question: How does the BQ294524DRVR protect against overcurrent conditions?
    Answer: The BQ294524DRVR has built-in overcurrent protection that can be configured to trigger an alert or shut down the system when the current exceeds the set threshold.

  7. Question: Does the BQ294524DRVR have a temperature monitoring feature?
    Answer: Yes, the BQ294524DRVR includes a temperature sensor that can be used to monitor the battery pack's temperature and trigger alerts or shutdowns if it exceeds the specified limits.

  8. Question: Can the BQ294524DRVR be used in automotive applications?
    Answer: Yes, the BQ294524DRVR is suitable for automotive applications and meets the necessary standards for automotive safety and reliability.

  9. Question: What is the purpose of the open-drain output pin on the BQ294524DRVR?
    Answer: The open-drain output pin can be used to drive external devices or provide a signal indicating the status of the monitored voltage or current.

  10. Question: Is the BQ294524DRVR available in different package options?
    Answer: Yes, the BQ294524DRVR is available in various package options, including SOIC-8 and VSSOP-8, providing flexibility for different design requirements.

Please note that these answers are general and may vary depending on the specific application and implementation of the BQ294524DRVR.