Texas Instruments
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BQ29411PWR
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BQ29411PWR

Product Overview

Category

BQ29411PWR belongs to the category of integrated circuits (ICs).

Use

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

Characteristics

  • Battery protection against overcharging, over-discharging, and short circuits.
  • Accurate voltage and current monitoring.
  • Low power consumption.
  • Wide operating temperature range.
  • Small form factor.

Package

The BQ29411PWR is available in a small outline package (SOP) with 16 pins.

Essence

The essence of BQ29411PWR lies in its ability to safeguard batteries from potential damage by providing reliable protection and monitoring features.

Packaging/Quantity

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

Specifications

  • Supply Voltage: 2.5V to 6V
  • Operating Temperature Range: -40°C to +85°C
  • Overcharge Detection Voltage: 4.2V to 4.4V
  • Overdischarge Detection Voltage: 2.3V to 3.0V
  • Short Circuit Detection Threshold: 20mV to 100mV
  • Quiescent Current: 10µA (typical)

Detailed Pin Configuration

  1. VSS: Ground
  2. VDD: Power supply input
  3. BAT: Battery connection
  4. PROTECT: Output indicating battery protection status
  5. SDA: I2C data line
  6. SCL: I2C clock line
  7. NC: No connection
  8. GATE: Gate control output
  9. VREF: Reference voltage output
  10. TS: Temperature sense input
  11. SRN: Serial number input
  12. NC: No connection
  13. NC: No connection
  14. NC: No connection
  15. NC: No connection
  16. VSS: Ground

Functional Features

  • Overcharge protection prevents the battery from exceeding safe voltage levels.
  • Overdischarge protection safeguards the battery by preventing excessive discharge.
  • Short circuit protection ensures the battery is not damaged due to short circuits.
  • Accurate voltage and current monitoring enable precise battery management.
  • Temperature sensing feature helps prevent thermal damage to the battery.
  • Serial number input allows for unique identification of batteries.

Advantages and Disadvantages

Advantages

  • Comprehensive battery protection features.
  • Accurate monitoring capabilities.
  • Low power consumption.
  • Wide operating temperature range.
  • Compact size.

Disadvantages

  • Limited pin configuration options.
  • Requires an external microcontroller for full functionality.

Working Principles

The BQ29411PWR operates based on a combination of voltage and current monitoring techniques. It continuously measures the battery's voltage, current, and temperature to ensure optimal performance and protection. When any parameter exceeds the predefined thresholds, the IC triggers appropriate actions to safeguard the battery.

Detailed Application Field Plans

The BQ29411PWR finds applications in various electronic devices that rely on rechargeable batteries, including: - Smartphones and tablets - Laptops and notebooks - Portable gaming consoles - Power banks - Electric vehicles

Detailed and Complete Alternative Models

  1. BQ29412PWR
  2. BQ29413PWR
  3. BQ29414PWR
  4. BQ29415PWR
  5. BQ29416PWR

These alternative models offer similar battery protection and monitoring functionalities, with slight variations in specifications and pin configurations.

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قم بإدراج 10 أسئلة وإجابات شائعة تتعلق بتطبيق BQ29411PWR في الحلول التقنية

Sure! Here are 10 common questions and answers related to the application of BQ29411PWR in technical solutions:

  1. Question: What is the BQ29411PWR?
    Answer: The BQ29411PWR is a voltage supervisor and protector IC designed for use in battery management systems.

  2. Question: What is the operating voltage range of the BQ29411PWR?
    Answer: The BQ29411PWR operates within a voltage range of 2.5V to 16V.

  3. Question: Can the BQ29411PWR be used with different types of batteries?
    Answer: Yes, the BQ29411PWR can be used with various types of batteries, including lithium-ion, lithium-polymer, and lithium iron phosphate (LiFePO4).

  4. Question: What is the purpose of the BQ29411PWR in battery management systems?
    Answer: The BQ29411PWR serves as a voltage supervisor and protector, monitoring the battery voltage and protecting it from overcharging, over-discharging, and overcurrent conditions.

  5. Question: How does the BQ29411PWR protect against overcharging?
    Answer: The BQ29411PWR has built-in overvoltage protection that triggers when the battery voltage exceeds a certain threshold, preventing further charging.

  6. Question: Can the BQ29411PWR protect against over-discharging?
    Answer: Yes, the BQ29411PWR includes undervoltage protection, which activates when the battery voltage drops below a specified level, preventing excessive discharge.

  7. Question: Does the BQ29411PWR have short-circuit protection?
    Answer: Yes, the BQ29411PWR features short-circuit protection, which helps prevent damage to the battery and other components in case of a short circuit.

  8. Question: Can the BQ29411PWR be used in multi-cell battery packs?
    Answer: Yes, the BQ29411PWR can be used in multi-cell battery packs by connecting it to each cell in the pack for individual monitoring and protection.

  9. Question: Does the BQ29411PWR have an adjustable overvoltage/undervoltage threshold?
    Answer: No, the BQ29411PWR has fixed overvoltage and undervoltage thresholds that cannot be adjusted.

  10. Question: What is the package type of the BQ29411PWR?
    Answer: The BQ29411PWR comes in a small 8-pin TSSOP (Thin Shrink Small Outline Package) package.