Maaaring representasyon ang larawan.
Tingnan ang mga detalye para sa mga detalye ng produkto.
BQ29412DCTT

BQ29412DCTT - English Editing Encyclopedia Entry

Product Overview

Category

The BQ29412DCTT belongs to the category of integrated circuits (ICs) specifically designed for battery protection.

Use

This IC is primarily used for protecting lithium-ion and lithium-polymer batteries from overcharging, over-discharging, and short-circuiting.

Characteristics

  • Voltage range: 2.5V to 4.8V
  • Low quiescent current: 10µA (typical)
  • High accuracy voltage detection: ±25mV (typical)
  • Overcharge detection voltage: 4.1V to 4.35V (programmable)
  • Overdischarge detection voltage: 2.0V to 3.0V (programmable)
  • Short-circuit detection delay time: 5ms (typical)

Package

The BQ29412DCTT is available in a small SOT-23 package, which is suitable for space-constrained applications.

Essence

The essence of the BQ29412DCTT lies in its ability to safeguard lithium-ion and lithium-polymer batteries by monitoring their voltage levels and preventing potential hazards such as overcharging, over-discharging, and short-circuiting.

Packaging/Quantity

This IC is typically sold in reels containing 3000 units per reel.

Specifications

  • Supply voltage range: 2.5V to 4.8V
  • Operating temperature range: -40°C to +85°C
  • Quiescent current: 10µA (typical)
  • Overcharge detection voltage range: 4.1V to 4.35V (programmable)
  • Overdischarge detection voltage range: 2.0V to 3.0V (programmable)
  • Short-circuit detection delay time: 5ms (typical)

Detailed Pin Configuration

The BQ29412DCTT has the following pin configuration:

  1. VDD - Supply voltage input
  2. GND - Ground reference
  3. SDA - Serial data input/output for communication
  4. SCL - Serial clock input for communication
  5. OUT - Open-drain output indicating battery status
  6. RST - Reset input for device initialization

Functional Features

  • Overcharge protection: The IC monitors the battery voltage and disconnects the charging source when it exceeds the programmed threshold.
  • Overdischarge protection: It prevents the battery from discharging below the set threshold by disconnecting the load.
  • Short-circuit protection: The IC detects short-circuits and quickly disconnects the battery to prevent damage.
  • Reset function: A reset input allows for device initialization and restart after a fault condition.

Advantages and Disadvantages

Advantages

  • High accuracy voltage detection ensures precise battery protection.
  • Low quiescent current minimizes power consumption.
  • Small package size enables use in space-constrained applications.
  • Programmable thresholds provide flexibility for different battery chemistries.

Disadvantages

  • Limited to lithium-ion and lithium-polymer battery protection.
  • Requires external components for complete battery protection circuitry.

Working Principles

The BQ29412DCTT operates by continuously monitoring the battery voltage using an internal voltage reference. When the voltage exceeds the programmed overcharge threshold, the IC disconnects the charging source. Similarly, if the voltage drops below the programmed overdischarge threshold, the IC disconnects the load. In case of a short-circuit, the IC rapidly disconnects the battery to prevent damage. The reset input allows for device initialization and restart after a fault condition.

Detailed Application Field Plans

The BQ29412DCTT is widely used in various portable electronic devices, including: - Smartphones - Tablets - Laptops - Portable power banks - Wearable devices

Detailed and Complete Alternative Models

  1. BQ29412DCTR: Similar to BQ29412DCTT but available in a tape and reel package.
  2. BQ29412DCTRG4: RoHS-compliant version of BQ29412DCTT with the same specifications.

These alternative models provide similar functionality and can be used as drop-in replacements for the BQ29412DCTT.

Word count: 557 words

Maglista ng 10 karaniwang tanong at sagot na nauugnay sa aplikasyon ng BQ29412DCTT sa mga teknikal na solusyon

Sure! Here are 10 common questions and answers related to the application of BQ29412DCTT in technical solutions:

  1. Question: What is the BQ29412DCTT?
    Answer: The BQ29412DCTT is a voltage supervisor and protector IC designed for use in battery management systems.

  2. Question: What is the purpose of the BQ29412DCTT in technical solutions?
    Answer: The BQ29412DCTT is used to monitor and protect battery cells from overvoltage, undervoltage, and overcurrent conditions.

  3. Question: How does the BQ29412DCTT detect overvoltage and undervoltage conditions?
    Answer: The BQ29412DCTT compares the battery voltage with predefined thresholds and triggers an alert or protection mechanism when these thresholds are exceeded.

  4. Question: Can the BQ29412DCTT handle multiple battery cells?
    Answer: Yes, the BQ29412DCTT can be used in multi-cell battery packs by connecting it to each individual cell.

  5. Question: What is the maximum number of battery cells that the BQ29412DCTT can handle?
    Answer: The BQ29412DCTT can handle up to 4 series-connected battery cells.

  6. Question: Does the BQ29412DCTT provide any temperature monitoring features?
    Answer: Yes, the BQ29412DCTT includes an internal temperature sensor to monitor the battery pack's temperature.

  7. Question: Can the BQ29412DCTT communicate with a microcontroller or other devices?
    Answer: Yes, the BQ29412DCTT has an I2C interface that allows communication with external devices for data logging or control purposes.

  8. Question: What is the operating voltage range of the BQ29412DCTT?
    Answer: The BQ29412DCTT operates from 2.5V to 16V, making it suitable for a wide range of battery-powered applications.

  9. Question: Does the BQ29412DCTT have built-in protection features?
    Answer: Yes, the BQ29412DCTT provides overvoltage, undervoltage, and overcurrent protection for the battery cells.

  10. Question: Can the BQ29412DCTT be used in automotive applications?
    Answer: Yes, the BQ29412DCTT is automotive-grade and can be used in various automotive battery management systems.

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