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BQ29442DRBR
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BQ29442DRBR

Product Overview

Category

The BQ29442DRBR belongs to the category of battery protection ICs.

Use

It is used for protecting single-cell Li-ion or Li-polymer batteries from overcharge, over-discharge, and short-circuit conditions.

Characteristics

  • Overcharge protection
  • Over-discharge protection
  • Short-circuit protection
  • Low quiescent current
  • Wide input voltage range

Package

The BQ29442DRBR comes in a small outline package (SOP) with a specified pin configuration.

Essence

The essence of the BQ29442DRBR lies in its ability to safeguard lithium-ion and lithium-polymer batteries from potential damage due to charging, discharging, and electrical faults.

Packaging/Quantity

The BQ29442DRBR is typically available in reels containing a specific quantity per reel, as per the manufacturer's specifications.

Specifications

  • Input Voltage Range: 2.5V to 28V
  • Overcharge Threshold: Adjustable
  • Overdischarge Threshold: Adjustable
  • Quiescent Current: 18µA (typical)
  • Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The BQ29442DRBR has a detailed pin configuration that includes pins for input voltage, battery connection, control signals, and status indicators.

Functional Features

  • Overcharge protection with adjustable threshold
  • Over-discharge protection with adjustable threshold
  • Short-circuit protection
  • Status indication through output pins
  • Low quiescent current for minimal power consumption

Advantages and Disadvantages

Advantages

  • Customizable overcharge and over-discharge thresholds
  • Wide input voltage range
  • Low quiescent current for power efficiency

Disadvantages

  • Limited to single-cell battery protection
  • May require external components for full application integration

Working Principles

The BQ29442DRBR monitors the battery voltage and current flow to detect potential overcharge, over-discharge, and short-circuit conditions. Upon detecting these conditions, it activates internal protection mechanisms to safeguard the battery and connected circuitry.

Detailed Application Field Plans

The BQ29442DRBR is suitable for various applications including: - Portable electronic devices - Battery-powered tools - Electric vehicles - Energy storage systems

Detailed and Complete Alternative Models

Some alternative models to the BQ29442DRBR include: - BQ29700 - MAX17055 - LTC4071

Note: The above list is not exhaustive and may vary based on specific application requirements.

In conclusion, the BQ29442DRBR is a versatile battery protection IC designed to ensure the safety and reliability of single-cell Li-ion and Li-polymer batteries in a wide range of applications.

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기술 솔루션에 BQ29442DRBR 적용과 관련된 10가지 일반적인 질문과 답변을 나열하세요.

  1. What is the BQ29442DRBR?

    • The BQ29442DRBR is a voltage protection IC designed to protect lithium-ion/polymer batteries from overcharge, over-discharge, and short-circuit conditions.

  2. What is the input voltage range of BQ29442DRBR?

    • The input voltage range of BQ29442DRBR is typically 3V to 28V.

  3. What is the maximum charge current that BQ29442DRBR can handle?

    • The BQ29442DRBR can handle a maximum charge current of 10A.

  4. How does BQ29442DRBR protect against overcharge?

    • The BQ29442DRBR uses an internal precision voltage reference and a high-accuracy comparator to monitor the battery voltage and disconnect the load when the voltage exceeds a preset threshold.

  5. Can BQ29442DRBR be used in automotive applications?

    • Yes, the BQ29442DRBR is suitable for automotive applications due to its wide input voltage range and robust protection features.

  6. What is the quiescent current of BQ29442DRBR?

    • The quiescent current of BQ29442DRBR is typically 35µA, which helps minimize power consumption during standby mode.

  7. Does BQ29442DRBR support temperature monitoring?

    • Yes, the BQ29442DRBR includes a built-in temperature sensor for accurate temperature monitoring and protection.

  8. What is the operating temperature range of BQ29442DRBR?

    • The BQ29442DRBR has an operating temperature range of -40°C to 85°C, making it suitable for a wide range of environments.

  9. Can BQ29442DRBR be used in battery packs with multiple cells?

    • Yes, the BQ29442DRBR can be used in battery packs with multiple cells by connecting it to each cell in the pack to provide individual cell protection.

  10. Is BQ29442DRBR RoHS compliant?

    • Yes, the BQ29442DRBR is RoHS compliant, ensuring it meets environmental standards for hazardous substance restrictions.