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BQ26221PW
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BQ26221PW

Product Overview

Category

BQ26221PW belongs to the category of integrated circuits (ICs).

Use

This product is primarily used for battery charging and protection in various electronic devices.

Characteristics

  • Integrated circuit designed for battery management
  • Provides charging and protection functions
  • Compact size and low power consumption
  • High efficiency and reliability

Package

BQ26221PW is available in a small outline package (SOP) with a specified pin configuration.

Essence

The essence of BQ26221PW lies in its ability to efficiently charge and protect batteries, ensuring their optimal performance and longevity.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

  • Input Voltage Range: 4.5V - 26V
  • Charging Current Range: 100mA - 2A
  • Operating Temperature Range: -40°C to +85°C
  • Battery Chemistry Compatibility: Li-Ion, Li-Polymer

Detailed Pin Configuration

  1. VCC: Power supply input
  2. GND: Ground reference
  3. BAT: Battery connection
  4. TS: Temperature sense input
  5. PROG: Charging current programming pin
  6. STAT: Status output pin
  7. EN: Enable control pin
  8. PG: Charge complete indication pin

Functional Features

  • Overvoltage protection
  • Overcurrent protection
  • Short-circuit protection
  • Thermal regulation
  • Charge termination control
  • Battery temperature monitoring
  • LED status indication

Advantages and Disadvantages

Advantages

  • Efficient charging and protection of batteries
  • Compact size allows for integration into various devices
  • Wide input voltage range for compatibility
  • Comprehensive protection features ensure battery safety

Disadvantages

  • Limited charging current range
  • Temperature sensing accuracy may vary

Working Principles

BQ26221PW operates by regulating the charging current and monitoring the battery voltage and temperature. It employs various protection mechanisms to prevent overcharging, overcurrent, and short-circuit conditions. The integrated thermal regulation ensures safe operation within specified temperature limits.

Detailed Application Field Plans

BQ26221PW finds applications in a wide range of electronic devices, including: 1. Smartphones and tablets 2. Portable gaming consoles 3. Wearable devices 4. Power banks 5. Digital cameras

Detailed and Complete Alternative Models

  1. BQ24075RGTR: Similar functionality with additional USB OTG support.
  2. BQ25895RGET: Higher charging current capability with advanced thermal management features.
  3. BQ24650RVAT: Integrated MPPT (Maximum Power Point Tracking) for solar-powered applications.

These alternative models offer similar functionalities to BQ26221PW but may have additional features or enhanced specifications.

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Liệt kê 10 câu hỏi và câu trả lời thường gặp liên quan đến ứng dụng BQ26221PW trong giải pháp kỹ thuật

Sure! Here are 10 common questions and answers related to the application of BQ26221PW in technical solutions:

  1. Q: What is BQ26221PW? A: BQ26221PW is a battery charger IC designed for single-cell Li-Ion or Li-Polymer batteries.

  2. Q: What is the input voltage range supported by BQ26221PW? A: The input voltage range supported by BQ26221PW is typically between 4.35V and 6.5V.

  3. Q: Can BQ26221PW charge multiple batteries simultaneously? A: No, BQ26221PW is designed to charge a single-cell battery at a time.

  4. Q: What is the maximum charging current supported by BQ26221PW? A: The maximum charging current supported by BQ26221PW is typically 2A.

  5. Q: Does BQ26221PW have overvoltage protection? A: Yes, BQ26221PW has built-in overvoltage protection to prevent damage to the battery during charging.

  6. Q: Is BQ26221PW compatible with both Li-Ion and Li-Polymer batteries? A: Yes, BQ26221PW is compatible with both Li-Ion and Li-Polymer batteries.

  7. Q: Does BQ26221PW have thermal regulation to prevent overheating? A: Yes, BQ26221PW has thermal regulation features to prevent overheating during charging.

  8. Q: Can BQ26221PW operate in a wide temperature range? A: Yes, BQ26221PW can operate within a temperature range of -40°C to +85°C.

  9. Q: Does BQ26221PW support trickle charging for low-capacity batteries? A: Yes, BQ26221PW supports trickle charging to safely charge low-capacity batteries.

  10. Q: Is BQ26221PW suitable for portable devices like smartphones or tablets? A: Yes, BQ26221PW is commonly used in portable devices like smartphones and tablets for battery charging applications.

Please note that the answers provided here are general and may vary depending on the specific implementation and datasheet of BQ26221PW.