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BQ24187YFFT
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BQ24187YFFT - English Editing Encyclopedia Entry

Product Overview

Category

The BQ24187YFFT belongs to the category of integrated circuits (ICs) specifically designed for battery charging applications.

Use

This IC is primarily used for managing and controlling the charging process of rechargeable batteries in various electronic devices.

Characteristics

  • The BQ24187YFFT offers high efficiency charging, ensuring optimal use of power.
  • It supports multiple charging modes, including fast charging and trickle charging.
  • This IC incorporates advanced safety features to protect the battery and the device from overcharging, overvoltage, and overcurrent conditions.
  • It is designed to be compact and lightweight, making it suitable for portable electronic devices.
  • The BQ24187YFFT is compatible with a wide range of battery chemistries, such as lithium-ion (Li-ion) and lithium-polymer (LiPo).

Package and Quantity

The BQ24187YFFT is available in a small form factor package, typically a 20-pin QFN (Quad Flat No-Lead) package. It is commonly supplied in tape and reel packaging, with a quantity of 250 units per reel.

Specifications

  • Input Voltage Range: 4.5V to 17V
  • Charging Voltage Range: 3.6V to 14.4V
  • Maximum Charging Current: 4A
  • Operating Temperature Range: -40°C to 85°C
  • Standby Current: <10µA

Pin Configuration

The BQ24187YFFT has a total of 20 pins, each serving a specific function. The pin configuration is as follows:

  1. VIN: Input voltage pin
  2. VBUS: USB input voltage pin
  3. PGND: Power ground pin
  4. SYS: System output voltage pin
  5. TS: Thermistor input pin
  6. ISET: Charging current setting pin
  7. STAT: Status output pin
  8. AC/DPDM: USB adapter detection pin
  9. VREF: Reference voltage output pin
  10. TS/NTC: Thermistor or NTC input pin
  11. BAT: Battery voltage sense pin
  12. TS2: Second thermistor input pin
  13. SRN: Serial interface receive pin
  14. SCLK: Serial interface clock pin
  15. SDATA: Serial interface data pin
  16. CE: Charge enable pin
  17. INT: Interrupt output pin
  18. ILIM: Input current limit setting pin
  19. SRP: Serial interface transmit pin
  20. PG: Power good output pin

Functional Features

  • Fast Charging: The BQ24187YFFT supports high-speed charging, allowing devices to charge quickly.
  • Thermal Regulation: It incorporates a thermal regulation feature that adjusts the charging current based on the temperature of the device, ensuring safe and efficient charging.
  • Battery Protection: This IC provides comprehensive protection mechanisms against overcharging, overvoltage, and overcurrent, safeguarding both the battery and the device.
  • USB Adapter Detection: The BQ24187YFFT can detect the type of USB adapter connected, enabling optimized charging for different power sources.
  • System Output Voltage: It offers a regulated system output voltage, ensuring stable power supply to the device during charging.

Advantages and Disadvantages

Advantages

  • High charging efficiency
  • Multiple charging modes
  • Compact and lightweight design
  • Wide compatibility with battery chemistries
  • Advanced safety features

Disadvantages

  • Limited maximum charging current (4A)
  • Requires external components for complete charging circuit implementation

Working Principles

The BQ24187YFFT operates by regulating the charging current and voltage supplied to the battery. It continuously monitors the battery's voltage and temperature to ensure safe and efficient charging. The IC adjusts the charging parameters based on the battery's state of charge, adapting to different charging modes as required.

Detailed Application Field Plans

The BQ24187YFFT is widely used in various portable electronic devices, including smartphones, tablets, digital cameras, and portable gaming consoles. It is also employed in power banks and other battery-powered devices that require efficient and reliable charging capabilities.

Detailed Alternative Models

  • BQ24190YFFT
  • BQ24192YFFT
  • BQ24193YFFT
  • BQ24195YFFT
  • BQ24196YFFT

These alternative models offer similar functionality and characteristics to the BQ24187YFFT, providing options for different design requirements and specifications.

In conclusion, the BQ24187YFFT is a highly efficient integrated circuit designed for battery charging applications. With its advanced features and compact design, it offers reliable and optimized charging solutions for a wide range of portable electronic devices.

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قم بإدراج 10 أسئلة وإجابات شائعة تتعلق بتطبيق BQ24187YFFT في الحلول التقنية

Sure! Here are 10 common questions and answers related to the application of BQ24187YFFT in technical solutions:

  1. Q: What is the BQ24187YFFT? A: The BQ24187YFFT is a highly integrated single-cell Li-Ion battery charger with power path management for portable applications.

  2. Q: What is the input voltage range supported by the BQ24187YFFT? A: The BQ24187YFFT supports an input voltage range from 3.9V to 17V.

  3. Q: Can the BQ24187YFFT charge multiple battery chemistries? A: No, the BQ24187YFFT is specifically designed for charging single-cell Li-Ion batteries.

  4. Q: What is power path management? A: Power path management allows simultaneous charging of the battery and powering the system from a USB port or adapter.

  5. Q: Does the BQ24187YFFT support fast charging? A: Yes, the BQ24187YFFT supports various fast charging protocols such as USB BC1.2, Apple, and Qualcomm Quick Charge.

  6. Q: What is the maximum charging current supported by the BQ24187YFFT? A: The BQ24187YFFT can provide a maximum charging current of up to 3A.

  7. Q: Does the BQ24187YFFT have built-in thermal regulation? A: Yes, the BQ24187YFFT has a built-in thermal regulation feature that adjusts the charging current based on the temperature.

  8. Q: Can the BQ24187YFFT operate in a low-power mode? A: Yes, the BQ24187YFFT has a low-power mode that reduces the quiescent current to optimize efficiency.

  9. Q: Does the BQ24187YFFT have overvoltage and overcurrent protection? A: Yes, the BQ24187YFFT has built-in overvoltage and overcurrent protection to safeguard the battery and system.

  10. Q: What are some typical applications of the BQ24187YFFT? A: The BQ24187YFFT is commonly used in smartphones, tablets, portable media players, and other portable electronic devices.

Please note that these answers are general and may vary depending on the specific implementation and configuration of the BQ24187YFFT in a technical solution.