Texas Instruments
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BQ24297RGET
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BQ24297RGET

Product Overview

Category

BQ24297RGET belongs to the category of integrated circuits (ICs) specifically designed for battery charging applications.

Use

This product is primarily used for charging lithium-ion batteries in various electronic devices such as smartphones, tablets, and portable electronics.

Characteristics

  • Integrated circuit for battery charging
  • Supports fast charging protocols
  • High efficiency power management
  • Compact package size
  • Wide input voltage range
  • Overvoltage and overcurrent protection
  • Thermal regulation for safe charging

Package and Quantity

The BQ24297RGET is available in a small 24-pin QFN (Quad Flat No-Lead) package. It is typically sold in reels containing a specified quantity of units.

Specifications

  • Input Voltage Range: 3.9V to 17V
  • Charging Voltage Range: 3.5V to 4.44V
  • Charging Current Range: Up to 3A
  • Operating Temperature Range: -40°C to +85°C
  • Efficiency: Up to 95%
  • Protection Features: Overvoltage, Overcurrent, and Thermal Regulation

Pin Configuration

The BQ24297RGET has a total of 24 pins, each serving a specific function. The detailed pin configuration is as follows:

  1. VBUS: Input voltage from the power source
  2. PGND: Power ground
  3. STAT: Status output indicating charging status
  4. TS: Thermistor input for temperature monitoring
  5. ISET: Charging current setting pin
  6. BAT: Battery positive terminal
  7. SYS: System power output
  8. INT: Interrupt output for charging events
  9. CE: Charge enable control input
  10. SDA: I2C data line
  11. SCL: I2C clock line
  12. TS/NTC: Thermistor input or NTC temperature sensing
  13. VSS: Ground
  14. VDD: Power supply for internal circuitry
  15. ILIM: Input current limit setting pin
  16. EN2: Enable control input 2
  17. EN1: Enable control input 1
  18. IINDPM: Input current detection pin
  19. AC/DC: AC/DC adapter detection input
  20. D+/D-: USB data lines
  21. VBUS_STAT: VBUS status output
  22. VBUS_GD: VBUS good output
  23. VBUS_DISCHG: VBUS discharge control output
  24. VBUS_CHG: VBUS charge control output

Functional Features

The BQ24297RGET offers several functional features that enhance its performance and usability: - Support for various fast charging protocols such as USB BC1.2, Apple, and Qualcomm Quick Charge - Dynamic power management to optimize charging efficiency - Battery temperature monitoring for safe charging - Automatic detection of the input source (AC/DC adapter or USB) - Integrated protection mechanisms against overvoltage, overcurrent, and thermal issues

Advantages and Disadvantages

Advantages: - High charging efficiency - Wide input voltage range allows compatibility with different power sources - Compact package size enables space-saving designs - Comprehensive protection features ensure safe charging

Disadvantages: - Limited availability of alternative models - Relatively high cost compared to standard charging ICs

Working Principles

The BQ24297RGET operates based on a switching regulator topology combined with advanced charging algorithms. It regulates the charging voltage and current to ensure optimal charging efficiency while protecting the battery from potential damage.

Application Field Plans

The BQ24297RGET is widely used in various portable electronic devices, including smartphones, tablets, smartwatches, and other battery-powered gadgets. Its fast charging capabilities and comprehensive protection features make it suitable for a broad range of applications.

Alternative Models

While the BQ24297RGET is a highly capable charging IC, there are alternative models available in the market that offer similar functionality. Some notable alternatives include: - BQ25895RGET - LTC4000-1 - MAX8903CETI+

These alternative models can be considered based on specific application requirements and availability.

In conclusion, the BQ24297RGET is an integrated circuit designed for efficient and safe charging of lithium-ion batteries in various electronic devices. With its compact size, wide input voltage range, and comprehensive protection features, it is a popular choice among manufacturers seeking reliable battery charging solutions.

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Перелічіть 10 типових запитань і відповідей, пов’язаних із застосуванням BQ24297RGET у технічних рішеннях

Sure! Here are 10 common questions and answers related to the application of BQ24297RGET in technical solutions:

  1. Q: What is the BQ24297RGET? A: The BQ24297RGET is a highly integrated single-cell Li-Ion battery charger with power path management for portable applications.

  2. 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 an adapter.

  3. Q: What is the input voltage range supported by the BQ24297RGET? A: The BQ24297RGET supports an input voltage range of 4.35V to 6.45V.

  4. Q: What is the maximum charge current supported by the BQ24297RGET? A: The BQ24297RGET supports a maximum charge current of 3A.

  5. Q: Can the BQ24297RGET charge multiple battery chemistries? A: No, the BQ24297RGET is specifically designed for single-cell Li-Ion batteries.

  6. Q: Does the BQ24297RGET have overvoltage protection? A: Yes, the BQ24297RGET has built-in overvoltage protection to prevent damage to the battery.

  7. Q: Is the BQ24297RGET compatible with USB Type-C? A: Yes, the BQ24297RGET is compatible with USB Type-C connectors.

  8. Q: Does the BQ24297RGET support thermal regulation? A: Yes, the BQ24297RGET has a built-in thermal regulation feature to prevent overheating.

  9. Q: Can the BQ24297RGET operate in a wide temperature range? A: Yes, the BQ24297RGET can operate in a temperature range of -40°C to 85°C.

  10. Q: Does the BQ24297RGET have an integrated battery voltage monitor? A: Yes, the BQ24297RGET has an integrated battery voltage monitor for accurate battery status monitoring.

Please note that these answers are general and may vary depending on the specific implementation and configuration of the BQ24297RGET in a technical solution.