Texas Instruments
Kuva saattaa olla esitys.
Katso tuotteen tekniset tiedot.
BQ24298RTWT
Näytä Yksityiskohdat DataSheets

BQ24298RTWT - English Editing Encyclopedia Entry

Product Overview

Category

BQ24298RTWT 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

  • High efficiency charging: BQ24298RTWT offers efficient power management, ensuring optimal charging performance.
  • Fast charging capability: The IC supports fast charging protocols, enabling quick recharge times for compatible devices.
  • Advanced safety features: It incorporates multiple protection mechanisms to prevent overcharging, overvoltage, and overheating, ensuring safe and reliable charging.
  • Compact package: BQ24298RTWT is available in a small form factor package, making it suitable for space-constrained designs.
  • RoHS compliant: This product adheres to the Restriction of Hazardous Substances directive, ensuring environmental friendliness.

Package and Quantity

BQ24298RTWT is packaged in a small outline 24-pin WQFN package. It is typically sold in reels containing a specified quantity, usually ranging from 250 to 3000 units per reel.

Specifications

  • Input voltage range: 3.9V to 6.45V
  • Charging current range: Up to 3A
  • Programmable charge voltage: 4.2V to 4.44V
  • Operating temperature range: -40°C to +85°C
  • Standby current: < 10µA
  • Integrated thermal regulation and protection

Pin Configuration

The BQ24298RTWT IC has the following pin configuration:

  1. VBUS: Input voltage pin
  2. PGND: Power ground pin
  3. STAT: Status output pin
  4. TS: Thermistor input pin
  5. ISET: Charge current setting pin
  6. VBAT: Battery voltage sense pin
  7. TS/DPDM: Thermistor input or USB D+/D- detection pin
  8. SRN: System reset output pin
  9. BATFET: Battery FET control pin
  10. INT: Interrupt output pin
  11. CE: Charge enable input pin
  12. SDA: I2C data pin
  13. SCL: I2C clock pin
  14. TS1: Thermistor input pin
  15. TS2: Thermistor input pin
  16. TS3: Thermistor input pin
  17. TS4: Thermistor input pin
  18. TS5: Thermistor input pin
  19. TS6: Thermistor input pin
  20. TS7: Thermistor input pin
  21. TS8: Thermistor input pin
  22. TS9: Thermistor input pin
  23. TS10: Thermistor input pin
  24. GND: Ground pin

Functional Features

  • Dynamic Power Management: BQ24298RTWT optimizes power delivery based on the device's charging requirements, ensuring efficient energy utilization.
  • Input Current Limiting: It regulates the input current to prevent overloading of the power source, protecting both the charger and the battery.
  • Thermal Regulation: The IC monitors the temperature during charging and adjusts the charging current accordingly to prevent overheating.
  • Charge Termination: BQ24298RTWT automatically terminates the charging process when the battery reaches its full capacity, preventing overcharging and potential damage.

Advantages and Disadvantages

Advantages

  • High charging efficiency ensures faster recharge times.
  • Advanced safety features protect the battery and the device from potential damage.
  • Compact package allows for flexible integration in various designs.
  • Compliance with RoHS directive promotes environmental sustainability.

Disadvantages

  • Limited compatibility with certain battery chemistries other than lithium-ion.
  • Requires proper thermal management to prevent overheating during high-current charging.

Working Principles

BQ24298RTWT operates by regulating the charging current and voltage supplied to the connected lithium-ion battery. It utilizes a combination of power management techniques, including dynamic power management and thermal regulation, to ensure efficient and safe charging. The IC continuously monitors the battery's voltage and temperature, adjusting the charging parameters accordingly. Once the battery reaches its full capacity, the charging process is automatically terminated to prevent overcharging.

Detailed Application Field Plans

BQ24298RTWT finds applications in various electronic devices that utilize lithium-ion batteries, such as smartphones, tablets, portable media players, and wearable devices. Its compact size and advanced charging capabilities make it suitable for space-constrained designs where fast and efficient charging is required.

Alternative Models

For those seeking alternative options, the following models can be considered: - BQ24296RTWT - BQ24297RTWT - BQ24299RTWT

These models offer similar functionality and characteristics, providing flexibility in choosing the most suitable option for specific design requirements.

In conclusion

Luettele 10 yleistä kysymystä ja vastausta, jotka liittyvät BQ24298RTWT :n soveltamiseen teknisissä ratkaisuissa

Sure! Here are 10 common questions and answers related to the application of BQ24298RTWT in technical solutions:

  1. Q: What is the BQ24298RTWT? A: The BQ24298RTWT is a highly integrated single-cell Li-Ion battery charger and system power path management device.

  2. Q: What is the input voltage range supported by the BQ24298RTWT? A: The BQ24298RTWT supports an input voltage range from 3.9V to 14V.

  3. Q: Can the BQ24298RTWT charge multiple battery chemistries? A: No, the BQ24298RTWT is specifically designed for charging single-cell Li-Ion batteries.

  4. Q: What is the maximum charging current supported by the BQ24298RTWT? A: The BQ24298RTWT can support a maximum charging current of up to 2A.

  5. Q: Does the BQ24298RTWT have overvoltage protection? A: Yes, the BQ24298RTWT has built-in overvoltage protection to prevent damage to the battery during charging.

  6. Q: Can the BQ24298RTWT operate while charging the battery? A: Yes, the BQ24298RTWT supports simultaneous charging and system operation.

  7. Q: Does the BQ24298RTWT have thermal regulation features? A: Yes, the BQ24298RTWT includes thermal regulation to prevent overheating during charging.

  8. Q: Can the BQ24298RTWT be used in portable devices with USB Type-C connectors? A: Yes, the BQ24298RTWT is compatible with USB Type-C connectors and can be used in portable devices.

  9. Q: Does the BQ24298RTWT support battery temperature monitoring? A: Yes, the BQ24298RTWT has a built-in battery temperature monitoring feature for safe charging.

  10. Q: Can the BQ24298RTWT be used in automotive applications? A: Yes, the BQ24298RTWT is suitable for automotive applications and can operate within the specified temperature range.

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