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BQ24072RGTTG4
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BQ24072RGTTG4 - English Editing Encyclopedia Entry

Product Overview

Category

BQ24072RGTTG4 belongs to the category of integrated circuits (ICs) specifically designed for battery charging applications.

Use

This product is primarily used for charging lithium-ion or lithium-polymer batteries in various electronic devices such as smartphones, tablets, portable media players, and other portable electronic devices.

Characteristics

  • Input voltage range: 4.35V to 6.45V
  • Output voltage range: 3.5V to 4.44V
  • Charging current: Up to 1.5A
  • Standby current: Less than 100µA
  • Thermal regulation and protection
  • Overvoltage protection
  • Short-circuit protection

Package

The BQ24072RGTTG4 is available in a small 16-pin QFN package, which ensures compactness and ease of integration into various electronic devices.

Essence

The essence of the BQ24072RGTTG4 lies in its ability to efficiently charge lithium-ion or lithium-polymer batteries while providing necessary safety features and thermal protection.

Packaging/Quantity

This product is typically sold in reels containing 250 units per reel.

Specifications

  • Input voltage: 4.35V to 6.45V
  • Output voltage: 3.5V to 4.44V
  • Charging current: Up to 1.5A
  • Standby current: Less than 100µA
  • Operating temperature range: -40°C to 85°C
  • Package type: 16-pin QFN

Detailed Pin Configuration

The BQ24072RGTTG4 has the following pin configuration:

  1. EN (Enable)
  2. STAT (Status)
  3. PG (Power Good)
  4. VBUS (Input Voltage)
  5. VSS (Ground)
  6. TS (Thermal Sense)
  7. ISET (Current Set)
  8. BAT (Battery)
  9. SRN (Sense Resistor Negative)
  10. SRP (Sense Resistor Positive)
  11. PROG (Program)
  12. VREG (Voltage Regulator Output)
  13. SYS (System Load)
  14. VCC (Supply Voltage)
  15. ILIM (Current Limit)
  16. TMR (Timer)

Functional Features

  • Thermal Regulation and Protection: The BQ24072RGTTG4 incorporates thermal regulation to prevent overheating during charging. It also provides protection against excessive temperature, ensuring safe operation.
  • Overvoltage Protection: This IC includes overvoltage protection, safeguarding the battery from potential damage caused by high voltage levels.
  • Short-Circuit Protection: The BQ24072RGTTG4 features short-circuit protection, preventing any damage to the battery or the charging circuit in case of a short circuit.

Advantages and Disadvantages

Advantages

  • Efficient charging of lithium-ion or lithium-polymer batteries
  • Compact package for easy integration into electronic devices
  • Thermal regulation and protection ensure safe charging
  • Overvoltage and short-circuit protection enhance battery safety

Disadvantages

  • Limited compatibility with other battery chemistries
  • Requires additional external components for complete charging system implementation

Working Principles

The BQ24072RGTTG4 operates based on a constant current/constant voltage (CC/CV) charging algorithm. Initially, it charges the battery with a constant current until the battery voltage reaches a predetermined threshold. Then, it switches to a constant voltage mode, maintaining the voltage at the specified level while reducing the charging current. This approach ensures efficient and safe charging of lithium-ion or lithium-polymer batteries.

Detailed Application Field Plans

The BQ24072RGTTG4 is widely used in various portable electronic devices, including but not limited to: - Smartphones - Tablets - Portable media players - Wearable devices - Bluetooth headsets - GPS devices

Detailed and Complete Alternative Models

  1. BQ24075RGTTG4: Similar to BQ24072RGTTG4 with additional USB On-The-Go (OTG) support.
  2. BQ24074RGTTG4: Similar to BQ24072RGTTG4 with higher charging current capability.
  3. BQ24073RGTTG4: Similar to BQ24072RGTTG4 with lower charging current capability.

These alternative models provide similar functionality and can be considered based on specific application requirements.

In conclusion, the BQ24072RGTTG4 is a highly efficient integrated circuit designed for charging lithium-ion or lithium-polymer batteries. Its compact package, thermal regulation, and protection features make it an ideal choice for various portable electronic devices. While it has some limitations regarding battery compatibility and external component requirements, its advantages

Senaraikan 10 soalan dan jawapan biasa yang berkaitan dengan aplikasi BQ24072RGTTG4 dalam penyelesaian teknikal

Sure! Here are 10 common questions and answers related to the application of BQ24072RGTTG4 in technical solutions:

  1. Q: What is the BQ24072RGTTG4? A: The BQ24072RGTTG4 is a highly integrated single-cell Li-Ion battery charger IC designed for portable applications.

  2. Q: What is the input voltage range supported by the BQ24072RGTTG4? A: The BQ24072RGTTG4 supports an input voltage range of 4.35V to 6.45V.

  3. Q: What is the maximum charge current provided by the BQ24072RGTTG4? A: The BQ24072RGTTG4 can provide a maximum charge current of up to 1.5A.

  4. Q: Does the BQ24072RGTTG4 support USB On-The-Go (OTG) functionality? A: No, the BQ24072RGTTG4 does not support USB OTG functionality.

  5. Q: Can the BQ24072RGTTG4 operate with a dead battery? A: Yes, the BQ24072RGTTG4 has a power path management feature that allows it to operate with a dead or deeply discharged battery.

  6. Q: What is the thermal regulation feature of the BQ24072RGTTG4? A: The BQ24072RGTTG4 has built-in thermal regulation to prevent excessive heat generation during charging, ensuring safe operation.

  7. Q: Is the BQ24072RGTTG4 compatible with various battery chemistries? A: No, the BQ24072RGTTG4 is specifically designed for single-cell Li-Ion batteries and is not compatible with other battery chemistries.

  8. Q: Does the BQ24072RGTTG4 have overvoltage protection? A: Yes, the BQ24072RGTTG4 has built-in overvoltage protection to prevent damage to the battery during charging.

  9. Q: Can the BQ24072RGTTG4 be used in fast charging applications? A: No, the BQ24072RGTTG4 does not support fast charging. It is designed for standard charging applications.

  10. Q: What is the package type of the BQ24072RGTTG4? A: The BQ24072RGTTG4 is available in a 16-pin QFN (RGT) package.

Please note that these answers are based on general information about the BQ24072RGTTG4 and may vary depending on specific application requirements.