BQ24031IRHLRQ1 - English Editing Encyclopedia Entry

Product Overview

Category

BQ24031IRHLRQ1 belongs to the category of integrated circuits (ICs) specifically designed for battery charging applications.

Use

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

Characteristics

• Input voltage range: 4.35V to 6.45V
• Output voltage range: 3.5V to 4.44V
• Charging current up to 1.5A
• Integrated power FET
• Thermal regulation and protection
• Charge status indication
• Small form factor package

Package and Quantity

The BQ24031IRHLRQ1 is available in a compact 20-pin VQFN package. It is typically sold in reels with a quantity of 2500 units per reel.

Specifications

• Input Voltage Range: 4.35V to 6.45V
• Output Voltage Range: 3.5V to 4.44V
• Charging Current: Up to 1.5A
• Operating Temperature Range: -40°C to +85°C
• Package Type: 20-pin VQFN

Pin Configuration

The BQ24031IRHLRQ1 features the following pin configuration:

1. EN (Enable)
2. STAT (Status)
3. PG (Power Good)
4. TS (Thermal Sense)
5. ISET (Current Set)
6. VSS (Ground)
7. VSS (Ground)
8. VSS (Ground)
9. VSS (Ground)
10. VBAT (Battery Voltage)
11. VBUS (Input Voltage)
12. VSS (Ground)
13. VSS (Ground)
14. VSS (Ground)
15. VSS (Ground)
16. VSS (Ground)
17. VSS (Ground)
18. VSS (Ground)
19. VSS (Ground)
20. VDD (Supply Voltage)

Functional Features

• Integrated power FET for efficient charging
• Thermal regulation and protection to prevent overheating
• Charge status indication through the STAT pin
• Enable pin for easy control of charging process
• Current set pin for adjusting charging current
• Power good pin to indicate successful charging
• Reverse blocking diode for battery protection

Advantages and Disadvantages

Advantages

• High charging current capability
• Compact package size
• Efficient charging with integrated power FET
• Temperature regulation for safe operation
• Clear charge status indication

Disadvantages

• Limited input voltage range
• Not suitable for multi-cell battery charging

Working Principles

The BQ24031IRHLRQ1 operates by regulating the charging current and voltage to ensure safe and efficient charging of lithium-ion or lithium-polymer batteries. It utilizes an integrated power FET to control the charging process and provides thermal regulation to prevent overheating. The charge status is indicated through the STAT pin, allowing the user to monitor the charging progress.

Application Field Plans

The BQ24031IRHLRQ1 is widely used in various portable electronic devices that require single-cell lithium-ion or lithium-polymer battery charging. Some common application fields include:

1. Smartphones
2. Tablets
3. Wearable devices (smartwatches, fitness trackers)
4. Portable audio players
5. Bluetooth headsets
6. Portable gaming devices

Alternative Models

For users seeking alternative options, the following models can be considered:

1. BQ24032IRHLRQ1 - Similar specifications and features, but with a different package type (16-pin VQFN).
2. BQ24033IRHLRQ1 - Higher charging current capability (up to 2A) and additional features such as battery temperature monitoring.
3. BQ24035IRHLRQ1 - Lower charging current capability (up to 500mA) but with a smaller package size (10-pin VQFN).

These alternative models provide flexibility in choosing the most suitable solution based on specific requirements.

In conclusion, the BQ24031IRHLRQ1 is a highly capable integrated circuit designed for single-cell lithium-ion or lithium-polymer battery charging applications. Its compact size, efficient charging capabilities, and thermal regulation make it an ideal choice for various portable electronic devices.