BQ24008PWPG4 - English Editing Encyclopedia Entry

Product Overview

Category

BQ24008PWPG4 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 portable electronic devices such as smartphones, tablets, and wearable devices.

Characteristics

• Input voltage range: 4.35V to 6.45V
• Output voltage range: 4.2V to 4.5V
• Charging current: Up to 1A
• Standby current: Less than 100µA
• Thermal regulation and protection
• Charge status indication
• Small form factor

Package

BQ24008PWPG4 is available in a small-footprint, lead-free HTSSOP-20 package.

Essence

The essence of BQ24008PWPG4 lies in its ability to efficiently charge lithium-ion or lithium-polymer batteries while providing necessary protection features.

Packaging/Quantity

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

Specifications

• Input Voltage Range: 4.35V to 6.45V
• Output Voltage Range: 4.2V to 4.5V
• Charging Current: Up to 1A
• Standby Current: <100µA
• Operating Temperature Range: -40°C to +85°C
• Package Type: HTSSOP-20

Detailed Pin Configuration

1. EN (Enable)
2. STAT (Status)
3. PG (Power Good)
4. VSS (Ground)
5. VBAT (Battery Voltage)
6. TS (Thermal Sense)
7. ISET (Charging Current Set)
8. PROG (Charge Termination Programming)
9. VSS (Ground)
10. VSS (Ground)
11. VSS (Ground)
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. VIN (Input Voltage)

Functional Features

1. Thermal Regulation and Protection: The BQ24008PWPG4 incorporates thermal regulation to prevent overheating during charging, ensuring safe operation.
2. Charge Status Indication: The STAT pin provides information about the charging status, allowing users to monitor the progress.
3. Flexible Charging Current: The ISET pin allows users to set the desired charging current, providing flexibility based on battery requirements.
4. Power Good Output: The PG pin indicates when the output voltage is within the valid range, enabling efficient power management.

Advantages and Disadvantages

Advantages

• Efficient charging of lithium-ion or lithium-polymer batteries
• Small form factor for space-constrained applications
• Thermal regulation prevents overheating
• Charge status indication for monitoring
• Flexible charging current options

Disadvantages

• Limited to single-cell battery charging only
• Not suitable for high-power charging applications

Working Principles

The BQ24008PWPG4 operates by regulating the input voltage and controlling the charging current to ensure safe and efficient charging of lithium-ion or lithium-polymer batteries. It incorporates thermal regulation to prevent overheating and offers charge termination programming options for optimal battery performance.

Detailed Application Field Plans

The BQ24008PWPG4 is widely used in various portable electronic devices, including but not limited to: - Smartphones - Tablets - Wearable devices - Portable media players - Bluetooth headsets

Detailed and Complete Alternative Models

1. BQ24008PWP
2. BQ24008PWPR
3. BQ24008PWPT
4. BQ24008PWPRG4
5. BQ24008PWPTG4

These alternative models offer similar functionality and characteristics, providing users with options based on their specific requirements.

In conclusion, the BQ24008PWPG4 is a highly efficient integrated circuit designed for charging single-cell lithium-ion or lithium-polymer batteries in portable electronic devices. With its compact size, thermal regulation, and flexible charging current options, it offers significant advantages for various applications. However, it is important to note its limitations in terms of battery type and power requirements.