BQ24093DGQT

Product Overview

Category

BQ24093DGQT 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: 3.5V to 4.44V
• Charging current up to 1.5A
• Integrated power FETs
• Thermal regulation and protection
• Programmable charge termination
• Battery temperature monitoring
• Small form factor package

Package

BQ24093DGQT is available in a small 10-pin VSSOP package, which ensures space efficiency and ease of integration into compact electronic devices.

Essence

The essence of BQ24093DGQT lies in its ability to efficiently and safely charge lithium-ion or lithium-polymer batteries, providing a reliable power source for portable electronic devices.

Packaging/Quantity

This product is typically supplied in tape and reel packaging, with a quantity of 3000 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: 10-pin VSSOP

Detailed Pin Configuration

1. EN (Enable): Enable pin for device operation.
2. STAT (Status): Provides charging status information.
3. PG (Power Good): Indicates the presence of an input power source.
4. TS (Thermal Sense): Connects to an external thermistor for temperature monitoring.
5. VSS (Ground): Ground reference for the device.
6. ISET (Current Set): Sets the charging current limit.
7. VBAT (Battery Voltage): Connects to the positive terminal of the battery.
8. VBUS (Input Voltage): Connects to the input power source.
9. SRN (Sense Resistor Negative): Connects to the negative terminal of the sense resistor.
10. SRP (Sense Resistor Positive): Connects to the positive terminal of the sense resistor.

Functional Features

1. Integrated Power FETs: The BQ24093DGQT incorporates power FETs, eliminating the need for external switches and reducing component count.
2. Programmable Charge Termination: Allows customization of charge termination conditions based on specific battery requirements.
3. Thermal Regulation and Protection: Monitors the device temperature and adjusts charging parameters accordingly to prevent overheating.
4. Battery Temperature Monitoring: Enables temperature-based charging control to ensure safe operation and extend battery lifespan.

Advantages and Disadvantages

Advantages

• High charging current capability enables faster charging times.
• Integrated power FETs simplify circuit design and reduce component count.
• Programmable charge termination allows customization for different battery chemistries.
• Thermal regulation and protection enhance safety and reliability.
• Small form factor package facilitates integration into space-constrained devices.

Disadvantages

• Limited compatibility with other battery chemistries.
• Higher cost compared to basic charging solutions.

Working Principles

The BQ24093DGQT operates by regulating the charging current and voltage supplied to the connected lithium-ion or lithium-polymer battery. It utilizes integrated power FETs to control the charging process efficiently. The device continuously monitors the battery temperature and adjusts charging parameters accordingly to prevent overheating and ensure safe operation.

Detailed Application Field Plans

BQ24093DGQT finds extensive application in various portable electronic devices, including: - Smartphones - Tablets - Wearable devices (smartwatches, fitness trackers) - Portable gaming consoles - Bluetooth headphones

Detailed and Complete Alternative Models

1. BQ24092DGQR: Similar to BQ24093DGQT but with a lower charging current capability of up to 1A.
2. BQ24094DGQR: Similar to BQ24093DGQT but with an extended input voltage range of 4.35V to 10V.

These alternative models provide flexibility in choosing the appropriate charging solution based on specific requirements.

In conclusion, BQ24093DGQT is a highly efficient and versatile integrated circuit designed for charging lithium-ion or lithium-polymer batteries in portable electronic devices. Its advanced features, compact package, and compatibility with various applications make it a preferred choice for battery charging solutions.