BQ24308DSGT

Product Overview

Category

BQ24308DSGT belongs to the category of integrated circuits (ICs) specifically designed for power management applications.

Use

This IC is commonly used in battery charging and protection systems, providing efficient and reliable power management solutions.

Characteristics

• High efficiency: BQ24308DSGT offers high charging efficiency, ensuring optimal use of power.
• Protection features: It incorporates various protection mechanisms such as overvoltage protection, overcurrent protection, and thermal shutdown, safeguarding the battery and the charging system.
• Compact package: The IC comes in a small form factor package, making it suitable for space-constrained applications.
• Low power consumption: BQ24308DSGT consumes minimal power during operation, enhancing overall system efficiency.

Package and Quantity

The BQ24308DSGT is available in a surface-mount 10-pin VSON package. It is typically sold in reels containing a specified quantity, usually around 2500 units per reel.

Specifications

• Input voltage range: 3.5V to 26V
• Output voltage range: 3.5V to 26V
• Charging current: Up to 2A
• Operating temperature range: -40°C to +85°C
• Standby current: Less than 1µA

Pin Configuration

The BQ24308DSGT has the following pin configuration:

1. VIN: Input voltage
2. GND: Ground reference
3. BAT: Battery connection
4. TS: Thermal shutdown
5. PG: Power good indicator
6. STAT: Status output
7. ISET: Current limit setting
8. EN: Enable control
9. ILIM: Current limit programming
10. VBUS: USB input voltage

Functional Features

1. Overvoltage protection: Monitors the input voltage and protects against excessive voltage levels, preventing damage to the battery and charging system.
2. Overcurrent protection: Detects and limits the charging current to prevent overloading and potential damage to the battery.
3. Thermal shutdown: Activates when the IC's temperature exceeds a specified threshold, ensuring safe operation by preventing overheating.
4. Power good indicator: Provides an indication of the charging status, allowing for easy monitoring of the charging process.
5. Status output: Offers additional information about the charging process, such as fault conditions or charging completion.
6. Current limit programming: Allows customization of the charging current limit according to specific application requirements.

Advantages and Disadvantages

Advantages

• High charging efficiency ensures optimal power utilization.
• Comprehensive protection mechanisms safeguard the battery and charging system.
• Compact package enables usage in space-constrained applications.
• Low power consumption enhances overall system efficiency.

Disadvantages

• Limited charging current capacity (up to 2A).
• May require additional external components for certain applications.

Working Principles

The BQ24308DSGT operates based on a combination of voltage and current regulation techniques. It continuously monitors the input voltage, output voltage, and charging current to ensure safe and efficient charging. The IC employs various control mechanisms to regulate the charging process, protecting the battery from overvoltage, overcurrent, and thermal issues.

Application Field Plans

The BQ24308DSGT is widely used in portable electronic devices, such as smartphones, tablets, and wearable devices. It finds applications in battery charging circuits, power banks, and other systems requiring efficient power management and protection.

Alternative Models

1. BQ24308EVM: Evaluation module for BQ24308DSGT, providing a platform for testing and prototyping.
2. BQ24075RGTR: Similar IC with enhanced charging current capacity (up to 3A).
3. BQ24092DGQR: Alternative IC with integrated USB On-The-Go (OTG) functionality.

These alternative models offer similar functionalities and can be considered based on specific application requirements.

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