BQ24304DSGT - English Editing Encyclopedia Entry

Product Overview

Category

BQ24304DSGT 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 circuits, providing efficient and reliable power management solutions.

Characteristics

• High efficiency: BQ24304DSGT offers high charging efficiency, minimizing energy loss during the charging process.
• Overvoltage protection: It includes built-in overvoltage protection, safeguarding the connected devices from potential damage.
• Temperature monitoring: The IC features temperature monitoring capabilities, ensuring safe operation even under extreme conditions.
• Fast charging support: BQ24304DSGT supports fast charging protocols, enabling quick and efficient charging of compatible devices.

Package and Quantity

BQ24304DSGT is available in a small form factor package, such as a 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 BQ24304DSGT IC has the following pin configuration:

1. VIN: Input voltage pin
2. GND: Ground pin
3. BAT: Battery connection pin
4. TS: Temperature sense pin
5. STAT: Status output pin
6. PG: Power good output pin
7. ILIM: Current limit setting pin
8. EN: Enable pin
9. D+/D-: USB data pins
10. VBUS: USB power input pin

Functional Features

1. Overvoltage protection: BQ24304DSGT monitors the input voltage and disconnects the battery from the charging circuit if an overvoltage condition is detected.
2. Reverse current blocking: It prevents the battery from discharging into the charging source when the input power is removed.
3. Thermal regulation: The IC includes a temperature sensor to monitor the device's temperature, ensuring safe operation by adjusting the charging current accordingly.
4. Charging status indication: BQ24304DSGT provides status outputs (STAT and PG pins) to indicate the charging status, allowing for easy integration with external systems.

Advantages and Disadvantages

Advantages

• High charging efficiency reduces energy loss during the charging process.
• Overvoltage protection safeguards connected devices from potential damage.
• Fast charging support enables quick and efficient charging of compatible devices.
• Small form factor package allows for space-efficient designs.

Disadvantages

• Limited maximum charging current compared to some other ICs in the market.
• May require additional external components for certain applications.

Working Principles

BQ24304DSGT operates based on a combination of voltage and current sensing techniques. It continuously monitors the input voltage, battery voltage, and charging current to ensure safe and efficient charging. By utilizing its built-in protection features, it regulates the charging process, preventing overvoltage, reverse current flow, and excessive temperature rise.

Detailed Application Field Plans

BQ24304DSGT finds applications in various fields, including: 1. Mobile devices: It is commonly used in smartphones, tablets, and portable electronic devices to manage battery charging and protection. 2. Power banks: BQ24304DSGT ensures efficient charging and protection of power bank batteries, enhancing their reliability and safety. 3. Wearable devices: It provides reliable power management solutions for smartwatches, fitness trackers, and other wearable gadgets. 4. Industrial equipment: BQ24304DSGT is utilized in industrial applications where battery charging and protection are critical, such as in remote monitoring systems and wireless sensors.

Detailed Alternative Models

1. BQ24075RGTR: This IC offers similar functionality to BQ24304DSGT and is available in a 16-pin QFN package.
2. LTC4054LES8-4.2: An alternative IC with comparable features, packaged in an 8-pin SOIC package.
3. MCP73831T-2ATI/OT: This IC provides similar charging and protection capabilities and comes in a 6-pin SOT-23 package.

These alternative models can be considered based on specific application requirements and design constraints.

In conclusion, BQ24304DSGT is a versatile integrated circuit designed for efficient power management in battery charging applications. With its advanced features and compact package, it offers reliable charging and protection solutions for various electronic devices.

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