BQ24314ADSGR - English Editing Encyclopedia Entry

Product Overview

Category

BQ24314ADSGR belongs to the category of integrated circuits (ICs) specifically designed for power management applications.

Use

This IC is primarily used for battery charging and protection in portable electronic devices such as smartphones, tablets, and wearable devices.

Characteristics

• The BQ24314ADSGR offers a compact and efficient solution for managing battery charging.
• It provides various protection features to ensure safe and reliable charging.
• The IC supports fast charging technologies, enabling quick and efficient charging of batteries.
• It incorporates advanced power management techniques to optimize battery performance.

Package

The BQ24314ADSGR is available in a small form factor package, typically a 10-pin VSON (Very Small Outline No-Lead) package. This package ensures easy integration into space-constrained designs.

Essence

The essence of the BQ24314ADSGR lies in its ability to efficiently manage battery charging while providing essential protection features.

Packaging/Quantity

The IC is typically supplied in tape and reel packaging, with a quantity of 3000 units per reel.

Specifications

• Input Voltage Range: 3.5V to 6.45V
• Charging Current Range: Up to 2A
• Battery Voltage Range: 3.5V to 4.65V
• Operating Temperature Range: -40°C to +85°C
• Standby Current: Less than 1µA

Pin Configuration

The BQ24314ADSGR features the following pin configuration:

1. VIN (Input Voltage)
2. GND (Ground)
3. BAT (Battery Connection)
4. TS (Thermal Shutdown)
5. STAT (Status Output)
6. PG (Power Good Output)
7. ISET (Charging Current Setting)
8. ILIM (Input Current Limit)
9. VBUS (USB Input Voltage)
10. EN (Enable)

Functional Features

• Overvoltage Protection: The IC monitors the battery voltage and prevents it from exceeding a safe threshold.
• Overcurrent Protection: It safeguards the battery and charging circuitry by limiting the charging current to a safe level.
• Thermal Shutdown: In case of excessive temperature, the IC shuts down to prevent damage to itself and the connected devices.
• Charging Status Indication: The STAT pin provides information about the charging status, allowing the device to display appropriate indicators.
• Power Good Output: The PG pin indicates when the battery is fully charged and ready for use.

Advantages and Disadvantages

Advantages

• Compact size and easy integration into space-constrained designs.
• Efficient charging with support for fast charging technologies.
• Comprehensive protection features ensure safe charging.
• Optimized power management techniques enhance battery performance.

Disadvantages

• Limited charging current range may not be suitable for high-power devices.
• Temperature limitations restrict usage in extreme environments.

Working Principles

The BQ24314ADSGR 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. The IC dynamically adjusts the charging parameters to optimize the charging process and protect the battery from overvoltage and overcurrent conditions.

Detailed Application Field Plans

The BQ24314ADSGR finds extensive application in various portable electronic devices, including: - Smartphones - Tablets - Wearable devices - Portable gaming consoles - Bluetooth headsets

Detailed and Complete Alternative Models

1. BQ24316DSGR: Similar to BQ24314ADSGR but with additional features such as reverse current blocking and load sharing capabilities.
2. BQ24075RGTR: A compact IC with integrated power path management, ideal for single-cell Li-Ion/Li-Pol battery charging applications.
3. BQ25895RGER: A high-efficiency, multi-chemistry battery charger with advanced thermal regulation and USB On-The-Go (OTG) support.

In conclusion, the BQ24314ADSGR is a versatile integrated circuit designed for efficient battery charging and protection in portable electronic devices. Its compact size, comprehensive protection features, and support for fast charging technologies make it an excellent choice for various applications.