BQ24300DSGT

Product Overview

Category

BQ24300DSGT belongs to the category of integrated circuits (ICs) used in 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 BQ24300DSGT offers a compact and efficient solution for managing battery charging.
• It provides overvoltage protection, overcurrent protection, and thermal shutdown features.
• The IC supports various charging modes, including constant voltage and constant current.
• It is designed to maximize charging efficiency while ensuring the safety of the battery and the device.

Package

The BQ24300DSGT is available in a small form factor package, typically a 10-pin VSON (Very Small Outline No-Lead) package.

Essence

The essence of the BQ24300DSGT lies in its ability to regulate and protect the battery during the charging process, ensuring optimal performance and safety.

Packaging/Quantity

The IC is commonly supplied in reels or tubes, with quantities varying depending on the manufacturer's packaging specifications.

Specifications

• Input Voltage Range: 4.35V - 6.45V
• Charging Current Range: 100mA - 2A
• Operating Temperature Range: -40°C to +85°C
• Output Voltage Accuracy: ±1%
• Overvoltage Protection Threshold: 4.4V
• Overcurrent Protection Threshold: Configurable via external resistor

Detailed Pin Configuration

The BQ24300DSGT has the following pin configuration:

1. VIN: Input voltage pin
2. GND: Ground pin
3. BAT: Battery connection pin
4. TS: Thermal shutdown pin
5. PROG: Programming pin for setting overcurrent protection threshold
6. STAT: Status output pin
7. EN: Enable pin for controlling the charging process
8. ISET: Current setting pin for configuring charging current
9. VREG: Voltage regulation output pin
10. VBUS: USB input voltage pin

Functional Features

• Overvoltage Protection: The IC monitors the battery voltage and disconnects it from the charging source when it exceeds the predefined threshold.
• Overcurrent Protection: It safeguards the battery by limiting the charging current to a safe level, preventing damage due to excessive current flow.
• Thermal Shutdown: In case of excessive temperature rise, the IC shuts down the charging process to prevent overheating and potential hazards.
• Charging Modes: The BQ24300DSGT supports both constant voltage and constant current charging modes, allowing efficient and controlled charging of the battery.

Advantages and Disadvantages

Advantages

• Compact size and high integration make it suitable for portable electronic devices.
• Provides comprehensive protection features for the battery and the device.
• Offers flexibility in charging current and voltage settings.
• Efficient charging algorithm ensures optimal battery performance.

Disadvantages

• Limited to a specific range of input voltage and charging current.
• Requires external components for configuring overcurrent protection threshold.

Working Principles

The BQ24300DSGT operates by continuously monitoring the battery voltage, charging current, and temperature. It regulates the charging process based on these parameters to ensure safe and efficient charging. The IC uses a combination of voltage and current control techniques to maintain the desired charging characteristics.

Detailed Application Field Plans

The BQ24300DSGT is widely used in various portable electronic devices, including but not limited to: - Smartphones - Tablets - Wearable devices (smartwatches, fitness trackers) - Portable gaming consoles - Bluetooth headphones

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the BQ24300DSGT are: - MCP73831 - MAX1555 - LTC4054

These alternatives provide comparable features and can be considered as replacements for the BQ24300DSGT in specific applications.

In conclusion, the BQ24300DSGT is a versatile integrated circuit designed for battery charging and protection in portable electronic devices. Its compact size, comprehensive protection features, and efficient charging algorithm make it an ideal choice for various applications.