BQ24314DSGT

Product Overview

Category

BQ24314DSGT belongs to the category of integrated circuits (ICs) specifically designed for power management applications.

Use

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

Characteristics

• Integrated circuit designed for power management
• Provides battery charging and protection functions
• Compact size and low power consumption
• High efficiency charging capability
• Overvoltage and overcurrent protection features

Package

BQ24314DSGT is available in a small form factor package, typically a 10-pin VSON (Very Small Outline No-Lead) package. This package offers excellent thermal performance and ease of integration into various electronic devices.

Essence

The essence of BQ24314DSGT lies in its ability to efficiently charge and protect batteries in portable electronic devices, ensuring safe and reliable operation.

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 - 6.45V
• Charging Current Range: 100mA - 2000mA
• Operating Temperature Range: -40°C to +85°C
• Battery Voltage Range: 3.5V - 4.5V
• Overvoltage Protection Threshold: 4.55V
• Overcurrent Protection Threshold: 2.8A

Detailed Pin Configuration

1. VIN: Input voltage pin
2. GND: Ground pin
3. BAT: Battery connection pin
4. TS: Thermistor input pin for temperature monitoring
5. STAT: Status output pin
6. PG: Power good output pin
7. ISET: Charging current setting pin
8. ILIM: Overcurrent limit setting pin
9. PROG: Programmable input pin for various functions
10. VBUS: USB voltage input pin

Functional Features

• Battery charging with constant current and constant voltage modes
• Overvoltage protection to prevent damage to the battery
• Overcurrent protection to safeguard against excessive current flow
• Thermal regulation to prevent overheating
• Charging status indication through the STAT pin
• Power good indication through the PG pin

Advantages and Disadvantages

Advantages

• Compact size enables integration into small electronic devices
• High efficiency charging reduces charging time
• Comprehensive protection features ensure battery safety
• Wide operating temperature range allows usage in various environments

Disadvantages

• Limited charging current range may not be suitable for high-capacity batteries
• Lack of programmability for certain parameters may limit customization options

Working Principles

BQ24314DSGT operates by regulating the charging current and voltage supplied to the battery. It monitors the battery voltage, temperature, and charging current to ensure safe and efficient charging. The integrated protection features detect and respond to overvoltage and overcurrent conditions, preventing potential damage to the battery.

Detailed Application Field Plans

BQ24314DSGT is widely used in portable electronic devices that require battery charging and protection. Some specific application fields include: - Smartphones - Tablets - Wearable devices (smartwatches, fitness trackers) - Portable gaming consoles - Bluetooth headphones

Detailed and Complete Alternative Models

1. BQ24075RGTR: Similar functionality with a different pin configuration
2. BQ24232RGTT: Offers additional features such as USB OTG support
3. LTC4054LES5-4.2: Alternative IC with similar charging and protection capabilities

These alternative models provide similar functionality to BQ24314DSGT and can be considered based on specific requirements and design considerations.

In conclusion, BQ24314DSGT is a compact and efficient integrated circuit designed for battery charging and protection in portable electronic devices. Its comprehensive features, small form factor, and wide application field make it a popular choice among device manufacturers.