BQ24314CDSGR

Product Overview

Category

BQ24314CDSGR 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 for power management
• Battery charging and protection functions
• Compact size and low power consumption
• High efficiency and reliability
• Wide input voltage range
• Overvoltage and overcurrent protection

Package

BQ24314CDSGR 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 BQ24314CDSGR 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: 3.5V - 26V
• Charging Current: Up to 2A
• Operating Temperature Range: -40°C to +85°C
• Battery Voltage Range: 3.5V - 4.5V
• Overvoltage Protection Threshold: 4.6V
• 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. EN: Enable pin for device control
9. ILIM: Current limit setting pin
10. VBUS: USB input voltage 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 for temperature monitoring and protection
• Power good indication for system status monitoring
• Adjustable charging current limit for flexibility
• Enable pin for device control and power management

Advantages and Disadvantages

Advantages

• Compact size allows for easy integration into portable electronic devices
• Wide input voltage range enables compatibility with various power sources
• Efficient charging algorithm ensures fast and safe battery charging
• Comprehensive protection features enhance battery lifespan and safety
• Adjustable charging current limit offers flexibility for different battery capacities

Disadvantages

• Limited charging current capacity may not be suitable for high-power devices
• Lack of advanced communication interfaces for battery management systems

Working Principles

BQ24314CDSGR operates by regulating the charging process of a connected battery. It monitors the input voltage, battery voltage, and charging current to ensure optimal charging conditions. The device switches between constant current and constant voltage modes based on the battery's state of charge. Various protection mechanisms, such as overvoltage and overcurrent protection, are implemented to prevent damage to the battery and ensure safe operation.

Detailed Application Field Plans

BQ24314CDSGR finds applications in a wide range of portable electronic devices, including: - Smartphones - Tablets - Wearable devices (smartwatches, fitness trackers) - Portable gaming consoles - Bluetooth speakers - GPS navigation devices

Detailed and Complete Alternative Models

1. BQ24075RGTR: Similar functionality with a higher charging current capacity of up to 3A.
2. BQ24296RGET: Offers additional features such as USB OTG (On-The-Go) support and I2C communication interface.
3. BQ25120YFPR: Designed for ultra-low-power applications with a focus on energy harvesting and power management.

These alternative models provide similar functionality to BQ24314CDSGR but may offer different specifications and additional features based on specific application requirements.

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