BQ24167YFFT - English Editing Encyclopedia Entry

Product Overview

Category

The BQ24167YFFT belongs to the category of integrated circuits (ICs) specifically designed for battery charging applications.

Use

This IC is primarily used for managing and controlling the charging process of rechargeable batteries, ensuring efficient and safe charging.

Characteristics

• The BQ24167YFFT offers high efficiency charging, minimizing energy loss during the charging process.
• It supports various battery chemistries, including lithium-ion (Li-ion) and lithium-polymer (LiPo) batteries.
• The IC incorporates advanced safety features to protect the battery from overcharging, overvoltage, and overcurrent conditions.
• It provides accurate battery voltage and current monitoring capabilities.
• The BQ24167YFFT is designed to operate within a wide input voltage range, making it suitable for various power sources.

Package and Quantity

The BQ24167YFFT is available in a small form factor package, such as a thin quad flat no-lead (QFN) package. The exact package dimensions and pin configuration are detailed below. The IC is typically sold in reels or trays, with quantities varying based on customer requirements.

Specifications

• Input Voltage Range: 4.5V to 17V
• Charging Voltage Range: 3.5V to 4.44V per cell
• Maximum Charging Current: 4.5A
• Operating Temperature Range: -40°C to 85°C
• Control Interface: I2C or Standalone Operation
• Battery Chemistry Support: Li-ion, LiPo, etc.
• Safety Features: Overvoltage Protection, Overcurrent Protection, Thermal Regulation, etc.

Pin Configuration

The BQ24167YFFT has a specific pin configuration that enables its functionality. The following table provides a detailed pinout description:

| Pin Number | Pin Name | Description | |------------|----------|-------------| | 1 | VIN | Input Voltage | | 2 | GND | Ground | | 3 | TS | Temperature Sense | | 4 | STAT | Charging Status Indicator | | 5 | ISET | Charging Current Setting | | 6 | VBUS | USB Input Voltage | | 7 | SDA | I2C Data Line | | 8 | SCL | I2C Clock Line | | 9 | BAT | Battery Connection | | 10 | PG | Power Good Indicator | | 11 | TS/NTC | Temperature Sense or NTC Thermistor | | 12 | SYS | System Output Voltage | | 13 | CE | Charge Enable | | 14 | SRN | System Reset | | 15 | INT | Interrupt Output |

Functional Features

• High Efficiency Charging: The BQ24167YFFT incorporates advanced charging algorithms and power management techniques to maximize charging efficiency, reducing energy loss during the process.
• Safety Protection: This IC includes multiple safety features such as overvoltage protection, overcurrent protection, and thermal regulation, ensuring safe charging and preventing damage to the battery.
• Flexible Control Interface: The BQ24167YFFT can be controlled either through an I2C interface for advanced configuration or operated in standalone mode with fixed charging parameters.
• Accurate Monitoring: It provides precise monitoring of battery voltage and current, allowing users to monitor the charging status and make informed decisions.

Advantages and Disadvantages

Advantages

• High charging efficiency reduces energy waste.
• Wide input voltage range enables compatibility with various power sources.
• Multiple safety features protect the battery from potential damage.
• Accurate monitoring capabilities provide real-time charging status information.

Disadvantages

• The BQ24167YFFT may require additional external components for full functionality, increasing the overall system complexity.
• Limited availability of alternative models from different manufacturers.

Working Principles

The BQ24167YFFT operates based on a sophisticated charging algorithm that regulates the charging voltage and current to ensure optimal battery charging. It continuously monitors the battery's voltage and adjusts the charging parameters accordingly. The IC also incorporates safety mechanisms to prevent overcharging, overvoltage, and overcurrent conditions, safeguarding the battery and the charging circuitry.

Application Field Plans

The BQ24167YFFT finds applications in various fields where efficient and safe battery charging is required. Some potential application areas include: - Portable electronic devices (smartphones, tablets, etc.) - Wearable devices (smartwatches, fitness trackers, etc.) - Industrial equipment - Automotive systems - Medical devices

Alternative Models

While the BQ24167YFFT offers excellent performance and features, there are alternative models available in the market that serve similar purposes. Some notable alternatives include: