BQ24261MYFFT - English Editing Encyclopedia Entry

Product Overview

Category

BQ24261MYFFT belongs to the category of integrated circuits (ICs) specifically designed for battery charging applications.

Use

This product is primarily used for charging lithium-ion batteries in various electronic devices such as smartphones, tablets, and portable electronics.

Characteristics

• Integrated circuit designed for battery charging
• Supports lithium-ion battery chemistry
• Provides efficient and reliable charging capabilities
• Offers advanced safety features to protect the battery and device
• Compact and space-saving design

Package

BQ24261MYFFT is available in a small form factor package, typically a thin and compact leadless package. This package ensures easy integration into electronic devices with limited space.

Essence

The essence of BQ24261MYFFT lies in its ability to provide efficient and safe charging for lithium-ion batteries, ensuring optimal performance and extended battery life.

Packaging/Quantity

This product is usually supplied in tape and reel packaging, which facilitates automated assembly processes. The exact quantity per reel may vary depending on the manufacturer's specifications.

Specifications

• Input Voltage Range: 4.35V - 6.45V
• Charging Voltage Range: 3.5V - 4.44V
• Maximum Charging Current: 2A
• Operating Temperature Range: -40°C to +85°C
• Control Interface: I2C

Detailed Pin Configuration

1. VIN: Input voltage pin
2. GND: Ground pin
3. TS: Thermistor input pin for temperature monitoring
4. STAT: Status output pin indicating charging status
5. EN: Enable pin for enabling or disabling the charging process
6. SDA: Serial data input/output pin for I2C communication
7. SCL: Serial clock input pin for I2C communication
8. BAT: Battery voltage pin
9. ISET: Charging current setting pin

Functional Features

• Constant Current (CC) and Constant Voltage (CV) charging modes
• Thermal regulation to prevent overheating during charging
• Charge termination based on battery voltage and temperature
• Reverse boost capability for USB On-The-Go (OTG) applications
• Programmable charging parameters through I2C interface
• Fault protection features such as overvoltage, overcurrent, and short-circuit protection

Advantages and Disadvantages

Advantages

• High charging efficiency
• Compact size for easy integration
• Advanced safety features protect the battery and device
• Programmable charging parameters offer flexibility
• Reverse boost capability enhances versatility

Disadvantages

• Requires additional external components for complete charging system implementation
• Limited to lithium-ion battery chemistry

Working Principles

BQ24261MYFFT operates by regulating the charging current and voltage supplied to the lithium-ion battery. It employs a CC-CV charging algorithm, where it initially provides a constant current until the battery voltage reaches a predetermined threshold. Afterward, it switches to a constant voltage mode to ensure the battery is fully charged without overcharging.

The IC continuously monitors the battery voltage and temperature to prevent any potential damage due to overvoltage or overheating. It also incorporates various fault protection mechanisms to safeguard the battery and connected devices from potential risks.

Detailed Application Field Plans

BQ24261MYFFT finds extensive application in the following fields:

1. Mobile Devices: Smartphones, tablets, and wearable devices
2. Portable Electronics: Bluetooth speakers, power banks, and handheld gaming consoles
3. IoT Devices: Wireless sensors, smart home devices, and wearable fitness trackers

Its compact size, high efficiency, and advanced safety features make it an ideal choice for these application fields.

Detailed and Complete Alternative Models

1. BQ24260MYFFT: Similar to BQ24261MYFFT, but with a lower maximum charging current of 1.5A.
2. BQ24263MYFFT: Similar to BQ24261MYFFT, but with additional USB OTG functionality.
3. BQ24262MYFFT: Similar to BQ24261MYFFT, but with a higher maximum charging current of 3A.

These alternative models offer similar functionality with slight variations in specifications, catering to different charging requirements.

In conclusion, BQ24261MYFFT is an integrated circuit designed for efficient and safe charging of lithium-ion batteries. Its compact size, advanced features, and wide range of applications make it a popular choice among electronic device manufacturers.