BQ24151YFFR - English Editing Encyclopedia Entry

Product Overview

Category

BQ24151YFFR belongs to the category of integrated circuits (ICs) specifically designed for battery charging applications.

Use

This IC is commonly used in portable electronic devices, such as smartphones, tablets, and wearable devices, to efficiently charge lithium-ion batteries.

Characteristics

• High charging efficiency
• Fast charging capability
• Compact package size
• Low power consumption
• Advanced safety features

Package

BQ24151YFFR is available in a small form factor package, typically a 20-pin QFN (Quad Flat No-leads) package. This package offers excellent thermal dissipation properties and allows for easy integration into various electronic designs.

Essence

The essence of BQ24151YFFR lies in its ability to provide efficient and reliable charging solutions for lithium-ion batteries, ensuring optimal performance and extended battery life for portable electronic devices.

Packaging/Quantity

BQ24151YFFR is usually supplied in tape and reel packaging, with a standard quantity of 2500 units per reel.

Specifications

• Input Voltage Range: 4.35V to 6.45V
• Charging Voltage Range: 3.5V to 4.44V
• Charging Current Range: Up to 2A
• Operating Temperature Range: -40°C to +85°C
• Standby Current: < 100µA
• Overvoltage Protection: Yes
• Thermal Regulation: Yes
• Battery Temperature Monitoring: Yes
• Short Circuit Protection: Yes

Detailed Pin Configuration

1. VIN: Input voltage pin
2. GND: Ground reference pin
3. TS: Thermistor input for battery temperature monitoring
4. STAT: Status output pin indicating charging status
5. ISET: Charging current setting pin
6. VBUS: USB input voltage pin
7. PGND: Power ground reference pin
8. BAT: Battery connection pin
9. TS/NTC: Thermistor input for battery temperature monitoring (alternative)
10. PROG: Programming pin for setting charging parameters
11. ILIM: Input current limit setting pin
12. SDA: I2C data line for communication (optional feature)
13. SCL: I2C clock line for communication (optional feature)
14. INT: Interrupt output pin (optional feature)
15. CE: Charge enable control pin
16. D+/D-: USB data lines (optional feature)
17. VREG: Regulated output voltage pin
18. SYS: System voltage output pin
19. TS/NTC: Thermistor input for battery temperature monitoring (alternative)
20. VBUS: USB input voltage pin (alternative)

Functional Features

1. High Charging Efficiency: BQ24151YFFR incorporates advanced charging algorithms and power management techniques to maximize the charging efficiency, reducing energy loss during the charging process.
2. Fast Charging Capability: The IC supports fast charging protocols, such as Qualcomm Quick Charge, enabling rapid charging of compatible devices.
3. Comprehensive Safety Features: BQ24151YFFR includes multiple safety mechanisms like overvoltage protection, thermal regulation, and short circuit protection, ensuring safe and reliable charging operations.
4. Programmable Parameters: The IC allows for flexible configuration of charging parameters through the PROG pin, enabling customization based on specific battery requirements.
5. Battery Temperature Monitoring: BQ24151YFFR features thermistor inputs for accurate battery temperature monitoring, preventing overheating and optimizing charging performance.

Advantages and Disadvantages

Advantages

• High charging efficiency leads to reduced energy consumption.
• Fast charging capability saves time for users.
• Compact package size facilitates integration into various electronic designs.
• Comprehensive safety features ensure safe charging operations.
• Programmable parameters allow customization for different battery types.

Disadvantages

• Limited availability of alternative models from other manufacturers.
• May require additional external components for certain applications.

Working Principles

BQ24151YFFR operates by regulating the charging current and voltage supplied to the lithium-ion battery. It employs a combination of switching regulators, voltage references, and control logic to achieve efficient and controlled charging. The IC continuously monitors the battery status, temperature, and input voltage to optimize the charging process and protect the battery from potential damage.

Detailed Application Field Plans

BQ24151YFFR finds extensive application in the following fields:

1. Smartphones and Tablets: Enables fast and efficient charging of mobile devices, enhancing user experience.
2. Wearable Devices: Provides reliable charging solutions for smartwatches, fitness trackers, and other wearable gadgets.
3. Portable Gaming Consoles: Facilitates quick charging of gaming consoles, ensuring uninterrupted gameplay.
4. Portable Medical Devices: Supports the charging requirements of medical devices like portable monitors and diagnostic tools.
5. IoT Devices