BQ24150AYFFT - English Editing Encyclopedia Entry

Product Overview

Category

BQ24150AYFFT 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

• High efficiency: The BQ24150AYFFT offers a high charging efficiency, ensuring optimal use of power during the charging process.
• Fast charging capability: This IC supports fast charging protocols, allowing for quicker battery recharge times.
• Compact package: The BQ24150AYFFT comes in a small form factor package, making it suitable for space-constrained designs.
• Advanced protection features: It incorporates multiple safety mechanisms to protect the battery and the charging circuitry from overvoltage, overcurrent, and overheating.

Package and Quantity

The BQ24150AYFFT is available in a small footprint package, typically measuring 3mm x 3mm. It is supplied in tape and reel packaging, with a quantity of 3000 units per reel.

Specifications

• Input voltage range: 4.35V - 6.45V
• Charging current: Up to 2A
• Output voltage range: 3.5V - 4.4V
• Operating temperature range: -40°C to +85°C
• Standby current: Less than 100µA

Pin Configuration

The BQ24150AYFFT has the following pin configuration:

1. VIN: Input voltage pin
2. GND: Ground pin
3. TS: Thermal sensing pin
4. STAT: Status output pin
5. EN: Enable control pin
6. ISET: Current limit setting pin
7. PROG: Charge termination setting pin
8. VBAT: Battery voltage output pin
9. VBUS: USB input voltage pin

Functional Features

• Constant current (CC) and constant voltage (CV) charging modes
• Thermal regulation to prevent overheating
• Battery temperature monitoring for safety
• Automatic recharge initiation after battery removal
• Charge termination based on programmable thresholds
• USB detection and enumeration for proper charging negotiation

Advantages and Disadvantages

Advantages

• High charging efficiency ensures optimal power utilization.
• Fast charging capability reduces battery recharge times.
• Compact package allows for space-constrained designs.
• Advanced protection features safeguard the battery and charging circuitry.

Disadvantages

• Limited input voltage range may not be suitable for all applications.
• Standby current could be further reduced for ultra-low-power devices.

Working Principles

The BQ24150AYFFT operates by regulating the charging current and voltage supplied to the lithium-ion battery. It employs a CC mode initially, where a constant current is provided until the battery voltage reaches a predetermined threshold. Then, it switches to CV mode, maintaining a constant voltage until the charging current drops below a specified level. The IC continuously monitors the battery temperature and adjusts the charging parameters accordingly to ensure safe and efficient charging.

Detailed Application Field Plans

The BQ24150AYFFT finds extensive application in various portable electronic devices, including: - Smartphones - Tablets - Wearable devices - Portable media players - Bluetooth headsets

Detailed Alternative Models

1. BQ24151YFFR
2. BQ24152YFFR
3. BQ24153YFFR
4. BQ24154YFFR
5. BQ24155YFFR

These alternative models offer similar functionality and can be considered as replacements for the BQ24150AYFFT in specific applications.

In conclusion, the BQ24150AYFFT is a highly efficient and compact integrated circuit designed for charging lithium-ion batteries. Its fast charging capability, advanced protection features, and small form factor make it an ideal choice for various portable electronic devices.