BQ24152YFFT - English Editing Encyclopedia Entry

Product Overview

Category

The BQ24152YFFT 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 in various electronic devices.

Characteristics

• The BQ24152YFFT offers high efficiency charging with its advanced power management features.
• It supports multiple charging modes, including fast charging and trickle charging.
• This IC incorporates various safety mechanisms to protect the battery from overcharging, overvoltage, and overcurrent conditions.
• It is designed to work with a wide range of battery chemistries, such as lithium-ion (Li-ion) and lithium-polymer (LiPo).

Package and Essence

The BQ24152YFFT is available in a small form factor package, typically a 20-pin QFN (Quad Flat No-Lead) package. Its compact size makes it suitable for space-constrained applications.

Packaging/Quantity

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

Specifications

• Input Voltage Range: 4.5V to 17V
• Charging Voltage Range: 3.5V to 4.44V
• Maximum Charging Current: 2A
• Operating Temperature Range: -40°C to 85°C
• Control Interface: I2C (Inter-Integrated Circuit)

Detailed Pin Configuration

The BQ24152YFFT features a 20-pin QFN package with the following pin configuration:

1. VIN: Input voltage supply
2. VBUS: USB input voltage supply
3. TS: Thermistor input for temperature monitoring
4. STAT: Status output pin
5. PG: Power good output pin
6. ISET: Charging current setting pin
7. VBAT: Battery voltage output
8. TS/NTC: Thermistor input or NTC thermistor input
9. SDA: I2C data line
10. SCL: I2C clock line
11. EN: Enable control pin
12. ILIM: Input current limit setting pin
13. SRN/SR: Soft-start resistor network or soft-start capacitor
14. BATFET: Battery FET control pin
15. SYS: System voltage output
16. INT: Interrupt output pin
17. TS2: Second thermistor input for temperature monitoring
18. TS1: First thermistor input for temperature monitoring
19. GND: Ground reference
20. PGND: Power ground reference

Functional Features

• Fast Charging: The BQ24152YFFT supports high-speed charging, allowing devices to quickly recharge their batteries.
• Thermal Regulation: It incorporates thermal regulation mechanisms to prevent overheating during the charging process.
• Charge Termination: The IC automatically terminates the charging process when the battery reaches its full capacity, preventing overcharging.
• Safety Protection: It includes built-in protection features such as overvoltage protection, overcurrent protection, and short-circuit protection to ensure safe charging operations.

Advantages and Disadvantages

Advantages

• High charging efficiency
• Multiple charging modes
• Compact form factor
• Wide compatibility with battery chemistries
• Integrated safety mechanisms

Disadvantages

• Requires external components for complete charging circuit implementation
• Limited maximum charging current compared to some other ICs in the market

Working Principles

The BQ24152YFFT operates based on a switching regulator topology. It utilizes a combination of pulse width modulation (PWM) and constant current/constant voltage (CC/CV) charging techniques to efficiently charge the battery. The IC continuously monitors the battery voltage, current, and temperature to ensure optimal charging performance while protecting the battery from potential damage.

Detailed Application Field Plans

The BQ24152YFFT is widely used in various portable electronic devices, including smartphones, tablets, digital cameras, and portable gaming consoles. It finds applications in consumer electronics, medical devices, and industrial equipment where efficient and reliable battery charging is essential.

Detailed and Complete Alternative Models

• BQ24153YFFR
• BQ24156YFFR
• BQ24157YFFR
• BQ24158YFFR
• BQ24159YFFR

These alternative models offer similar functionality and features, providing options for designers based on specific requirements and preferences.

Word count: 533 words