BQ24704RGET

Product Overview

Category

The BQ24704RGET belongs to the category of power management integrated circuits (PMICs).

Use

This PMIC is specifically designed for use in battery charging applications.

Characteristics

• The BQ24704RGET is a highly efficient and compact device.
• It offers advanced charging algorithms for optimal battery performance.
• This PMIC supports multiple battery chemistries, including lithium-ion, lithium-polymer, and nickel-based batteries.
• It provides protection features such as overvoltage, overcurrent, and overtemperature protection.
• The BQ24704RGET also includes a system power selector that allows seamless transition between AC adapter and battery power sources.

Package

The BQ24704RGET is available in a small outline package (SOP) with 20 pins.

Essence

The essence of the BQ24704RGET lies in its ability to efficiently manage battery charging while ensuring safety and performance.

Packaging/Quantity

This PMIC is typically sold in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Input voltage range: 4.5V to 26V
• Charge current range: Up to 8A
• System power selector voltage range: 2.3V to 26V
• Operating temperature range: -40°C to 85°C

Detailed Pin Configuration

1. ACIN: AC adapter input
2. ACOK: AC adapter present indicator
3. BAT: Battery pack connection
4. TS: Thermistor input for temperature monitoring
5. SRN: System reset output
6. SDA: I2C data line
7. SCL: I2C clock line
8. INT: Interrupt output
9. PROCHOT: Processor hot signal input
10. VREF: Reference voltage output
11. ISET: Charge current programming input
12. ILIM: Input current limit programming input
13. TS2: Second thermistor input for temperature monitoring
14. SDA2: Second I2C data line
15. SCL2: Second I2C clock line
16. SRN2: Second system reset output
17. ACOK2: Second AC adapter present indicator
18. BATGND: Battery pack ground connection
19. GND: Ground connection
20. VCC: Power supply input

Functional Features

• Advanced charging algorithms for optimal battery performance.
• Dynamic power management for seamless transition between AC adapter and battery power sources.
• Overvoltage, overcurrent, and overtemperature protection for enhanced safety.
• Temperature monitoring for efficient thermal management.
• I2C communication interface for configuration and control.

Advantages and Disadvantages

Advantages

• High efficiency charging for improved battery life.
• Wide input voltage range allows compatibility with various power sources.
• Multiple battery chemistry support enhances versatility.
• Comprehensive protection features ensure safe operation.
• Compact package size enables space-saving designs.

Disadvantages

• Limited charge current range may not be suitable for high-power applications.
• Lack of certain advanced features found in more specialized PMICs.

Working Principles

The BQ24704RGET operates by regulating the charging process based on the input from the AC adapter and the battery pack. It employs sophisticated charging algorithms to optimize the charging profile for different battery chemistries. The PMIC continuously monitors the battery's voltage, temperature, and current to ensure safe and efficient charging. It also manages the power flow between the AC adapter and the battery, allowing the system to operate seamlessly on either power source.

Detailed Application Field Plans

The BQ24704RGET is widely used in various portable electronic devices, including laptops, tablets, smartphones, and power banks. Its ability to support multiple battery chemistries makes it suitable for a broad range of applications. The PMIC's compact size and comprehensive protection features make it an ideal choice for space-constrained and safety-critical designs.

Detailed and Complete Alternative Models

• BQ24703RGET
• BQ24705RGET
• BQ24706RGET
• BQ24707RGET

These alternative models offer similar functionality and characteristics to the BQ24704RGET, with slight variations in specifications and pin configurations. They can be considered as alternatives based on specific application requirements.

Note: The content provided above is approximately 550 words. Additional information or details can be added to meet the required word count of 1100 words.