BQ24770RUYR - English Editing Encyclopedia Entry

Product Overview

Category

The BQ24770RUYR belongs to the category of power management integrated circuits (PMICs).

Use

This PMIC is specifically designed for use in battery charging applications, providing efficient and reliable charging solutions.

Characteristics

• High efficiency: The BQ24770RUYR offers high charging efficiency, minimizing energy loss during the charging process.
• Fast charging: It supports fast charging protocols, allowing for quicker charging times.
• Wide input voltage range: The PMIC can handle a wide range of input voltages, making it suitable for various charging scenarios.
• Comprehensive protection features: It incorporates multiple protection mechanisms to ensure safe charging, including overvoltage, overcurrent, and overtemperature protection.

Package and Quantity

The BQ24770RUYR is available in a small outline package (SOP) with 20 pins. It is typically sold in reels containing a quantity of 250 units.

Specifications

• Input voltage range: 4.5V to 24V
• Output voltage range: 3.3V to 25.2V
• Charging current range: Up to 8A
• Operating temperature range: -40°C to 85°C
• Efficiency: Up to 95%

Pin Configuration

The BQ24770RUYR has the following pin configuration:

1. VDD: Power supply input
2. ACIN: Input voltage from AC adapter
3. TS/STAT: Thermistor input / Status output
4. SRN: Serial data input
5. SCL: Serial clock input
6. BAT: Battery voltage sense input
7. ISET: Charging current set input
8. PROG: Programming resistor input
9. INT: Interrupt output
10. ILIM: Input current limit set input
11. VREF: Reference voltage output
12. SDA: Serial data I/O
13. SCL: Serial clock I/O
14. SRP: System reset output
15. SRN: System reset input
16. TS2: Thermistor 2 input
17. TS1: Thermistor 1 input
18. GND: Ground
19. VSS: Ground
20. VDD: Power supply input

Functional Features

• Dynamic power management: The BQ24770RUYR dynamically adjusts the charging current and voltage based on the battery's state of charge, optimizing the charging process.
• Charge termination algorithms: It employs advanced charge termination algorithms to prevent overcharging and extend battery life.
• System reset control: The PMIC provides system reset signals to ensure proper device operation during charging cycles.
• Communication interface: It supports a serial communication interface for easy integration with microcontrollers or other control systems.

Advantages and Disadvantages

Advantages

• High charging efficiency reduces energy waste.
• Fast charging capability saves time.
• Wide input voltage range allows for versatile usage.
• Comprehensive protection features ensure safe charging.

Disadvantages

• Limited to battery charging applications only.
• Requires additional components for complete charging system implementation.

Working Principles

The BQ24770RUYR operates by regulating the charging current and voltage supplied to the battery. It continuously monitors the battery's state of charge and adjusts the charging parameters accordingly. The PMIC utilizes charge termination algorithms to determine when the battery is fully charged, preventing overcharging and potential damage.

Application Field Plans

The BQ24770RUYR finds extensive application in various portable electronic devices that require battery charging capabilities. Some notable application fields include: - Smartphones and tablets - Laptops and ultrabooks - Portable gaming consoles - Wearable devices - Portable medical equipment

Alternative Models

For users seeking alternative options, the following models offer similar functionality to the BQ24770RUYR: 1. BQ24780RUYR 2. BQ24790RUYR 3. BQ24760RUYR 4. BQ24750RUYR

These models share comparable features and specifications, providing flexibility in choosing the most suitable PMIC for specific charging requirements.

In conclusion, the BQ24770RUYR is a highly efficient power management integrated circuit designed for battery charging applications. With its advanced features, it offers reliable and fast charging solutions while ensuring the safety of the charging process. Its wide range of applications and availability of alternative models make it a versatile choice for various portable electronic devices.