BQ24704RGER

Product Overview

Category

BQ24704RGER belongs to the category of power management integrated circuits (PMICs).

Use

This PMIC is primarily used for battery charging and system power management in portable electronic devices.

Characteristics

• Efficient charging: The BQ24704RGER offers high-efficiency charging capabilities, ensuring optimal use of power.
• Advanced protection features: It incorporates various protection mechanisms such as overvoltage protection, overcurrent protection, and thermal regulation to safeguard the device and battery.
• Flexible package: The BQ24704RGER comes in a small form factor package, making it suitable for space-constrained applications.
• Wide input voltage range: It can operate with input voltages ranging from 3.6V to 24V, providing versatility in different power supply scenarios.
• Multiple charging profiles: This PMIC supports multiple charging profiles, allowing compatibility with various battery chemistries and capacities.

Package and Quantity

The BQ24704RGER is available in a 24-pin VQFN (Very Thin Quad Flat No-Lead) package. It is typically sold in reels containing a quantity of 250 units.

Specifications

• Input Voltage Range: 3.6V to 24V
• Charging Voltage Range: 3.6V to 24V
• Charging Current Range: Up to 8A
• Operating Temperature Range: -40°C to 85°C
• Package Type: 24-pin VQFN

Detailed Pin Configuration

The BQ24704RGER has a total of 24 pins, each serving a specific function. Here is a detailed pin configuration:

1. VIN: Input voltage pin
2. ACOK: AC adapter present output
3. ACSEL: AC adapter selection input
4. SRN: Serial interface ready output
5. SDA: Serial data input/output
6. SCL: Serial clock input
7. TS: Thermistor input for thermal regulation
8. BAT: Battery voltage sense input
9. ISET: Charging current set pin
10. VSS: Ground reference
11. VCC: Power supply input
12. STAT1: Status output 1
13. STAT2: Status output 2
14. INT: Interrupt output
15. CE: Charge enable input
16. ILIM: Input current limit set pin
17. VREF: Reference voltage output
18. SRP: System reset push-button input
19. SRN: System reset output
20. DSRP: Dynamic system reset push-button input
21. DSRN: Dynamic system reset output
22. VSS: Ground reference
23. VCC: Power supply input
24. VDD: Digital power supply input

Functional Features

The BQ24704RGER offers several functional features, including:

• Dynamic Power Management: It dynamically adjusts the charging current based on the system's power requirements, optimizing power utilization.
• Charge Termination: The PMIC automatically terminates the charging process when the battery reaches its full capacity, preventing overcharging and extending battery life.
• Thermal Regulation: It monitors the temperature of the device and adjusts the charging parameters to prevent overheating, ensuring safe operation.
• Fault Detection and Protection: The BQ24704RGER detects various fault conditions such as short circuits, overvoltage, and overcurrent, triggering appropriate protection mechanisms to safeguard the device and battery.

Advantages and Disadvantages

Advantages

• High charging efficiency
• Multiple charging profiles for compatibility
• Advanced protection features
• Small form factor package

Disadvantages

• Limited charging current compared to some other PMICs in the market
• Lack of built-in USB power delivery support

Working Principles

The BQ24704RGER operates by regulating the charging current and voltage supplied to the battery. It continuously monitors the battery's state of charge, temperature, and system power requirements to optimize the charging process. The PMIC communicates with the system controller through a serial interface, allowing for dynamic power management and real-time status monitoring.

Detailed Application Field Plans

The BQ24704RGER is widely used in various portable electronic devices, including:

1. Laptops and Ultrabooks
2. Tablets and Convertible Devices
3. Smartphones and Mobile Devices
4. Portable Gaming Consoles
5. Portable Medical Devices
6. Wearable Electronics

Its versatile charging capabilities and advanced protection features make it suitable for a broad range of applications requiring efficient battery charging and power management.

Detailed and Complete Alternative Models

If the BQ24704RGER does not meet specific requirements, alternative models with similar functionalities include:

1. BQ24703RGER
2. BQ24705RGER
3. BQ24706RGER
4. BQ