BQ24702PW

Overview

Product Category

BQ24702PW belongs to the category of power management integrated circuits (PMICs).

Use

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

Characteristics

• Efficient power management
• Battery charging capabilities
• System power control
• Compact package size
• Wide operating voltage range

Package and Quantity

The BQ24702PW is available in a small outline integrated circuit (SOIC) package. It is typically sold in reels or tubes containing multiple units.

Essence

The essence of BQ24702PW lies in its ability to efficiently manage power and charge batteries in electronic devices, ensuring optimal performance and extended battery life.

Specifications

• Input Voltage Range: 4.5V to 28V
• Output Voltage Range: 2.5V to 25.4V
• Charging Current Range: Up to 8A
• Operating Temperature Range: -40°C to +85°C
• Control Interface: I2C

Pin Configuration

The BQ24702PW features a 20-pin configuration with the following pin functions:

1. VDD: Power supply input for internal logic.
2. SDA: Serial data input/output for I2C communication.
3. SCL: Serial clock input for I2C communication.
4. GND: Ground reference for the IC.
5. BAT: Battery voltage input.
6. ACIN: Input voltage from AC adapter.
7. TS: Thermistor input for temperature monitoring.
8. SRN: Interrupt output indicating status change.
9. CE: Enable control input.
10. PGOOD: Power good output indicating successful operation.
11. ILIM: Current limit setting input.
12. IADP: Adapter current limit setting input.
13. ICHG: Charge current setting input.
14. VREF: Reference voltage output.
15. VSS: Ground reference for the IC.
16. VCC: Power supply input for internal logic.
17. SDA: Serial data input/output for I2C communication.
18. SCL: Serial clock input for I2C communication.
19. GND: Ground reference for the IC.
20. BAT: Battery voltage input.

Functional Features

1. Battery Charging: The BQ24702PW provides efficient charging of batteries, ensuring optimal performance and extended battery life.
2. System Power Management: It manages the power distribution within the electronic device, optimizing power usage and enhancing overall system efficiency.
3. Temperature Monitoring: The thermistor input allows temperature monitoring, enabling thermal protection and preventing overheating.
4. Control Interface: The I2C interface facilitates easy communication and control of the PMIC.

Advantages and Disadvantages

Advantages

• Efficient power management and battery charging capabilities.
• Wide operating voltage range allows compatibility with various devices.
• Compact package size enables integration into space-constrained designs.
• I2C control interface offers flexibility in system integration and control.

Disadvantages

• Limited charging current compared to some high-power applications.
• May require additional external components for certain system configurations.

Working Principles

The BQ24702PW operates by regulating the flow of power from the input source (AC adapter) to the battery and the system. It monitors the battery status, temperature, and charging current to ensure safe and efficient charging. The I2C interface allows for easy configuration and control of various charging parameters.

Application Field Plans

The BQ24702PW finds application in a wide range of electronic devices, including: - Laptops and notebooks - Tablets and smartphones - Portable gaming consoles - Portable medical devices - Industrial equipment

Alternative Models

For those seeking alternatives to the BQ24702PW, the following models offer similar functionality: - BQ24703PW - BQ24704PW - BQ24705PW

These alternative models provide comparable power management and battery charging capabilities, allowing users to choose the most suitable option for their specific requirements.

In conclusion, the BQ24702PW is a versatile power management integrated circuit that offers efficient battery charging and system power management. With its compact package size and wide operating voltage range, it finds application in various electronic devices. While it has certain limitations, such as charging current capacity, it provides numerous advantages and can be easily controlled through the I2C interface.