BQ24090DGQR

The BQ24090DGQR is a highly integrated, flexible single-cell Li-Ion and Li-Polymer battery charger IC. It offers a complete power management solution for portable devices requiring battery charging functionality. The IC features a highly configurable charge management system, making it suitable for a wide range of battery charging applications.

Pinout

(Note: The pin configuration below is a general representation. Refer to the specific datasheet for precise details.)

• PG: Power Good Indicator Pin
• TS: Temperature Sense Input
• EN : Enable Input Pin
• STAT : Charge Status Output
• USB: USB Input Pin
• VREG: Regulated Output Voltage Pin

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the BQ24090DGQR IC for a visual representation.

Key Features

• Single-Cell Li-Ion Battery Charger: Supports charging of single-cell Li-Ion and Li-Polymer batteries for portable device applications.
• Programmable Charge Current: The charge current can be configured using external resistors, providing flexibility in charging capabilities.
• Thermal Regulation: Features thermal regulation to prevent overheating during charging, ensuring safe operation.
• Charge Status Indication: Provides a charge status output pin for monitoring the charging process.
• Input Overvoltage Protection: Includes input overvoltage protection to safeguard the device during voltage spikes.
• Integrated Power FETs: Built-in power FETs simplify the charging circuit design and reduce external component count.

Note: For detailed technical specifications, please refer to the BQ24090DGQR datasheet.

Application

• Portable Devices: Ideal for battery charging applications in portable electronics such as smartphones, tablets, and wearable devices.
• Power Banks: Suitable for integrating into power bank designs to enable efficient charging of Li-Ion batteries.
• IoT Devices: Used in IoT devices that require reliable battery charging and power management features.

Functionality

The BQ24090DGQR is a versatile battery charger IC designed for single-cell Li-Ion and Li-Polymer batteries. It provides efficient and reliable charging functionality for a variety of portable electronic devices.

Usage Guide

• Input Power: Connect the USB input pin to the power source for charging.
• Battery Connection: Connect the Li-Ion or Li-Polymer battery to the appropriate terminals for charging.
• Enable Control: Use the EN pin to enable or disable the charging process as needed.

Frequently Asked Questions

Q: Can the BQ24090DGQR charger IC support fast charging?
A: The BQ24090DGQR is designed for flexible charge current programming, allowing for customized charging profiles, including fast charging capabilities.

Q: Is the BQ24090DGQR suitable for low-power IoT device applications?
A: Yes, the BQ24090DGQR's thermal regulation and integrated power FETs make it suitable for low-power IoT devices requiring efficient battery charging and management.