BQ24297RGER

The BQ24297RGER is a highly integrated single-cell Li-Ion battery charger IC with PowerPath management for space-limited and cost-sensitive applications. It provides seamless operation for charging and system power delivery, making it ideal for portable electronic devices.

Pinout

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

• VIN: Input Supply Voltage
• BAT: Battery Connection
• TS: Temperature Sense Input
• PG: Power Good Output
• STAT: Charging Status Output
• EN: Enable Pin
• PROG: Charge Current Programming Pin
• TS1: NTC Input for Thermistor Temperature Monitoring
• TS2: NTC Input for Thermistor Temperature Monitoring
• VSS: Ground

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the BQ24297RGER IC for a visual representation.

Key Features

• PowerPath Management: Enables seamless operation between input power and battery power for continuous device functionality.
• Integrated Charging: Provides a complete charging solution with programmable charge current and voltage regulation.
• Temperature Monitoring: Supports external thermistor inputs for accurate temperature monitoring and charge control.
• Status Outputs: Offers power good and charging status outputs for system monitoring and control.
• Compact Design: Packaged in a space-saving, thermally enhanced 24-pin VQFN package for optimized PCB layout.

Note: For detailed technical specifications, please refer to the BQ24297RGER datasheet.

Application

• Portable Electronic Devices: Ideal for charging Li-Ion batteries in smartphones, tablets, and other portable devices.
• Wearables: Suitable for wearable technology applications requiring compact and efficient battery charging solutions.
• IOT Devices: Used in Internet of Things (IoT) devices for reliable and integrated battery charging functionality.

Functionality

The BQ24297RGER integrates charging circuitry, power management, and temperature monitoring to provide a comprehensive solution for single-cell Li-Ion battery charging. It ensures efficient and safe charging for portable electronic devices.

Usage Guide

• Input Power: Connect VIN (Pin 1) to the input supply voltage for charging operation.
• Battery Connection: Connect BAT (Pin 2) to the positive terminal of the Li-Ion battery.
• Charge Configuration: Use the EN (Pin 5) and PROG (Pin 6) pins for enabling charging and programming charge current, respectively.

Frequently Asked Questions

Q: Can the BQ24297RGER charge multiple cells in series?
A: No, the BQ24297RGER is designed for single-cell Li-Ion battery charging. For multi-cell configurations, consider alternative charger ICs designed for series charging.

Q: Is thermal protection included in the BQ24297RGER?
A: Yes, the BQ24297RGER features built-in thermal protection to prevent overheating during charging cycles.