Overview
The BQ24251RGER is a highly integrated single-cell Li-ion battery charger and system power path management device designed by Texas Instruments. This component is specifically tailored for space-constrained portable applications that require high-capacity batteries. It features a single input powered by a USB port or AC wall adapter, providing a versatile solution for charging and power management. The BQ24251RGER is positioned as a reliable and efficient choice for portable electronics, including smartphones, tablets, and other battery-powered devices. Its unique selling points include advanced power path management, high charging efficiency, and compact design, making it a competitive option in the market.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Input Voltage | 4.35 to 6.45 | V | Single input via USB or AC adapter |
| Charging Current | Up to 2 | A | Programmable |
| Battery Voltage | 4.2 | V | Single-cell Li-ion/Li-polymer |
| Operating Temperature | -40 to +85 | °C | Wide range for industrial use |
| Package | VQFN-24 | - | Compact footprint |
| Efficiency | Up to 92 | % | High efficiency for reduced heat |
| Power Path Management | Yes | - | Simultaneous charge and system power |
| Protection Features | Overvoltage, Overcurrent, Thermal | - | Ensures safe operation |
Key Features
- Advanced Power Path Management: Allows simultaneous charging and system operation, ensuring uninterrupted power supply.
- High Charging Efficiency: Up to 92% efficiency reduces heat generation and improves battery life.
- Compact Design: VQFN-24 package is ideal for space-constrained applications.
- Programmable Charging Current: Flexibility to adjust charging current up to 2A for various battery capacities.
- Comprehensive Protection: Includes overvoltage, overcurrent, and thermal protection for enhanced safety.
Applications
The BQ24251RGER is widely used in portable electronics, including smartphones, tablets, and handheld devices. Its efficient power management and compact design make it suitable for applications requiring high-capacity batteries in limited spaces. Additionally, it is employed in medical devices, industrial equipment, and IoT devices where reliable battery charging and power path management are critical. Its ability to operate in a wide temperature range further extends its usability in harsh environments.
Q & A
1. What is the maximum charging current supported by the BQ24251RGER?
The BQ24251RGER supports a maximum charging current of 2A, which is programmable based on application requirements.
2. Can the BQ24251RGER operate in extreme temperatures?
Yes, the BQ24251RGER is designed to operate in a temperature range of -40°C to +85°C, making it suitable for industrial and harsh environments.
3. Does the BQ24251RGER support simultaneous charging and system operation?
Yes, it features advanced power path management, allowing simultaneous charging and system power supply.
4. What type of battery is compatible with the BQ24251RGER?
The BQ24251RGER is compatible with single-cell Li-ion and Li-polymer batteries.
5. What is the efficiency of the BQ24251RGER?
The BQ24251RGER offers up to 92% charging efficiency, reducing heat generation and improving battery life.
6. What protection features are included in the BQ24251RGER?
It includes overvoltage, overcurrent, and thermal protection to ensure safe operation.
7. What is the input voltage range for the BQ24251RGER?
The input voltage range is 4.35V to 6.45V, suitable for USB or AC adapter inputs.
8. What package does the BQ24251RGER come in?
It is available in a compact VQFN-24 package.
9. Is the BQ24251RGER suitable for portable electronics?
Yes, its compact design and efficient power management make it ideal for smartphones, tablets, and other portable devices.
10. Can the BQ24251RGER be used in medical devices?
Yes, its reliability and safety features make it suitable for medical devices and other critical applications.
