Overview
The BQ24278RGER is a highly integrated single-cell Li-ion battery charger and system power path management device, designed and manufactured by Texas Instruments. This product is tailored for portable applications, offering a compact and efficient solution for charging batteries while simultaneously powering the system. The BQ24278RGER is positioned as an ideal choice for smartphones, tablets, and other portable electronics, thanks to its advanced features such as high charging efficiency, thermal regulation, and comprehensive safety protections. Its unique selling points include its small form factor, high integration, and robust performance, making it a competitive option in the battery management market.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Input Voltage Range | 4.35 to 6.45 | V | |
| Charge Voltage Range | 3.5 to 4.44 | V | |
| Max Charge Current | 2 | A | |
| Operating Temperature Range | -40 to 85 | °C | |
| Package | VQFN-24 | ||
| Integrated FETs | Yes | ||
| Thermal Regulation | Yes | ||
| Safety Features | Overvoltage, Overcurrent, Thermal Shutdown |
Key Features
- Integrated Power Path Management for simultaneous charging and system operation.
- High charging efficiency with thermal regulation to optimize charging current based on temperature.
- Comprehensive safety features including overvoltage, overcurrent, and thermal shutdown protections.
- Compact VQFN-24 package suitable for space-constrained applications.
- Programmable charging parameters through I2C interface for flexible operation.
Applications
The BQ24278RGER is widely used in various portable electronic devices, including smartphones, tablets, and portable media players. Its ability to manage both battery charging and system power simultaneously makes it particularly valuable in applications where space and efficiency are critical. Additionally, its robust safety features ensure reliable operation in demanding environments, making it suitable for industrial and medical portable devices as well.
Q & A
1. What is the maximum input voltage supported by the BQ24278RGER?
The maximum input voltage supported is 6.45V.
2. Can the BQ24278RGER charge batteries other than Li-ion?
No, it is specifically designed for single-cell Li-ion batteries.
3. How does the thermal regulation feature work?
The thermal regulation feature adjusts the charging current based on the temperature to prevent overheating.
4. What is the maximum charge current?
The maximum charge current is 2A.
5. Is the BQ24278RGER suitable for automotive applications?
While it has robust safety features, it is primarily designed for portable electronics and may not meet all automotive standards.
6. What is the operating temperature range?
The operating temperature range is -40 to 85°C.
7. Does it include integrated FETs?
Yes, it includes integrated FETs for power path management.
8. How is the BQ24278RGER programmed?
It is programmed via an I2C interface.
9. What package does the BQ24278RGER come in?
It comes in a VQFN-24 package.
10. What safety features are included?
It includes overvoltage, overcurrent, and thermal shutdown protections.
