仕様
| 属性 | 値 |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| Applications | Supercapacitor Charger |
| Current-Supply | 1mA |
| Voltage-Supply | 5V ~ 28V |
| OperatingTemperature | -40°C ~ 85°C |
| MountingType | Surface Mount |
| Package/Case | 16-VFQFN Exposed Pad |
概要
Description
The BQ24640RVAR is a highly integrated switch-mode battery charge controller by Texas Instruments, designed for solar and other renewable energy applications. It supports efficient battery charging for single-cell to multi-cell battery packs, commonly used in portable and backup power systems. The device offers a wide input voltage range and is suitable for lithium-ion, lithium-polymer, and lead-acid batteries.
Key features include high efficiency with synchronous MOSFET technology, adjustable charge current, and accurate charge voltage regulation. The BQ24640RVAR incorporates Maximum Power Point Tracking (MPPT) capabilities, optimizing power extraction from solar panels. Safety features include battery temperature monitoring, overvoltage, and overcurrent protection.
The controller also integrates a variety of status and fault reporting mechanisms, enhancing system reliability. With its compact design and comprehensive feature set, the BQ24640RVAR is well-suited for developers and engineers looking to implement efficient and reliable battery charging solutions in renewable energy systems.
Key features include high efficiency with synchronous MOSFET technology, adjustable charge current, and accurate charge voltage regulation. The BQ24640RVAR incorporates Maximum Power Point Tracking (MPPT) capabilities, optimizing power extraction from solar panels. Safety features include battery temperature monitoring, overvoltage, and overcurrent protection.
The controller also integrates a variety of status and fault reporting mechanisms, enhancing system reliability. With its compact design and comprehensive feature set, the BQ24640RVAR is well-suited for developers and engineers looking to implement efficient and reliable battery charging solutions in renewable energy systems.
Equivalent
The BQ24640RVAR is a standalone battery charger IC from Texas Instruments. Equivalent products from other manufacturers might include the MCP73871 by Microchip Technology, LTC4009 by Analog Devices (formerly Linear Technology), and MAX8903 from Maxim Integrated (now part of Analog Devices). When selecting an equivalent, consider the specific application requirements such as charging current, battery chemistry, and additional features like input current limiting or power path management. Always verify the datasheet specifications to ensure compatibility.
Features
The BQ24640RVAR is a highly efficient, synchronous battery charger controller designed for solar and adapter power sources. Key features include:
1. Input Voltage Range: Operates with an input voltage range from 5V to 28V, suitable for various solar panel or adapter outputs.
2. Synchronous Buck Converter: Provides high efficiency with a synchronous buck topology that minimizes power loss.
3. MPPT (Maximum Power Point Tracking): Implements a built-in MPPT feature for optimizing power extraction from solar panels.
4. Battery Compatibility: Supports lithium-ion, lithium-polymer, LiFePO4, and lead-acid batteries, offering flexible usage with different battery types.
5. Charge Current Regulation: Allows adjustable charge current set via an external resistor, enabling customization according to battery specifications.
6. Safety Features: Includes comprehensive protection features such as overvoltage protection, overcurrent protection, and thermal shutdown for device and battery safety.
7. Status Indication: Provides charge status and fault indication outputs for easy monitoring and diagnostics.
8. Package Type: Available in a compact 4mm x 4mm VQFN package, facilitating space-saving designs.
These features make the BQ24640RVAR ideal for solar charging applications needing efficient and reliable battery management.
1. Input Voltage Range: Operates with an input voltage range from 5V to 28V, suitable for various solar panel or adapter outputs.
2. Synchronous Buck Converter: Provides high efficiency with a synchronous buck topology that minimizes power loss.
3. MPPT (Maximum Power Point Tracking): Implements a built-in MPPT feature for optimizing power extraction from solar panels.
4. Battery Compatibility: Supports lithium-ion, lithium-polymer, LiFePO4, and lead-acid batteries, offering flexible usage with different battery types.
5. Charge Current Regulation: Allows adjustable charge current set via an external resistor, enabling customization according to battery specifications.
6. Safety Features: Includes comprehensive protection features such as overvoltage protection, overcurrent protection, and thermal shutdown for device and battery safety.
7. Status Indication: Provides charge status and fault indication outputs for easy monitoring and diagnostics.
8. Package Type: Available in a compact 4mm x 4mm VQFN package, facilitating space-saving designs.
These features make the BQ24640RVAR ideal for solar charging applications needing efficient and reliable battery management.
Pinout
The BQ24640RVAR is a 20-pin IC designed by Texas Instruments for battery charge management. It is part of the BQ24640 series and primarily functions as a standalone synchronous switch-mode battery charge controller for charging lithium-based batteries, such as Li-Ion or Li-Polymer, in solar charging applications.
Key functions include regulated voltage and current charging, battery preconditioning, charge termination, and power path management. It supports solar power inputs, making it suitable for renewable energy applications. The device adjusts its charging parameters to optimize battery charging efficiency and safety.
For more detailed information regarding pin functions or electrical characteristics, referring to the datasheet is recommended.
Key functions include regulated voltage and current charging, battery preconditioning, charge termination, and power path management. It supports solar power inputs, making it suitable for renewable energy applications. The device adjusts its charging parameters to optimize battery charging efficiency and safety.
For more detailed information regarding pin functions or electrical characteristics, referring to the datasheet is recommended.
Manufacturer
The BQ24640RVAR is manufactured by Texas Instruments Incorporated (TI). Texas Instruments is an American technology company that designs and manufactures semiconductors and various integrated circuits. The company is one of the largest and most well-known semiconductor manufacturers in the world, and its products are widely used in electronics across various industries, including automotive, industrial, personal electronics, and communications equipment. TI is recognized for its innovation in analog and embedded processing technologies, providing solutions that enable advanced electronics and are essential in shaping modern technological advancements.
Application
The BQ24640RVAR is a highly efficient standalone battery charger controller designed for solar power applications. It is often used in charging systems for Li-ion, Li-polymer, and LiFePO4 batteries. Typical application areas include portable solar charging stations, solar-powered lighting systems, and renewable energy storage solutions. It supports Maximum Power Point Tracking (MPPT), making it suitable for optimizing solar panel output. Additionally, it can be found in off-grid applications, such as remote sensors and communication devices, where efficient solar charging is crucial. Its versatility in handling different battery chemistries also makes it a good choice for custom battery management systems in various green energy applications.
Package
The BQ24640RVAR is packaged in a VQFN (Very Thin Quad Flat No-Lead) package with 24 pins. This type of package is also known by the Texas Instruments code "RVA," which denotes its specific physical layout and dimensions.
