Texas Instruments BQ24640RVAR Charge Controller

The BQ24640RVAR is a highly integrated switch-mode battery charge controller designed by Texas Instruments to provide efficient, reliable charging for a variety of battery chemistries including lithium-ion, lithium-polymer, and lithium iron phosphate. It is also well-suited for lead-acid battery chemistries, making it a versatile choice for diverse applications.

Key Features

• High-Efficiency Synchronous Switching: The BQ24640RVAR boasts a synchronous switching MOSFET pair, which enhances efficiency, reduces heat dissipation, and allows for faster charging.
• Wide Input Voltage Range: This charge controller can handle a wide range of input voltages from 5V to 28V, accommodating various power sources and ensuring compatibility with different supply voltages.
• Maximum Charge Current: It is capable of delivering up to 10A of charge current, which can be programmed via an external resistor, making it suitable for high-capacity batteries.
• Integrated Battery Protection: The device includes multiple safety features such as over-voltage, over-current, and thermal protection to ensure the longevity and safety of both the battery and the system.
• Adjustable Voltage Regulation: The charging voltage is adjustable to accommodate different battery chemistries and specifications, ensuring optimal charging conditions.
• MPPT Capability: With Maximum Power Point Tracking (MPPT) capability, the BQ24640RVAR can extract the maximum amount of energy from solar panels or other variable power sources.

Applications

The BQ24640RVAR is suitable for a wide array of applications, including portable consumer electronics, power tools, garden tools, e-bikes, energy storage systems, and solar-powered devices. Its robust design and comprehensive feature set make it an ideal choice for any application requiring efficient and safe battery management.

Package and Availability

This charge controller is available in a compact VQFN (R-VQFN) package, which is designed for space-constrained applications. The BQ24640RVAR is part of Texas Instruments' extensive portfolio of battery management solutions and is readily available through various distributors and direct from Texas Instruments.