Renesas Electronics Corporation introduced a new family of multi-cell full battery front end (BFE) ICs for battery management systems (BMS) built for the larger, high-voltage battery packs that power e-scooters, energy storage, high-voltage power tools, and other high-voltage equipment. The new ICs provide fast, flexible, cell balancing up to 200 mA+, a critical function to enable fast recharging and high utilization in large battery packs with hot plug tolerance up to 62V.
Designed for higher voltage mobility applications where larger cell count and temperature variance across cells are more likely to lead to cell-to-cell imbalances, the RAA489206 provides full high-side battery protection and monitoring for 4S to 16S cell battery packs. The RAA489204 provides improved daisy chain operation with accelerated device-to-device communication and enhanced diagnostics compared with previous-generation devices, as well as internal cell balancing options and support for the higher voltages and cell count required by UPS systems, grid backup, and other energy storage systems.
The new ICs’ high integration simplifies the design cycle and reduces customers’ system BOM costs significantly, accelerating design and BOM selection time from months to weeks.The ICs also feature extensive built-in self diagnostics, improving their safety functionality, reducing firmware workload, and easing the design burden for meeting safety standards. Pin-to-pin compatibility with Renesas’ previous BFE devices simplifies the design cycle even further, offering customers a quick and seamless migration path to the new BFE ICs.
Key Features of the RAA489206:
Key Features of the RAA489204:
The RAA489206 and RAA489204 ICs are optimal for robust Battery Management System (BMS) applications. Renesas has designed multiple system architectures using complementary power, analog, and microcontroller offerings to create comprehensive solutions for a variety of applications. This includes a new 20-28 Cell Battery Management System (up to 118V), providing a complete BMS system. Renesas’ Winning Combinations are vetted solutions engineered to help customers accelerate designs and get to market faster. Renesas offers more than 250 Winning Combinations with compatible devices for a wide range of applications and end products.
Pricing and Availability
Both the RAA489206 and RAA489204 ICs are available now. More details can be found here.