#Japan #Kyoto #BM-ICs #Nuvoton Technology #48V Batteries

Nuvoton Technology's Innovative BM-ICs for Battery Management

Nuvoton Technology Corporation Japan (NTCJ) has unveiled plans for the mass production of its new industrial battery management integrated circuits (BM-ICs), named "KA49701A" and "KA49702A". Set to commence in April 2025, these state-of-the-art products are designed specifically for use in 48-volt battery systems.

Enhancing Safety and Efficiency

The introduction of the KA49701A and KA49702A BM-ICs marks a significant advancement in battery safety and operational efficiency. These circuits are crucial in monitoring and ensuring the safe operation of battery systems, particularly during anomalies such as overcharging or deep discharge. Traditionally, the security of a battery management system (BMS) could be compromised if the main circuits, including the analog-to-digital converter (ADC) or multiplexer, failed. Nuvoton addresses this by integrating diagnostic and fail-safe functions within these new BM-ICs. This feature allows for real-time error detection within the main current path, promoting safer operations while simultaneously reducing system costs by minimizing reliance on external protective circuits that would otherwise increase both the footprint and expenses of circuit board designs.

Leading-Edge Voltage Measurement Accuracy

One of the standout features of the KA49701A and KA49702A is their remarkable voltage measurement accuracy. By enhancing the design of a 16-bit ADC and incorporating a digital filter, Nuvoton has achieved an industry-leading precision of +/- 2.9 mV. This level of accuracy ensures that users can optimize the total capacity of their battery systems effectively, especially in environments requiring stringent measurement regulations. The devices excel under a wide temperature range, making them particularly suited for stationary batteries compliant with national Chinese standards.

Low Power Consumption for Extended Lifespan

Power consumption has also been a prime consideration in the design of these BM-ICs. Nuvoton has successfully reduced the operating current to just 260 microamps, significantly below previous benchmarks. This substantial decrease allows for extended operational lifespan of batteries, which is ideal for applications demanding long-lasting performance. Additionally, the optimized circuit designs have minimized quiescent current to 0.1 microamps or less, which greatly reduces self-discharge, thus preventing cell deterioration during long-term storage or transportation.

Conclusion and Further Information

Nuvoton's innovation in the realm of battery management with the KA49701A and KA49702A BM-ICs signifies a pivotal development for industries reliant on efficient and safe battery systems. As mass production looms on the horizon, potential applications range from renewable energy storage systems to backup power supplies in industrial environments.

For further information about these cutting-edge products, visit Nuvoton's official website or learn more about Nuvoton Technology Corporation Japan at their corporate site.