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Nuvoton publica un plan para lanzar la producción en masa de nuevos BM-IC industriales
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News provided by

Nuvoton Technology Corporation Japan

Feb 24, 2025, 20:56 ET

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KIOTO, Japón, 25 de febrero de 2025 /PRNewswire/ -- Nuvoton Technology Corporation Japan (NTCJ) ha desarrollado los nuevos circuitos integrados BM-IC de 17 celdas "KA49701A" y "KA49702A" para baterías de 48 V. La producción en masa comenzará a partir de abril de 2025. Estos productos mejoran la seguridad de los sistemas de baterías y garantizan una construcción sencilla y segura del sistema.

Imagen: https://cdn.kyodonewsprwire.jp/prwfile/release/M108245/202502124110/_prw_PI1fl_tJjts0mQ.png 

1.  Los circuitos integrados de monitorización de la batería desempeñan un papel importante para garantizar que el sistema funcione de forma segura durante anomalías como la sobrecarga o la descarga excesiva de la batería. Sin embargo, si fallan los circuitos principales que realizan las mediciones de voltaje de las celdas, como el convertidor AD o el multiplexor del BM-IC, es necesario garantizar la seguridad del sistema con circuitos de protección externos, pero esto aumenta el área de la placa y el coste del sistema. Los principales circuitos internos de este producto están equipados con funciones de diagnóstico y de seguridad. Esta función de diagnóstico puede detectar fallas en el circuito principal y controlar el interruptor de corte, logrando una mayor seguridad del BMS y un menor coste del sistema.

Figura (inglés): https://cdn.kyodonewsprwire.jp/prwfile/release/M108245/202502124110/_prw_PI2fl_4z4nlNQ9.png 

Figura (chino simplificado): https://cdn.kyodonewsprwire.jp/prwfile/release/M108245/202502124110/_prw_PI3fl_EmXC0o1F.png 

Figura (chino tradicional): https://cdn.kyodonewsprwire.jp/prwfile/release/M108245/202502124110/_prw_PI4fl_ins2617Q.png 

2. Al reducir los niveles de ruido en el convertidor AD de 16 bits e incorporar un filtro digital, NTCJ ha logrado una precisión de medición de voltaje líder en la industria de +/-2,9 mV (*1). Al mejorar la precisión de la medición de voltaje, se puede utilizar la capacidad máxima de la batería. Además, se ha logrado una medición de voltaje precisa en un amplio rango de temperaturas. También es adecuado para aplicaciones que requieren una alta precisión de medición de voltaje en entornos fríos y calientes, como sistemas de baterías estacionarias que cumplen con la norma nacional china pertinente (*2).

(*1) Según una encuesta realizada por Nuvoton en el campo de BM-IC a febrero de 2025.    

(*2) GB/T34131-2023, dentro del sistema +/-5 mV a -20 °C a 65 °C.

3. Al acortar el tiempo de medición de voltaje de la celda, que tiene un alto consumo de energía, se ha logrado una corriente de operación de 260 microamperios, menos de 1/10 de los estándares anteriores de NTCJ. Esto permite tiempos de funcionamiento de batería más largos. Además, la optimización del diseño del circuito ha reducido el consumo de corriente de apagado a 0,1 microamperios o menos. Al usar el CI de NTCJ, se puede minimizar la autodescarga, lo que evita el deterioro debido a la sobredescarga cuando las baterías de ion de litio se transportan a largas distancias y se almacenan a largo plazo.

Para obtener más detalles sobre el producto, visite: https://www.nuvoton.com/products/battery-management/battery-monitoring-ics/non-stackable/ 

Acerca de Nuvoton Technology Corporation Japan: https://www.nuvoton.co.jp/en/ 

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