NXP Improves Battery Health Monitoring with EIS Capable Battery Management Chipset
NXP (NASDAQ: NXPI) announced an industry-first BMS chipset that embeds Electrochemical Impedance Spectroscopy (EIS) with hardware-based nanosecond synchronization across all battery cell measurements in a single high-voltage pack. The solution integrates EIS into three BMS devices (BMA7418 cell sensing, BMA6402 gateway, BMA8420 junction box) and includes an excitation signal generator and in-chip discrete Fourier transform.
The chipset aims to bring lab-grade diagnostics into vehicles, improve fast-charging safety, reduce extra sensors and system complexity, and will be available by the beginning of 2026 with enablement software on NXP’s S32K358 microcontroller.
NXP (NASDAQ: NXPI) ha annunciato un chipset BMS di portata industriale che integra la Elettrochemical Impedance Spectroscopy (EIS) con sincronizzazione a livello hardware di nanosecondi su tutte le misurazioni delle celle della batteria in un pacco ad alta tensione singolo. La soluzione integra l'EIS in tre dispositivi BMS (sensori di celle BMA7418, gateway BMA6402, box di giunzione BMA8420) e include un generatore di segnale di eccitazione e una trasformata discreta in-chip. Il chipset mira a portare diagnosi di livello da laboratorio nei veicoli, migliorare la sicurezza della ricarica rapida, ridurre sensori extra e la complessità del sistema, e sarà disponibile entro l'inizio del 2026 con software di abilitazione sul microcontrollore S32K358 di NXP.
NXP (NASDAQ: NXPI) anunció un chipset BMS líder en la industria que integra la Espectroscopía de Impedancia Electroquímica (EIS) con sincronización en nanosegundos basada en hardware para todas las mediciones de las celdas de la batería en un único pack de alta tensión. La solución integra la EIS en tres dispositivos BMS (sensor de celdas BMA7418, gateway BMA6402, caja de empalme BMA8420) e incluye un generador de señal de excitación y una transformada discreta en-chip. El chipset tiene como objetivo llevar diagnósticos de nivel de laboratorio a los vehículos, mejorar la seguridad de la carga rápida, reducir sensores extra y la complejidad del sistema, y estará disponible a principios de 2026 con software de habilitación en el microcontrolador S32K358 de NXP.
NXP(NASDAQ: NXPI)가 업계 최초의 BMS 칩셋을 발표했습니다. 이 칩셋은 전기화학 임피던스 분광법(EIS)을 하드웨어 기반 나노초 동기화로 모든 배터리 셀의 측정을 단일 고전압 팩에서 수행합니다. 이 솔루션은 EIS를 세 개의 BMS 디바이스(BMA7418 셀 센싱, BMA6402 게이트웨이, BMA8420 접합 박스)에 통합하고, 구동 신호 발생기와 칩 내 이산 퓨리에 변환을 포함합니다.
칩셋은 실험실 등급의 진단을 차량에 도입하고, 급속 충전의 안전성을 개선하며, 불필요한 센서와 시스템 복잡성을 줄이고, NXP의 S32K358 마이크로컨트롤러에 대한 활성화 소프트웨어와 함께 2026년 초에 제공될 예정입니다.
NXP (NASDAQ: NXPI) a annoncé un chipset BMS inédit dans l'industrie qui intègre la spectroscopie d'impédance électrochimique (EIS) avec une synchronisation matérielle nanoseconde sur toutes les mesures des cellules de la batterie dans un pack haute tension unique. La solution intègre l'EIS dans trois dispositifs BMS (capteur de cellules BMA7418, passerelle BMA6402, boîtier de jonction BMA8420) et comprend un générateur de signal d'excitation et une transformée de Fourier discrète intégrée. Le chipset vise à apporter des diagnostics de laboratoire dans les véhicules, améliorer la sécurité de la charge rapide, réduire les capteurs supplémentaires et la complexité du système, et sera disponible au début de 2026 avec un logiciel de mise en service sur le microcontrôleur S32K358 de NXP.
NXP (NASDAQ: NXPI) kündigte einen branchenweit ersten BMS-Chipsatz an, der die Elektrochemische Impedanzspektroskopie (EIS) mit hardwarebasierter Nanosekunden-Synchronisation über alle Messungen von Batteriezellen in einem einzigen Hochspannungs-Paket integriert. Die Lösung integriert EIS in drei BMS-Geräten (BMA7418 Zellensensorik, BMA6402 Gateway, BMA8420 Verbindungsdose) und umfasst einen Anregungssignal-Generator und eine integrierte diskrete Fourier-Transformation. Der Chipsatz zielt darauf ab, Labordiagnostik in Fahrzeuge zu bringen, die Sicherheit des Schnellladens zu verbessern, zusätzliche Sensoren und Systemkomplexität zu reduzieren und wird zu Beginn von 2026 mit Enablement-Software auf dem NXP-S32K358-Mikrocontroller verfügbar sein.
NXP (بورصة ناسداك: NXPI) أعلنت عن رقاقة BMS رائدة في الصناعة تدمج التحليل الطيفي للممانعة الكهروكيميائية (EIS) مع تزامن قطعي عند مستوى العتاد عبر جميع قياسات خلية البطارية في حزمة عالية الجهد واحدة. تدمج الحلول EIS في ثلاثة أجهزة BMS (استشعار خلية BMA7418، بوابة BMA6402، صندوق تقاطع BMA8420) وتشمل مولد إشارة الإثارة وتحويل فورييه الرقمي المدمج. تهدف مجموعة الشرائح إلى جلب تشخيصات بمستوى المعامل المخبرية إلى المركبات، تحسين أمان الشحن السريع، تقليل المستشعرات الإضافية وتعقيد النظام، وستكون متاحة بحلول بداية 2026 مع برنامج تمكين على ميكروكونترولر S32K358 من NXP.
NXP（纳斯达克股票代码：NXPI）宣布行业首创的 BMS 芯片组，在单一高压包中将 电化学阻抗谱（EIS） 与硬件级纳秒级同步集成到对所有电池单体的测量中。该方案将 EIS 集成到三个 BMS 设备中（BMA7418 单体传感、BMA6402 网关、BMA8420 汇接盒），并包含激励信号发生器以及片内离散傅立叶变换。该芯片组目标是把实验室级诊断带入车辆，提升快速充电的安全性，减少额外传感器和系统复杂性，并将在 2026 年初通过 NXP 的 S32K358 微控制器提供使能软件。
- Built-in EIS with nanosecond synchronization across cells
- Integrates into three BMS units: BMA7418, BMA6402, BMA8420
- In-chip discrete Fourier transform for real-time impedance analysis
- Expected availability by the beginning of 2026 with S32K358 support
- Requires OEM integration work and software enablement on S32K358
Insights
NXP’s integrated EIS BMS chipset brings lab-grade cell diagnostics into production EV packs, likely improving monitoring and fast-charging management.
The chipset embeds Electrochemical Impedance Spectroscopy into three BMS devices (BMA7418, BMA6402, BMA8420) and uses nanosecond-level hardware synchronization plus in-chip discrete Fourier transform to produce per-cell impedance data without extra sensors or major redesigns. This directly converts a laboratory diagnostic (EIS) into a real-time in-vehicle capability, enabling detection of temperature gradients, aging signatures, and micro short indicators while the pack is in dynamic use.
Key dependencies and risks include system integration with OEM battery architectures, validation of measurement robustness across temperature and load states, and software enablement on NXP’s S32K358 microcontroller; the release is expected by
- NXP unveils industry-first, battery management system (BMS) chipset with built-in Electrochemical Impedance Spectroscopy (EIS) using precise hardware-based synchronization of all battery cell measurements within a single high-voltage battery pack
- Brings lab-grade diagnostics into vehicles, enhancing battery health insights and expanding NXP’s electrification portfolio with advanced monitoring capabilities
- Simplified and cost-efficient battery cell monitoring allows automakers track battery health, improve electric vehicle (EV) safety, and support fast charging
EINDHOVEN, The Netherlands, Oct. 29, 2025 (GLOBE NEWSWIRE) -- NXP Semiconductors N.V. (NASDAQ: NXPI) today announced its industry-first Electrochemical Impedance Spectroscopy (EIS) battery management chipset with hardware-based nanosecond-level synchronization of all devices. The new system solution is designed to enhance safety, longevity, and performance in electric vehicles and energy storage systems. It integrates EIS measurement directly into three battery management system (BMS) chipset units, enabling carmakers to gain deeper insights into battery health and behavior.
OEMs today face increasing pressure to deliver safe and faster charging, longer battery life, and safer battery energy storage systems - all while keeping costs and design complexity in check. Traditional, software-based battery monitoring methods often struggle to precisely detect dynamic, millisecond level events that serve as early indicators of failure. To ensure safe and fast charging, these systems frequently require additional sensors and software.
NXP’s new chipset tackles these challenges by embedding EIS directly into the hardware, consisting of three BMS units: the BMA7418 cell sensing device, the BMA6402 gateway, and the BMA8420 battery junction box controller. It enables real-time, high-frequency monitoring without the need for extra components or costly redesigns. The hardware-based solution operates in highly precise synchronization to deliver highly accurate impedance measurements with directly in-chip integrated discrete Fourier transformation, helping OEMs better manage safe and fast charging, detect early signs of battery failure, and reduce system complexity.
“The EIS solution brings a powerful lab-grade diagnostic tool into the vehicle. It simplifies system design by reducing the need for additional temperature sensors and supports the shift toward faster, safer and more reliable charging without compromising battery health,” said Naomi Smit, VP and GM, Drivers and Energy System at NXP. “The chipset also offers a low-barrier upgrade path, with pin-to-pin compatible packages that can be directly upgraded to on cell module and battery junction box control units.”
The technology of Electrochemical Impedance Spectroscopy is based on sending controlled electrical excitation signals through the entire battery. NXP’s system solution includes an electrical excitation signal generator, which both pre-charges the high-voltage circuit and produces the excitation signal. This setup allows the DC link capacitors to act as a secondary energy storage—alongside the battery—making the excitation process more energy efficient.
By measuring how the cells respond across different frequencies to the current excitation, the responses reveal subtle changes in the cell’s internal condition, such as temperature gradients, aging effects, or micro short circuits. Unlike traditional time-based measurements, EIS provides a fast and reliable way to assess the impedance of each cell and distinguish from capacity fade, to estimate battery health even during dynamic conditions like charging or load shifts.
The complete solution is expected to be available by the beginning of 2026, with enablement software running on NXP’s S32K358 automotive microcontroller.
NXP’s Electrification Solutions
NXP’s Electrification solutions manage the flow of energy across the electrified ecosystem including electric vehicles, homes and buildings, and smart grids. In EVs, flexibility and precision enable our customers to extend driving range and keep vehicles on the road longer. With complete system solutions for EVs, including battery cell controllers, battery junction box, communication gateway and microcontroller, NXP’s electrification solutions deliver the optimized performance and integrated safety that OEMs need. For more information, please visit nxp.com/electrification.
About NXP Semiconductors
NXP Semiconductors N.V. (NASDAQ: NXPI) is the trusted partner for innovative solutions in the automotive, industrial & IoT, mobile, and communications infrastructure markets. NXP's "Brighter Together" approach combines leading-edge technology with pioneering people to develop system solutions that make the connected world better, safer, and more secure. The company has operations in more than 30 countries and posted revenue of
NXP and the NXP logo are trademarks of NXP B.V. All other product or service names are the property of their respective owners. All rights reserved. © 2025 NXP B.V
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| Email:andrea.lempart@nxp.com | Email:ming.yue@nxp.com |
A photo accompanying this announcement is available at https://www.globenewswire.com/NewsRoom/AttachmentNg/a5986320-2cb6-4d8a-a947-aaa98b5cdb1d
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FAQ
What did NXP announce on October 29, 2025 about NXPI battery technology?
Which NXPI devices include the new EIS capability and what are their names?
When will NXP’s EIS-capable BMS chipset (NXPI) be available for OEMs?
How does NXP say the NXPI chipset improves EV charging safety and battery life?
What software platform does NXP plan to use to enable the new NXPI chipset?
Does the NXPI EIS solution require extra hardware or redesigns for existing packs?
