Nuvoton Starts Sample-shipping of New Industrial BM-ICs

Nuvoton Starts Sample-shipping of New Industrial BM-ICs

Kyoto, Japan, June 24, 2024 - Nuvoton Technology Corporation Japan (NTCJ) has developed new industrial 17-cell BM-ICs “KA49701A” and “KA49702A” for 48V batteries. Sample-shipping starts from June 2024. These products enable battery-performance maximization and simple safe system construction.



  1. Voltage measurement accuracy +/-2.9mV, the highest standard in the industry*1), realizes the effective use of battery performance. The high-accuracy voltage measurement helps to meet system requirements including stationary Energy Storage System (ESS) manufactured to comply with China GB Standards (GB/T34131-2023).


  1. Self-diagnosis function is installed on main circuits such as AD Converter (ADC) and Multiplexer (MUX). This advanced Battery Monitoring ICs (BM-ICs) make it possible to detect latent failures inside of the chips, which contribute to your simple safe system construction without external circuits.


  1. Our specific lineup for Low-side and High-side Switch offers you an option to realize a cost-effective or a higher-safety system. Both products provide with the best solution for battery control in wide range of applications.


Nuvoton’s Industrial Battery Monitoring ICs implement high-resolution ADCs and precisely measure voltage, temperature, and current in a battery. Combination with a microcomputer permits the ICs to control cell balancing switches as well as battery charging and discharging current. You can realize simple battery system construction by installing our all-in-one ICs ― no switching elements or level-shifter circuits are needed any more.


Product details:



Energy Storage System (ESS), server, e-scooter, e-bike, robot, drone, etc.


Product name:

Industrial Battery Monitoring IC

KA49701A, KA49702A




Product number



Charging and discharging control method

Low-side Switch

High-side Switch

Maximum connectable cells


Maximum operating voltage


Voltage measurement accuracy

+/- 2.9mV

Current measurement accuracy

+/- 1.0%


QFP-48pin(7mm x 7mm)



*1) According to survey by Nuvoton in the industrial battery monitoring IC field as of June 24, 2024.


About Nuvoton Technology Corporation Japan (NTCJ)

Nuvoton Technology Corporation Japan (NTCJ) joined Nuvoton Group in 2020. As a dedicated global semiconductor manufacturer, NTCJ provides technology and various products cultivated over 60 years since its establishment, and solutions that optimally combine them. We value relationships with our customers and partners, and by providing added value that exceeds expectations, we are working as a global solution company that solves various issues in society, industry, and people's lives. For more information, please visit


Media contact:

Corporate Strategy Office, Nuvoton Technology Corporation Japan


Technical contact:

Marketing Department, Battery and Analog Solution Business Group, Nuvoton Technology Corporation Japan


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