Ultra-high efficiency BMS evaluation board for compact IoT devices

02-02-2022 | ROHM Semiconductor | Power

ROHM offers the new REFLVBMS001-EVK-001 evaluation board. It enables the verification of ultra-efficient battery management solutions (BMS) for the expanding IoT field.


With the proliferation of battery-driven electronic devices, these devices need to be made smaller and thinner to improve design and functionality and support larger battery capacities and lower power consumption to enhance usability and convenience.


In response, the company has created an assortment of low consumption analog ICs, including power supply ICs that include original Nano Energy ultra-low current technology and charge control ICs compatible with a broad range of rechargeable batteries. Delivering optimised power solutions to meet market challenges allows it to contribute to the long-term operation of battery-powered applications. The newly released evaluation board offers an ultra-high efficiency battery management solution for thin, compact IoT devices by combining these technologies.


The board is furnished with a power supply IC (buck DC-DC converter IC) and reset IC (voltage detector IC) utilising original Nano Energy ultra-low current consumption technology. Also, it comprises a battery charger IC that supports low voltage rechargeable batteries, together with the NGK INSULATORS’s thin, large capacity EnerCera li-ion rechargeable battery. The ultra-low current consumption of the power supply IC (quiescent current 180nA) minimises loss.


The battery charger IC is ideal for a wide range of charge voltages; it can charge, monitor, and discharge batteries, making it ideal for compact IoT devices. The result is a low profile, ultra-efficient battery management solution achieving a thickness of only 0.6mm for mounted components (including the thin rechargeable battery).

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