ROHM Claims First Intelligent Power Devices Enabling Standalone System Protection

February 18, 2020 Alix Paultre

ROHM announced the availability of the BV2Hx045EFU-C, a family of high-voltage (41V) dual-channel high-side switch optimized for automotive ECUs in transmission control, engine control, and other vehicle systems. Unlike conventional fuses, IPD as semiconductor fuses can protect circuits without degrading or breaking down, making it possible to achieve maintenance-free systems.

BV2Hx045EFU-C devices are presented as the industry’s first high-side IPDs capable of providing standalone protection against overcurrent, by incorporating an original overcurrent protection function. The series can protect the system against both inrush and steady state overcurrent, and the overcurrent protection range can be adjusted with external components.

A BV2Hx045EFU-C device provides standalone protection from both inrush and steady state overcurrent, and an error signal can be sent to the MCU when an abnormality has been detected. The series enables adjustment of the inrush protection time and abnormal current threshold of the steady state current by simply changing the external capacitor and resistor constants.

The BV2Hx045EFU-C family is equipped with a protection function that delivers standalone overcurrent protection for the entire system, making it possible to eliminate up to 7 external parts compared to conventional solutions, decreasing mounting area by as much as 70%. Since semiconductor switches do not generate sound during switching, they can be used for a wide variety of relay applications.

www.rohm.com/eu

 
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