BV1HBx Automotive High Side Switches

ROHM Semiconductor BV1HBx Automotive High Side Switches integrate an overcurrent load protection and a dual temperature shutdown mechanism. This limits the internal thermal transients and reduces the mechanical stress of the ICs. The BV1HBx switches feature 4V low operating voltage (cranking) and a smart active-clamp circuit to dissipate the magnetic energy while switching off inductive loads. These switches also feature embedded current sense and diagnostic features. These provide real-time load current information and open or short circuit feedback in both the ON and OFF state. A 3V and 5V CMOS-compatible input pin offers direct microcontroller connection without special interfaces or level shifters. The BV1HBx high-side switches operate within the -40°C to 150°C temperature range. Typical applications include driver for resistive, inductive, and capacitive loads, MOSFET, relay, and fuse replacement, and intelligent power devices.