Fluxgate-based battery current sensors for high-precision DC current measurement in high-voltage battery systems. Delivers accurate SOC, SOH, and SOF estimation with global accuracy of 0.5% (0.8% for CAB-SF 500-C) and offset below 50mA for reliable coulomb counting. Unipolar +12V supply; full galvanic isolation; contactless measurement with no insertion losses; low power consumption avoids added heat during fast-charging cycles. Programmable CAN features (ID, baud rate, frame period), over-current detection, and functional safety up to ASIL-C per ISO 26262:2018. Compatible with HV architectures up to 800V. The forthcoming CAB 1000 extends the series to commercial vehicle BMS with enhanced EMC immunity and 1500V system support.

Applications: xEV battery packs, battery disconnect units.