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Allegro MicroSystems ACS37030/37032 Current Sensors are galvanically isolated and fully integrated high-accuracy current sensor ICs in the LZ fused-lead SOIC-6 packages. These sensors incorporate high operating bandwidth (DC to 5MHz) for fast control loops or for monitoring high-speed switching currents with a typical 40ns response time. The ACS37030/37032 sensors employ two signal paths that are summed, enabling the sensing of a wide frequency band with a single device. One path involves a Hall-effect element to capture DC and low-frequency current information, while the other uses an inductive coil path to capture high-frequency current information. The internal construction achieves high isolation by magnetically coupling the field generated by current flow in the conductor to the fully monolithic Hall and coil IC.
The ACS37030 and ACS37032 current sensors ICs offer 3500VRMS isolation voltage between primary and secondary signal leads, with no physical connection to the integrated current conductor. These sensors are available in both zero current reference (ACS37030) and overcurrent fault with internal pull-up (ACS37032) options. The ACS37030/37032 sensors are ideal for sensing in fast control loops and power electronics utilizing fast switching frequencies. Typical applications include xEV onboard chargers, xEV DC-DC, solar DC-DC, server power supplies, and data center power supplies.
