ACS37030/37032系列电流传感器

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.

Features

_High operating bandwidth for fast control loops or where high-speed switching currents are monitored:
_DC to 5MHz bandwidth
_40ns typical response time
_High accuracy and_low noise:
_±2%_sensitivity error over temperature
_±10mV maximum offset voltage over temperature
_50mARMS input referred noise
_3.3V non-ratiometric supply operation
_Differential sensing immune to external magnetic fields

_VREF output voltage for differential routing in noisy application environments (ACS37030)
_FAULT output for fast open drain overcurrent detection (ACS37032)
_Highly isolated compact surface-mount package:
_3500VRMS rated isolation voltage
_840VRMS / 1188VDC basic isolation voltages
_420VRMS / 594VDC reinforced isolation voltages
_–40°C to 150°C wide operating temperature
_AEC-Q100 qualified

Applications

_xEV On-board chargers
_xEV DC-DC

_Server power supply/data center power supplies
_Solar DC-DC