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News
Allegro MicroSystems, LLC Introduces New Differential High Accuracy, High Isolation Current Sensor IC With Dual Fault User Settable Over-Current Fault Outputs
2017-08-15 | ReturnThe device has dual fault functions that are user configurable. Fast and slow fault output allow for short-circuit and overcurrent fault detection. A user-created resistor divider from the power supply of the ACS720 is used to set the fault level. The fault outputs are open drain, allowing the user to pull them up to a compatible voltage for the MCU. The open-drain outputs also allow for implementing a simple logical OR of multiple sensor fault outputs.
The ACS720 also integrates differential current sensing, which rejects external magnetic fields, greatly simplifying board layout in three-phase motor applications. Near closed-loop accuracy is achieved in this open-loop sensor IC due to Allegro’s patented, digital temperature compensation, ultimately offering a smaller and more economical solution for many current sensing applications that traditionally rely on closed-loop core based sensors.
The ACS720 is provided in a small surface-mount SOIC16 package. The leadframe is plated with 100% matte tin, which is compatible with standard lead (Pb) free printed circuit board assembly processes. Internally, the device is Pb-free, except for flip-chip high-temperature Pb based solder balls, currently exempt from RoHS. The device is fully calibrated prior to shipment from the factory.
Source:http://www.allegromicro.com/