ACS750LCA-075_03 View Datasheet(PDF) - Allegro MicroSystems
Part Name
Description
MFG CO.
'ACS750LCA-075_03' PDF : 11 Pages View PDF
Current Sensor: ACS750xCA-075
Definitions of Dynamic Response Characteristics
Propagation delay: Propagation delay is the time that it takes for the sensor output to reflect a change in the
primary current signal. Propagation delay is attributed to inductive loading within the linear IC package as well
as the inductive loop formed by the primacy conductor geometry. Propagation delay can be considered as a
fixed time offset and may be compensated.
Response time: Response time is the time between when the primary current signal reaches 90% of its final
value and when the sensor reaches 90% of its output corresponding to the applied current.
Rise time: Rise time is the time between the sensor’s output reaching 10 and 90% of its full scale value. The
rise time to a step response is used to derive the bandwidth of the current sensor, in which ƒ(-3dB) = 0.35/tr.
Both rise time and response time are detrimentally affected by eddy current losses observed in the conductive
IC ground plane and, to varying degrees, in the ferrous flux concentrator within the current sensor package.
31Oct03, CMG, Rev 2.0
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Copyright © 2003, Allegro MicroSystems, Inc.
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