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ACS780XLR Datasheet(PDF) 17 Page - Allegro MicroSystems |
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ACS780XLR Datasheet(HTML) 17 Page - Allegro MicroSystems |
17 / 24 page ![]() High-Precision Linear Hall-Effect-Based Current Sensor IC With 200 µΩ Current Conductor ACS780xLR 17 Allegro MicroSystems, LLC 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com POWER-ON RESET RELEASE TIME (tPORR) When VCC rises to VPORH,thePower-OnResetCounterstarts. The sensor output voltage will transition from a high-impedance statetonormaloperationonlywhenthePower-OnResetCounter has reached tPORR and VCC has exceeded VUVLOH. UNDERVOLTAGE LOCKOUT THRESHOLD (VUVLO ) If VCC drops below VUVLOL, output voltage will be locked to GND.IfVCC starts rising, the sensor will come out of the locked state when VCC reaches VUVLOH. UVLO ENABLE/DISABLE RELEASE TIME (tUVLO) When a falling VCC reaches VUVLOL, time tUVLOE is required toengageUndervoltageLockoutstate.WhenVCC rises above VUVLOH, time tUVLODisrequiredtodisableUVLOandhavea valid output voltage. Increasing VIOUT(V) +IP (A) Accuracy Accuracy Accuracy 25°C Only Accuracy 25°C Only Accuracy 25°C Only Accuracy 0 A v r O e ∆Temp erature Average VIOUT –IP (A) v r O e ∆Temp erature v r O e ∆Temp erature Decreasing VIOUT(V) IP(min) IP(max) Half Scale Output Voltage versus Sampled Current Total Output Error at 0 A and at Full-Scale Current |
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