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ACS722KMA Datasheet(PDF) 6 Page - Allegro MicroSystems |
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ACS722KMA Datasheet(HTML) 6 Page - Allegro MicroSystems |
6 / 17 page High Accuracy, Hall-effect Based Current Sensor IC in High Isolation SOIC16 Package ACS722KMA 6 Allegro MicroSystems, LLC 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com xKMATR-10AB PERFORMANCE CHARACTERISTICS : TA Range K, valid at TA = – 40°C to 125°C, VCC = 3.3 V, unless otherwise specified Characteristic Symbol Test Conditions Min. Typ.1 Max. Units Nominal Performance Current Sensing Range IPR –10 – 10 A Sensitivity Sens IPR(min) < IP < IPR(max) – 132 – mV/A Zero Current Output Voltage VIOUT(Q) Bidirectional; IP = 0 A – VCC x 0.5 – V Accuracy Performance Total Output Error2 ETOT IP = IPR(max), TA = 25°C to 125°C –2.5 ±1.7 2.5 % IP = IPR(max), TA = –40°C to 25°C – ±2.5 – % Total Output Error Components 3: ETOT = ESENS + 100 × VOE/(Sens × IP) Sensitivity Error ESENS TA = 25°C to 125°C; measured at IP = IPR(max) –2 ±1.5 2 % TA = –40°C to 25°C; ; measured at IP = IPR(max) – ±2.3 – % Offset Voltage4 VOE IP = 0 A; TA = 25°C to 125°C –15 ±7 15 mV IP = 0 A; TA = -40°C to 25°C – ±20 – mV Lifetime Drift Characteristics Sensitivity Error Lifetime Drift Esens_drift – ±1 – % Total Output Error Lifetime Drift Etot_drift – ±1 – % 1 Typical values with +/- are 3 sigma values. 2 Percentage of IP, with IP = IPR(max) 3 A single part will not have both the maximum/minimum sensitivity error and maximum/minimum offset voltage, as that would violate the maximum/minimum total output error specification. Also, 3 sigma distribution values are combined by taking the square root of the sum of the squares. See Application Information section. 4 Offset Voltage does not incorporate any error due to external magnetic fields. See section: Impact of External Magnetic Fields. |
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