Datasheet ACS724KMA (Allegro) - 6

High-Accuracy, Hall-Effect-Based Current Sensor IC ACS724KMA with Common-Mode Field Rejection in High-Isolation SOIC16 Package xKMATR-12AB PERFORMANCE CHARACTERISTICS: TA Range K, valid at TA = – 40°C to 125°C, VCC = 5 V, unless oth- erwise specified Characteristic Symbol Test Conditions Min. Typ. [1] Max. Units NOMINAL PERFORMANCE
Current Sensing Range IPR –12 – 12 A Sensitivity Sens IPR(min) < IP < IPR(max) – 166 – mV/A Zero Current Output Voltage VIOUT(Q) Bidirectional; IP = 0 A – VCC × 0.5 – V
ACCURACY PERFORMANCE
I Total Output Error [2] E P = IPR(max), TA = 25°C to 125°C –2.5 ±1 2.5 % TOT IP = IPR(max), TA = –40°C to 25°C – ±3 – %
TOTAL OUTPUT ERROR COMPONENTS [3]: ETOT = ESENS + 100 × VOE/(Sens × IP)
T Sensitivity Error E A = 25°C to 125°C, measured at IP = IPR(max) –2 ±1 2 % SENS TA = –40°C to 25°C, measured at IP = IPR(max) – ±2.8 – % I Offset Voltage V P = 0 A, TA = 25°C to 125°C –15 ±5 15 mV OE 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. 6 Allegro MicroSystems 955 Perimeter Road Manchester, NH 03103-3353 U.S.A. www.allegromicro.com