High-Accuracy, Hall-Effect-Based Current Sensor ICACS724KMAwith Common-Mode Field Rejection in High-Isolation SOIC16 PackagexKMATR-30AB PERFORMANCE CHARACTERISTICS: TA Range K, valid at TA = – 40°C to 125°C, VCC = 5 V, unless oth-erwise specifiedCharacteristicSymbolTest ConditionsMin.Typ.[1]Max.UnitsNOMINAL PERFORMANCE Current Sensing Range IPR –30 – 30 A Sensitivity Sens IPR(min) < IP < IPR(max) – 66 – 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 ±0.8 2.5 % TOT IP = IPR(max), TA = –40°C to 25°C – ±2.7 – % 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 ±0.7 2 % SENS TA = –40°C to 25°C, measured at IP = IPR(max) – ±2.6 – % I Offset Voltage V P = 0 A, TA = 25°C to 125°C –15 ±7 15 mV OE IP = 0 A, TA = –40°C to 25°C – ±15 – 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. 8 Allegro MicroSystems 955 Perimeter Road Manchester, NH 03103-3353 U.S.A. www.allegromicro.com