Datasheet ACS724 (Allegro) - 6

Automotive-Grade, Galvanically Isolated Current Sensor IC ACS724 with Common-Mode Field Rejection in a Small-Footprint SOIC8 Package xLLCTR-2P5AB PERFORMANCE CHARACTERISTICS: TA Range L, valid at TA = – 40°C to 150°C, VCC = 5 V, unless otherwise specified Characteristic Symbol Test Conditions Min. Typ.[1] Max. Unit NOMINAL PERFORMANCE
Current Sensing Range IPR –2.5 – 2.5 A Sensitivity Sens IPR(min) < IP < IPR(max) – 800 – 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 150°C –2.5 ±1.5 2.5 % TOT IP = IPR(max), TA = –40°C to 25°C –6.5 ±4.5 6.5 %
TOTAL OUTPUT ERROR COMPONENTS [3] ETOT = ESENS + 100 × VOE/(Sens × IP)
I Sensitivity Error E P = IPR(max), TA = 25°C to 150°C –2 ±1 2 % sens IP = IPR(max), TA = –40°C to 25°C –6 ±4.5 6 % I Offset Voltage V P = 0 A, TA = 25°C to 150°C –20 ±7 20 mV OE IP = 0 A, TA = –40°C to 25°C –40 ±13 40 mV
LIFETIME DRIFT CHARACTERISTICS
Sensitivity Error Lifetime Drift Esens_drift –3 ±1 3 % Total Output Error Lifetime Drift Etot_drift –3 ±1 3 % [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