Datasheet ACS714 (Allegro) - 9

Automotive Grade, Fully Integrated, Hall-Effect-Based Linear Current Sensor IC ACS714 with 2.1 kVRMS Voltage Isolation and Low-Resistance Current Conductor x50A PERFORMANCE CHARACTERISTICS
over Range L: TA = –40°C to 150°C1, CF = 1 nF, and VCC = 5 V, unless otherwise specified
Characteristic Symbol Test Conditions Min. Typ. Max. Units
Optimized Accuracy Range IP –50 – 50 A Over full range of I Sensitivity Sens P, TA = 25°C – 40 – mV/A Over full range of IP, TA = –40°C to 150°C 37.5 – 42.5 mV/A Noise V Peak-to-peak, TA = 25°C, 40 mV/A programmed Sensitivity, NOISE(PP) CF = 47 nF, COUT = open, 2 kHz bandwidth – 4.5 – mV T Zero Current Output Slope ∆V A = –40°C to 25°C – –0.35 – mV/°C OUT(Q) TA = 25°C to 150°C – –0.08 – mV/°C T Sensitivity Slope ∆Sens A = –40°C to 25°C – 0.007 – mV/A/°C TA = 25°C to 150°C – –0.002 – mV/A/°C Electrical Output Voltage VOE IP = 0 A, TA = 25°C –40 – 40 mV I Total Output Error2 E P = ±40 A , TA = 25°C – ±1.5 – % TOT IP = ±40 A , TA = –40°C to 150°C – ±6 – % 1Device may be operated at higher primary current levels, IP, and ambient temperatures, TA, provided that the Maximum Junction Temperature, TJ(max), is not exceeded. 2Percentage of IP, with IP = 40 A. Output filtered. 8 Allegro MicroSystems 955 Perimeter Road Manchester, NH 03103-3353 U.S.A. www.allegromicro.com