Datasheet ACS756xCB (Allegro) - 4

Fully Integrated, Hall-Effect-Based Linear Current Sensor IC ACS756xCB with 3 kVRMS Voltage Isolation and a Low-Resistance Current Conductor COMMON OPERATING CHARACTERISTICS [1]: Over full range of TOP and VCC = 5 V, unless otherwise specified Characteristic Symbol Test Conditions Min. Typ. Max. Units
Supply Voltage [2] VCC 3 5.0 5.5 V Supply Current ICC VCC = 5.0 V, output open – 10 14 mA Power On Time tPO TA = 25°C – 35 – µs Rise Time tr IP = three-quarter scale of IP+, TA = 25°C, COUT = 0.47 nF – 3 – µs Internal Bandwidth [3] BWi –3 dB; IP is 10 A peak-to-peak; 100 pF from VIOUT to GND – 120 – kHz Output Load Resistance RLOAD(MIN) VIOUT to GND 4.7 – – kΩ Output Load Capacitance CLOAD(MAX) VIOUT to GND – – 10 nF Primary Conductor Resistance RPRIMARY TA = 25°C – 100 – µΩ Symmetry ESYM Over half-scale of Ip 98.5 100 101.5 % Bidirectional 0 A Output VOUT(QBI) IP = 0 A, TA = 25°C – VCC / 2 – V Magnetic Offset Error IERROM IP = 0 A, after excursion of 100 A – ±0.20 – A Ratiometry VRAT VCC = 4.5 to 5.5 V – 100 – % Propagation Time tPROP TA = 25°C, COUT = 100 pF, – 1 – µs [1] Device is factory-trimmed at 5 V, for optimal accuracy. [2] Devices are programmed for maximum accuracy at 5.0 V VCC levels. The device contains ratiometry circuits that accurately alter the 0 A Output Voltage and Sensitivity level of the device in proportion to the applied VCC level. However, as a result of minor nonlinearities in the ratiometry circuit additional output error will result when VCC varies from the 5 V VCC level. Customers that plan to operate the device from a 3.3 V regulated supply should contact their local Allegro sales representative regarding expected device accuracy levels under these bias conditions. [3] Guaranteed by design. 4 Allegro MicroSystems 955 Perimeter Road Manchester, NH 03103-3353 U.S.A. www.allegromicro.com