ACS714
Automotive Grade, Fully Integrated, Hall Effect-Based Linear Current Sensor IC
with 2.1 kVRMS Voltage Isolation and a 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
Sensitivity
Sens
Over full range of IP, TA = 25°C
Over full range of IP, TA = –40°C to 150°C
–
40
–
mV/A
37.5
–
42.5 mV/A
Noise
VNOISE(PP)
Peak-to-peak, TA = 25°C, 40 mV/A programmed Sensitivity,
CF = 47 nF, COUT = open, 2 kHz bandwidth
–
4.5
–
mV
Zero Current Output Slope
∆VOUT(Q)
TA = –40°C to 25°C
TA = 25°C to 150°C
–
–0.35
–
mV/°C
–
–0.08
–
mV/°C
Sensitivity Slope
∆Sens
TA = –40°C to 25°C
TA = 25°C to 150°C
–
0.007
– mV/A/°C
–
–0.002
– mV/A/°C
Electrical Output Voltage
VOE
IP = 0 A, TA = 25°C
–40
–
40
mV
Total Output Error2
ETOT
IP = ±40 A , TA = 25°C
IP = ±40 A , TA = –40°C to 150°C
–
±1.5
–
%
–
±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.
Allegro MicroSystems, LLC
8
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