Fully Integrated, Hall Effect-Based Linear Current Sensor IC
with 3 kVRMS Voltage Isolation and a Low-Resistance Current Conductor
ACS756
X100 PERFORMANCE CHARACTERISTICS over Range S1: TOP = –20°C to 85°C, VCC= 5 V, unless otherwise specified
Characteristic
Symbol
Test Conditions
Min.
–100
–
Typ.
Max.
100
–
Units
A
Primary Sampled Current
IP
–
SensTA
Half scale of IP applied for 5 ms, TA = 25°C
20
–
mV/A
mV/A
mV
%
Sensitivity
Noise2
SensTOP Half scale of IP applied for 5 ms
18.2
–
21.8
–
VNOISE
ELIN(HT)
ELIN(LT)
VOE(TA)
TA= 25°C, 10 nF on VIOUT pin to GND
6
Up to full scale of IP, IP applied for 5 ms, TOP = 25°C to 85°C
Up to full scale of IP, IP applied for 5 ms, TOP = –20°C to 25°C
IP = 0 A, TA = 25°C
– 1.75
– 1
–
–
1.75
1
Nonlinearity
–
%
±2
–
–
mV
mV
mV
%
Electrical Offset Voltage3
Total Output Error4
VOE(TOP)HT IP = 0 A, TOP = 25°C to 85°C
–30
–30
–8
30
30
8
VOE(TOP)LT IP = 0 A, TOP = –20°C to 25°C
–
ETOT(HT) Over full scale of IP, IP applied for 5 ms, TOP = 25°C to 85°C
ETOT(LT) Over full scale of IP, IP applied for 5 ms, TOP = –20°C to 25°C
–
–7
–
7
%
1Device may be operated at higher primary current levels, IP, and ambient temperatures, TOP, provided that the Maximum Junction Temperature,
TJ(max), is not exceeded.
26σ noise voltage.
3VOE(TOP) drift is referred to ideal VOE = 2.5 V at 0 A.
4Percentage of IP, with IP = 25 A. Output filtered.
Allegro MicroSystems, Inc.
115 Northeast Cutoff
6
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
ALLEGRO [ ALLEGRO MICROSYSTEMS ]
