Datasheet

Automotive Grade, Fully Integrated, Hall Effect-Based Linear Current Sensor IC
with 2.1 kVRMS Voltage Isolation and a Low-Resistance Current Conductor
ACS714
5
Allegro MicroSystems, LLC
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 [phone]
www.allegromicro.com
x05B PERFORMANCE CHARACTERISTICS
1
over Range E: T
A
= –40°C to 85°C, C
F
= 1 nF, and V
CC
= 5 V, unless otherwise specified
Characteristic Symbol Test Conditions Min. Typ. Max. Units
Optimized Accuracy Range I
P
–5 – 5 A
Sensitivity Sens Over full range of I
P,
T
A
= 25°C 180 185 190 mV/A
Noise V
NOISE(PP)
Peak-to-peak, T
A
= 25°C, 185 mV/A programmed Sensitivity,
C
F
= 47 nF, C
OUT
= open, 2 kHz bandwidth
–21– mV
Zero Current Output Slope V
OUT(Q)
T
A
= –40°C to 25°C – –0.26 – mV/°C
T
A
= 25°C to 150°C – –0.08 – mV/°C
Sensitivity Slope Sens
T
A
= –40°C to 25°C – 0.054 – mV/A/°C
T
A
= 25°C to 150°C – –0.008 – mV/A/°C
Electrical Output Voltage V
OE
I
P
= 0 A –40 – 40 mV
Total Output Error
2
E
TOT
I
P
=±5 A, T
A
= 25°C – ±1.5 – %
1
Device may be operated at higher primary current levels, I
P
, and ambient temperatures, T
A
, provided that the Maximum Junction Temperature, T
J(max)
,
is not exceeded.
2
Percentage of I
P
, with I
P
= 5 A. Output filtered.
x05B PERFORMANCE CHARACTERISTICS
1
over Range L: T
A
= –40°C to 150°C, C
F
= 1 nF, and V
CC
= 5 V, unless otherwise specified
Characteristic Symbol Test Conditions Min. Typ. Max. Units
Optimized Accuracy Range I
P
–5 – 5 A
Sensitivity Sens Over full range of I
P,
T
A
= 25°C – 185 – mV/A
Noise V
NOISE(PP)
Peak-to-peak, T
A
= 25°C, 185 mV/A programmed Sensitivity,
C
F
= 47 nF, C
OUT
= open, 2 kHz bandwidth
–21– mV
Zero Current Output Slope V
OUT(Q)
T
A
= –40°C to 25°C – –0.26 – mV/°C
T
A
= 25°C to 150°C – –0.08 – mV/°C
Sensitivity Slope Sens
T
A
= –40°C to 25°C – 0.054 – mV/A/°C
T
A
= 25°C to 150°C – –0.008 – mV/A/°C
Electrical Output Voltage V
OE
I
P
= 0 A –60 – 60 mV
Total Output Error
2
E
TOT
I
P
=±5 A, T
A
= 25°C – ±1.5 – %
I
P
=±5 A, T
A
= –40°C to 150°C –7 – 7 %
1
Device may be operated at higher primary current levels, I
P
, and ambient temperatures, T
A
, provided that the Maximum Junction Temperature, T
J(max)
,
is not exceeded.
2
Percentage of I
P
, with I
P
= 5 A. Output filtered.