ACS712 Allegro MicroSystems, Inc., ACS712 Datasheet - Page 7

• Manufacturer Part Number: ACS712
• Description: Fully Integrated, Hall Effect-based Linear Current Sensor With 2.1 Kvrms Voltage Isolation And A Low-resistance Current Conductor
• Manufacturer: Allegro MicroSystems, Inc.

ACS712
Mean Total Output Error versus Ambient Temperature
Mean Supply Current versus Ambient Temperature
0 A Output Voltage versus Ambient Temperature
2525
2520
2515
2510
2505
2500
2495
2490
2485
–0.5
–1.0
–1.5
–2.0
–2.5
–3.0
–3.5
–4.0
–4.5
–5.0
9.7
9.6
9.5
9.4
9.3
9.2
9.1
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
Magnetic Offset versus Ambient Temperature
–2
–4
–6
–8
-50
-50
-50
8
6
4
2
0
0
0
–25 –20 –15 –10
–50
Output Voltage versus Sensed Current
-25
-25
-25
–25
V
After excursion to 20 A
CC
0
0
0
0
= 5 V; I
V
CC
= 5 V
25
25
25
25
V
–5
P
CC
= 0 A,
T
T
T
= 5 V
T
I
A
A
A
2.1 kVRMS Voltage Isolation and a Low-Resistance Current Conductor
50
50
50
P
50
A
0
(°C)
(°C)
(°C)
I
(A)
P
(°C)
= 0 A
5
75
75
75
75
10
100
100
100
100
T
A
15
Fully Integrated, Hall Effect-Based Linear Current Sensor with
(°C)
–40
–20
125
25
85
125
125
125
125
20
Characteristic Performance
150
150
150
I
150
25
P
= 20 A, unless otherwise specified
0 A Output Voltage Current versus Ambient Temperature
110.00
108.00
106.00
104.00
102.00
100.00
100.8
100.6
100.4
100.2
100.0
98.00
96.00
94.00
92.00
90.00
–0.05
–0.10
–0.15
99.8
99.6
99.4
99.2
99.0
0.25
0.20
0.15
0.10
0.05
10.4
10.2
10.0
0.35
0.30
0.25
0.20
0.15
0.10
0.05
9.8
9.6
9.4
9.2
9.0
-50
0
0
–50
–50
–25 –20 –15 –10
4.5
Nonlinearity versus Ambient Temperature
Sensitivity versus Ambient Temperature
Supply Current versus Supply Voltage
Sensitivity versus Sensed Current
4.6
-25
–25
–25
4.7
0
0
0
V
4.8
CC
25
= 5 V
25
25
4.9
–5
T
V
T
A
T
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
50
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
5.0
Ip (A)
CC
50
50
A
A
0
I
(°C)
P
(°C)
(°C)
(V)
= 0 A
5.1
5
75
75
75
5.2
10
T
100
100
100
A
(°C)
–40
150
5.3
15
25
85
125
125
125
5.4
20
150
150
5.5
150
25
7