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ACS712 Datasheet(PDF) 8 Page - Allegro MicroSystems

Part # ACS712
Description  Fully Integrated, Hall Effect-Based Linear Current Sensor IC
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Manufacturer  ALLEGRO [Allegro MicroSystems]
Direct Link  http://www.allegromicro.com
Logo ALLEGRO - Allegro MicroSystems

ACS712 Datasheet(HTML) 8 Page - Allegro MicroSystems

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Fully Integrated, Hall Effect-Based Linear Current Sensor IC
with
2.1 kVRMS Isolation and a Low-Resistance Current Conductor
ACS712
8
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Characteristic Performance
IP = 30 A, unless otherwise specified
–40
25
85
150
TA (°C)
–40
25
–20
85
125
TA (°C)
IP = 0 A
IP = 0 A
VCC = 5 V
VCC = 5 V
VCC = 5 V
VCC = 5 V; IP = 0 A,
After excursion to 20 A
VCC = 5 V
Mean Supply Current versus Ambient Temperature
Sensitivity versus Sensed Current
70.00
69.00
68.00
67.00
66.00
65.00
64.00
63.00
62.00
61.00
60.00
Ip (A)
TA (°C)
TA (°C)
9.6
9.5
9.4
9.3
9.2
9.1
9.0
8.9
-50
-25
0
25
50
75
125
100
150
Supply Current versus Supply Voltage
10.2
10.0
9.8
9.6
9.4
9.2
9.0
VCC (V)
Nonlinearity versus Ambient Temperature
0.45
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0
–50
0
–25
25
50
125
75
100
150
TA (°C)
Mean Total Output Error versus Ambient Temperature
8
6
4
2
0
–2
–4
–6
–8
–50
0
–25
25
50
125
75
100
150
IP (A)
Output Voltage versus Sensed Current
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
–30
–20
–10
0
10
20
30
4.5
4.6
4.8
4.7
4.9
5.0
5.3
5.1
5.2
5.4
5.5
–30
–20
–10
0
10
20
30
66.6
66.5
66.4
66.3
66.2
66.1
66.0
65.9
65.8
65.7
TA (°C)
Sensitivity versus Ambient Temperature
–50
0
–25
25
50
125
75
100
150
TA (°C)
0
–0.5
–1.0
–1.5
–2.0
–2.5
–3.0
–3.5
–4.0
–4.5
–5.0
-50
-25
0
25
50
75
125
100
150
Magnetic Offset versus Ambient Temperature
TA (°C)
2535
2530
2525
2520
2515
2510
2505
2500
2495
2490
2485
-50
-25
0
25
50
75
125
100
150
TA (°C)
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0
–0.05
–0.10
–0.15
-50
-25
0
25
50
75
125
100
150
0 A Output Voltage versus Ambient Temperature
0 A Output Voltage Current versus Ambient Temperature


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