Automotive Grade, Fully Integrated, Hall Effect-Based Linear Current Sensor
with 2.1 kVRMS Voltage Isolation and a Low-Resistance Current Conductor
ACS714
Characteristic Performance
IP = 5 A, unless otherwise specified
Mean Supply Current versus Ambient Temperature
Supply Current versus Supply Voltage
10.30
10.25
10.20
10.15
10.10
10.05
10.00
9.95
10.9
10.8
10.7
10.6
10.5
10.4
10.3
10.2
10.1
10.0
VCC = 5 V
VCC = 5 V
9.90
9.85
9.80
9.75
4.5 4.6 4.7 4.8 4.9 5.0 5.1 5.2 5.3 5.4 5.5
-50 -25
0
25 50 75 100 125 150
VCC (V)
TA (°C)
Magnetic Offset versus Ambient Temperature
0
Nonlinearity versus Ambient Temperature
0.6
–0.5
0.5
0.4
0.3
0.2
0.1
0
–1.0
–1.5
–2.0
–2.5
–3.0
–3.5
–4.0
–4.5
–5.0
VCC = 5 V
VCC = 5 V; IP = 0 A,
After excursion to 20 A
–50 –25
0
25
50
75
100 125 150
-50 -25
0
25 50 75 100 125 150
A (°C)
T
TA (°C)
Mean Total Output Error versus Ambient Temperature
Sensitivity versus Ambient Temperature
8
186.5
186.0
185.5
185.0
184.5
184.0
183.5
183.0
182.5
182.0
181.5
181.0
6
4
2
0
–2
–4
–6
–8
–50 –25
0
25
50
75
100 125 150
–50 –25
0
25
50
75
100 125 150
TA (°C)
TA (°C)
Output Voltage versus Sensed Current
Sensitivity versus Sensed Current
200.00
190.00
180.00
170.00
160.00
150.00
140.00
130.00
120.00
110.00
100.00
0.6
0.5
0.4
0.3
0.2
0.1
0
VCC = 5 V
TA (°C)
–40
25
85
150
TA (°C)
–40
25
85
150
-6
-4
-2
0
2
4
6
–7 –6 –5 –4 –3 –2 –1
0
1
2
3
4
5
6
7
Ip (A)
IP (A)
0 A Output Voltage versus Ambient Temperature
2520
0 A Output Voltage Current versus Ambient Temperature
0.20
2515
0.15
IP = 0 A
2510
IP = 0 A
0.10
0.05
0
2505
2500
2495
2490
2485
–0.05
–0.10
–0.15
-50 -25
0
25 50 75 100 125 150
-50 -25
0
25 50 75 100 125 150
TA (°C)
TA (°C)
Allegro MicroSystems, Inc.
8
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
ALLEGRO [ ALLEGRO MICROSYSTEMS ]
