Datasheet ACS714 (Allegro) - 10

Automotive Grade, Fully Integrated, Hall-Effect-Based Linear Current Sensor IC ACS714 with 2.1 kVRMS Voltage Isolation and Low-Resistance Current Conductor
Characteristic Performance IP = 5 A, unless otherwise specified Mean Supply Current versus Ambient Temperature Supply Current versus Supply Voltage 10.30 10.9 10.25 10.8 10.20 10.7 10.15
A)
10.10 10.6 10.05 V
(m
CC = 5 V
(mA)
10.5
CC
10.00
I CC
10.4 9.95 10.3
Mean I
9.90 9.85 10.2 9.80 10.1 9.75 10.0 -50 -25 0 25 50 75 100 125 150 4.5 4.6 4.7 4.8 4.9 5.0 5.1 5.2 5.3 5.4 5.5
T V A (°C) CC (V)
Magnetic Offset versus Ambient Temperature Nonlinearity versus Ambient Temperature 0 0.6 –0.5 –1.0 0.5 –1.5 0.4 VCC = 5 V
A)
–2.0
(%)
V
(m
CC = 5 V; IP = 0 A, –2.5 After excursion to 20 A 0.3
I OM E LIN
–3.0 –3.5 0.2 –4.0 0.1 –4.5 –5.0 0 -50 -25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150
TA (°C) TA (°C)
Mean Total Output Error versus Ambient Temperature Sensitivity versus Ambient Temperature 8 186.5 186.0 6 185.5 4 185.0
V/A) m (%)
2 184.5
s (
184.0 0
E TOT Sen
183.5 –2 183.0 182.5 –4 182.0 –6 181.5 –8 181.0 –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 4.0 200.00 190.00 3.5 180.00 3.0 VCC = 5 V
V/A)
170.00
m (V)
2.5 160.00
s (
TA (°C) T 2.0 A (°C) 150.00 –40
V IOUT Sen
–40 25 140.00 1.5 25 85 85 130.00 150 1.0 150 120.00 0.5 110.00 0 100.00 –7 –6 –5 –4 –3 –2 –1 0 1 2 3 4 5 6 7 -6 -4 -2 0 2 4 6
Ip (A) IP I (A)
0 A Output Voltage versus Ambient Temperature 0 A Output Voltage Current versus Ambient Temperature 2520 0.20 2515 0.15 2510 IP = 0 A 0.10 IP = 0 A
(mV)
2505
(A)
0.05
V IOUT(Q)
2500
I OUT(Q)
0 2495 –0.05 2490 –0.10 2485 –0.15 -50 -25 0 25 50 75 100 125 150 -50 -25 0 25 50 75 100 125 150
TA (°C) TA (°C)
9 Allegro MicroSystems 955 Perimeter Road Manchester, NH 03103-3353 U.S.A. www.allegromicro.com