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ACS715
Automotive Grade, Fully Integrated, Hall Effect-Based Linear Current Sensor IC
with 2.1 kVRMS Voltage Isolation and a Low-Resistance Current Conductor
x20A PERFORMANCE CHARACTERISTICS over Range E: T A = –40°C to 85°C 1 , C F = 1 nF, and V CC = 5 V, unless otherwise specified
Characteristic
Optimized Accuracy Range
Sensitivity
Noise
Zero Current Output Slope
Sensitivity Slope
Electrical Output Voltage
Total Output Error 2
Symbol
I P
Sens
V NOISE(PP)
Δ V OUT(Q)
Δ Sens
V OE
E TOT
Test Conditions
Over full range of I P , I P applied for 5 ms; T A = 25°C
Peak-to-peak, T A = 25°C, 2 kHz external filter, 185 mV/A pro-
grammed Sensitivity, C F = 47 nF, C OUT = 10 nF, 2 kHz bandwidth
T A = –40°C to 25°C
T A = 25°C to 150°C
T A = –40°C to 25°C
T A = 25°C to 150°C
I P = 0 A
I P = 20 A , I P applied for 5 ms; T A = 25°C
Min.
0
178
–
–
–
–
–
–40
–
Typ.
–
185
21
0.08
0.16
0.035
0.019
–
±1.5
Max.
20
190
–
–
–
–
–
40
–
Units
A
mV/A
mV
mV/°C
mV/°C
mV/A/°C
mV/A/°C
mV
%
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 = 20 A. Output filtered.
x20A PERFORMANCE CHARACTERISTICS over Range L: T A = –40°C to 150°C 1 , C F = 1 nF, and V CC = 5 V, unless otherwise specified
Characteristic
Optimized Accuracy Range
Sensitivity
Noise
Zero Current Output Slope
Sensitivity Slope
Electrical Output Voltage
Total Output Error 2
Symbol
I P
Sens
V NOISE(PP)
Δ V OUT(Q)
Δ Sens
V OE
E TOT
Test Conditions
Over full range of I P , I P applied for 5 ms; T A = 25°C
Over full range of I P , T A = –40°C to 150°C
Peak-to-peak, T A = 25°C, 2 kHz external filter, 185 mV/A pro-
grammed Sensitivity, C F = 47 nF, C OUT = 10 nF, 2 kHz bandwidth
T A = –40°C to 25°C
T A = 25°C to 150°C
T A = –40°C to 25°C
T A = 25°C to 150°C
I P = 0 A
I P = 20 A , I P applied for 5 ms; T A = 25°C
I P = 20 A , I P applied for 5 ms; T A = –40°C to 150°C
Min.
0
–
161
–
–
–
–
–
–40
–
–6
Typ.
–
185
–
21
0.08
0.16
0.035
0.019
–
±1.5
–
Max.
20
–
194
–
–
–
–
–
40
–
6
Units
A
mV/A
mV/A
mV
mV/°C
mV/°C
mV/A/°C
mV/A/°C
mV
%
%
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 = 20 A. Output filtered.
Allegro MicroSystems, LLC
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
5
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