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ACS709
High Bandwidth, Fast Fault Response Current Sensor IC
In Thermally Enhanced Package
X 20B PERFORMANCE CHARACTERISTICS , T A Range L, valid at T A = – 40°C to 150°C, V CC = 5 V, unless otherwise specified
Characteristic
Optimized Accuracy Range
Linear Sensing Range
Symbol
I P(OA)
I P(LIN)
Test Conditions
Min.
–20
–37.5
Typ.
–
–
Max.
20
37.5
Units
A
A
Performance Characteristics at V CC = 5 V
Noise 1
V NOISE(rms) T A = 25°C, Sens = 56 mV/A, C f = 0, C LOAD = 4.7 nF, R LOAD open
I P = 12.5 A, T A = 25°C
–
–
1.50
56
–
–
mV
mV/A
Sensitivity 2,3
Sens
I P = 12.5 A, T A = 25°C to 150°C
I P = 12.5 A, T A = – 40°C to 25°C
I P = 0 A, T A = 25°C
54.5
54.5
–
–
–
±5
58
58.5
–
mV/A
mV/A
mV
Electrical Offset
Voltage 2
V OE
I P = 0 A, T A = 25°C to 150°C
–25
–
25
mV
I P = 0 A, T A = – 40°C to 25°C
–40
–
40
mV
Total Output Error 2,4
E TOT
Tested at I P =12.5 A, I P applied for 5 ms, T A = 25°C to 150°C
Tested at I P =12.5 A, I P applied for 5 ms, T A = – 40°C to 25°C
–
–
±2
±3
–
–
%
%
1 V pk-pk noise (6 sigma noise) is equal to 6 × V NOISE(rms) . Lower noise levels than this can be achieved by using C f for applications requiring narrower
bandwidth. See Characteristic Performance page for graphs of noise versus C f and bandwidth versus C f .
2 See Characteristic Performance Data graphs for parameter distribution over ambient temperature range.
3 This parameter can drift by as much as 1.75% over lifetime of the product.
4 This parameter can drift by as much as 2.5% over lifetime of the product.
X 35B PERFORMANCE CHARACTERISTICS , T A Range L, valid at T A = – 40°C to 150°C, V CC = 5 V, unless otherwise specified
Characteristic
Optimized Accuracy Range
Linear Sensing Range
Symbol
I P(OA)
I P(LIN)
Test Conditions
Min.
–37.5
–75
Typ.
–
–
Max.
37.5
75
Units
A
A
Performance Characteristics at V CC = 5 V
Noise 1
V NOISE(rms) T A = 25°C, Sens = 28 mV/A, C f = 0, C LOAD = 4.7 nF, R LOAD open
I P = 25 A, T A = 25°C
–
–
1
28
–
–
mV
mV/A
Sensitivity 2,3
Sens
I P = 25 A, T A = 25°C to 150°C
I P = 25 A, T A = – 40°C to 25°C
I P = 0 A, T A = 25°C
27
27
–
–
–
±5
29.5
29.5
–
mV/A
mV/A
mV
Electrical Offset
Voltage 2
V OE
I P = 0 A, T A = 25°C to 150°C
–25
–
25
mV
I P = 0 A, T A = – 40°C to 25°C
–40
–
40
mV
Total Output Error 2,4
E TOT
Tested at I P = 25 A, I P applied for 5 ms, T A = 25°C to 150°C
Tested at I P = 25 A, I P applied for 5 ms, T A = – 40°C to 25°C
–
–
±3
±3
–
–
%
%
1 V pk-pk noise (6 sigma noise) is equal to 6 × V NOISE(rms) . Lower noise levels than this can be achieved by using C f for applications requiring narrower
bandwidth. See Characteristic Performance page for graphs of noise versus C f and bandwidth versus C f .
2 See Characteristic Performance Data graphs for parameter distribution over ambient temperature range.
3 This parameter can drift by as much as 1.75% over lifetime of the product.
4 This parameter can drift by as much as 2.5% over lifetime of the product.
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
6
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