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| 型號： | ACS754SCB-130-PFF |
| 廠商： | Allegro MicroSystems, Inc. |
| 英文描述： | Current Sensor |
| 中文描述： | 電流傳感器 |
| 文件頁數(shù)： | 7/11頁 |
| 文件大?。?/td> | 506K |
| 代理商： | ACS754SCB-130-PFF |
7
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
ACS754130-DS, Rev. 3
Current Sensor: ACS754xCB-130
De
fi
nitions of Dynamic Response Characteristics
Propagation delay (t
PROP
):
The time required for the sensor output to re
fl
ect a change in the primary current
signal. Propagation delay is attributed to inductive loading within the linear IC package, as well as in the induc-
tive loop formed by the primary conductor geometry. Propagation delay can be considered as a
fi
xed time offset
and may be compensated.
Response time (t
RESPONSE
):
The time interval between a) when the primary current signal reaches 90% of its
fi
nal value, and b) when the sensor reaches 90% of its output corresponding to the applied current.
Rise time (t
r
):
The time interval between a) when the sensor reaches 10% of its full scale value, and b) when
it reaches 90% of its full scale value. The rise time to a step response is used to derive the bandwidth of the
current sensor, in which (–3 dB) = 0.35 / t
r
. Both t
r
and t
RESPONSE
are detrimentally affected by eddy current
losses observed in the conductive IC ground plane and, to varying degrees, in the ferrous
fl
ux concentrator
within the current sensor package.
Primary Current
Transducer Output
90
0
I (%)
Propagation Time, t
PROP
t
Primary Current
Transducer Output
90
0
I (%)
Response Time, t
RESPONSE
t
Primary Current
Transducer Output
90
10
0
I (%)
Rise Time, t
r
t
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