ACS715LLCTR-20A-T Allegro Microsystems Inc, ACS715LLCTR-20A-T Datasheet - Page 10

• Manufacturer Part Number: ACS715LLCTR-20A-T
• Description: IC, LINEAR CURRENT SENSOR, 10mA, 8-SOIC
• Manufacturer: Allegro Microsystems Inc
• Series: -r

Specifications of ACS715LLCTR-20A-T

• Quiescent Current: 10mA
• Bandwidth: 80kHz
• Sensor Case Style: SOIC
• No. Of Pins: 8
• Supply Voltage Range: 4.5V To 5.5V
• Operating Temperature Range: -40°C To +150°C
• Polarization: Unipolar
• Current - Sensing: 20A
• Accuracy: ±1.5%
• Sensitivity: 185mV/A
• Current - Supply: 10mA
• Sensor Type: Hall Effect
• Voltage - Supply: 4.5 V ~ 5.5 V
• Output: 500mV
• Frequency: 80kHz
• Response Time: 5µs
• Operating Temperature: -40°C ~ 150°C
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ACS715
Definitions of Dynamic Response Characteristics
Power-On Time (t
ing voltage, the device requires a finite time to power its internal
components before responding to an input magnetic field.
Power-On Time, t
voltage to settle within ±10% of its steady state value under an
applied magnetic field, after the power supply has reached its
minimum specified operating voltage, V
chart at right.
Rise time (t
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 device, in which ƒ(–3 dB) = 0.35 / t
Both t
losses observed in the conductive IC ground plane.
r
and t
1200
1000
200
180
160
140
120
100
800
600
400
200
80
60
40
20
0
0
r
0
0
RESPONSE
). The time interval between a) when the device
Power on Time versus External Filter Capacitance
Rise Time versus External Filter Capacitance
PO
PO
100
10
, is defined as the time it takes for the output
). When the supply is ramped to its operat-
are detrimentally affected by eddy current
}
Expanded in chart at right
200
20
C
C
F
F
(nF)
(nF)
300
30
I
P
= 5 A
CC
(min), as shown in the
40
400
Automotive Grade, Fully Integrated, Hall Effect-Based Linear Current Sensor IC
I
P
= 0 A
with 2.1 kVRMS Voltage Isolation and a Low-Resistance Current Conductor
500
50
C
100
220
470
F
10
22
47
(nF)
0
1
4.7
r
.
1120.0
291.3
623.0
17.4
32.1
68.2
88.2
t
6.6
7.7
r
(μs)
10000
1000
400
350
300
250
200
150
100
100
50
10
0
1
0.01
0
I (%)
90
10
0
Rise Time versus External Filter Capacitance
25
Noise versus External Filter Capacitance
0.1
50
Noise vs. Filter Cap
115 Northeast Cutoff, Box 15036
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 [phone]
www.allegromicro.com
Primary Current
1
Rise Time, t
Transducer Output
C
C
75
F
F
(nF)
(nF)
10
r
100
100
125
t
150
1000
10