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ACS720 Datasheet(PDF) 2 Page - Allegro MicroSystems

Part # ACS720
Description  High Accuracy, Dual Fault, Galvanically Isolated Current Sensor in SOIC16 Wide-Body Package
PDF  35 Pages
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Manufacturer  ALLEGRO [Allegro MicroSystems]
Direct Link  http://www.allegromicro.com
Logo ALLEGRO - Allegro MicroSystems

ACS720 Datasheet(HTML) 2 Page - Allegro MicroSystems

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High Accuracy, Dual Fault, Galvanically Isolated
Current Sensor in SOIC16 Wide-Body Package
ACS720
2
Allegro MicroSystems, LLC
955 Perimeter Road
Manchester, NH 03103-3353 U.S.A.
www.allegromicro.com
SELECTION GUIDE
Part Number
Sensing Range,
IPR (A)
Sensitivity,
Sens (Typ) (mV/A)
Fast Fault Mask
Time (Typ) (µs)
TA
(°C)
Packing*
ACS720KLATR-15AB-T
±15
90
0
–40 to 125
Tape and Reel,
1000 pieces
per reel
ACS720KLATR-15AB-T-4
±15
90
1.5
ACS720KLATR-35AB-T
±35
38.5
0
ACS720KLATR-35AB-T-4
±35
38.5
1.5
ACS720KLATR-65AB-T
±65
20.5
0
ACS720KLATR-65AB-T-4
±65
20.5
1.5
ACS720KLATR-80AB-T
±80
16
0
ACS720KLATR-80AB-T-4
±80
16
1.5
*Contact Allegro for packing options.
Near closed-loop accuracy is achieved in this open-loop sensor due
toAllegro’s patented, digital temperature compensation, ultimately
offering a smaller and more economical solution for many current
sensing applications that traditionally rely on closed-loop core
based sensors.
DESCRIPTION (continued)
Figure 2: Typical Applications
IP
IP+
IP+
IP+
IP+
VOC_S
VOC_F
FILTER
GND
IP-
IP-
IP-
IP-
FAULT_F/
VCC
VIOUT
FAULT_S/
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
IP
IP+
IP+
IP+
IP+
VOC_S
VOC_F
FILTER
GND
IP-
IP-
IP-
IP-
FAULT_F/
VCC
VIOUT
FAULT_S/
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
IP
IP+
IP+
IP+
IP+
VOC_S
VOC_F
FILTER
GND
IP-
IP-
IP-
IP-
FAULT_F/
VCC
VIOUT
FAULT_S/
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
VOC_S
VOC_F
VOC_S
VOC_F
VOC_S
VOC_F
CF
CF
CF
5 V
5 V
5 V
FF
SF
FF
SF
FF
SF
3.3 V
RPU
3.3 V
FF
MCU
Digital I/O
GND
ADC1
Digital I/O
VCC
ADC2
ADC3
RPU
SF
5 V
VOC_S
VOC_F
CB
CB
CB
1
2
3
4
5
6
7
8
IP+
IP+
IP+
IP+
IP–
IP–
IP–
IP–
16
15
14
13
12
11
10
9
VOC_S
VOC_F
VCC
FAULT_F
VIOUT
FILTER
FAULT_S
GND
VCC
Digital I/O
ADC
Digital I/O
GND
ACS720
CF
IP
5 V
MCU
3.3 V
RPU
RPU
CBYPASS
Three Phase
Single Phase
TheACS720 is provided in a small surface-mount SOIC16 package.
The leadframe is plated with 100% matte tin, which is compatible
withstandardlead(Pb)freeprintedcircuitboardassemblyprocesses.
Internally,thedeviceisPb-free,exceptforflip-chiphigh-temperature
Pb-based solder balls, currently exempt from RoHS. The device is
fully calibrated prior to shipment from the factory.



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