ACS716 View Datasheet(PDF) - Allegro MicroSystems
Part Name
Description
MFG CO.
ACS716
Allegro MicroSystems
'ACS716' PDF : 22 Pages View PDF
ACS716
120 kHz Bandwidth, High Voltage Isolation
Current Sensor with Integrated Overcurrent Detection
Setting 6BB Versions
The VOC needed for setting the overcurrent fault
switchpoint can be calculated as follows:
VOC = 1.17 × Sens × | IOC | ,
where VOC is in mV, Sens in mV/A, and IOC (overcur-
rent fault switchpoint) in A.
| Ioc | is the overcurrent fault switchpoint for a bi-
directional (AC) current, which means a bi-directional
sensor will have two symmetrical overcurrent fault
switchpoints, +IOC and –IOC .
See the following graph for IOC and VOC ranges.
IOC
0.4 VCC / (1.17 × Sens)
0.25 VCC / (1.17 × Sens)
0
– 0.25 VCC / (1.17 × Sens)
– 0.4 VCC / (1.17 × Sens)
IOC versus VOC
(6BB Versions)
Not Valid Range
Valid Range
0.25 VCC
0.4 VCC
VOC
Example: For ACS716KLATR-6BB-T, if required overcurrent fault switchpoint is 10 A, and VCC = 3.3 V, then the
required VOC can be calculated as follows:
VOC = 1.17 × Sens × IOC = 1.17 × 100 × 10 = 1170 (mV)
Allegro MicroSystems, LLC
15
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
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