ACS710KLATR-6BB-NL-T(2013) 查看數據表（PDF） - Allegro MicroSystems

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ACS710KLATR-6BB-NL-T
(Rev.:2013)

120 kHz Bandwidth, High Voltage Isolation Current Sensor with Integrated Overcurrent Detection

Allegro MicroSystems 

ACS710

120 kHz Bandwidth, High Voltage Isolation

Current Sensor with Integrated Overcurrent Detection

Setting Overcurrent Fault Switchpoint

Setting 12CB and 25CB Versions

The VOC needed for setting the overcurrent fault

switchpoint can be calculated as follows:

VOC = 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 / Sens

0.25 VCC / Sens

0

– 0.25 VCC / Sens

– 0.4 VCC / Sens

IOC versus VOC

(12CB and 25CB Versions)

Not Valid Range

Valid Range

0. 25 VCC

0. 4 VCC

VOC

Example: For ACS710KLATR-25CB-T, if required overcurrent fault switchpoint is 50 A, and VCC = 5 V, then the

required VOC can be calculated as follows:

VOC = Sens × IOC = 28 × 50 = 1400 (mV)

Allegro MicroSystems, LLC

14

115 Northeast Cutoff

Worcester, Massachusetts 01615-0036 U.S.A.

1.508.853.5000; www.allegromicro.com

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