ACS780LLRTR-100B-T datasheet(19/24 Pages) ALLEGRO

Part #	ACS780LLRTR-100B-T

Description	Core-less, micro-sized, 100 A continuous current package

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Manufacturer	ALLEGRO [Allegro MicroSystems]

Direct Link	http://www.allegromicro.com

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19 / 24 page

High-Precision Linear Hall-Effect-Based

Current Sensor IC With 200 µΩ Current Conductor

ACS780xLR

19

Allegro MicroSystems, LLC

115 Northeast Cutoff

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

1.508.853.5000; www.allegromicro.com

• Coming out of UVLOWhileUVLOisenabled[6],ifVCC

exceeds VUVLOH[7],UVLOwillbedisabledaftertUVLOD,

and the output will be VCC / 2 [8].

• Power-Down As VCC ramps down below VUVLOL[6’,9],the

UVLOEnableCounterwillstartcounting.IfVCC is higher

than VPORL when the counter reaches tUVLOE,theUVLO

function will be enabled and the ouput will be pulled near

GND[10].Theoutputwillenterahigh-impedancestateas

VCC goes below VPORL [11]. If VCC falls below VPORL before

theUVLOEnableCounerreachestUVLOE, the output will

transitiondirectlyintoahigh-impedancestate[7’].

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