A17201LUAA-I1 View Datasheet(PDF) - Allegro MicroSystems

Part Name

Description

Manufacturer

A17201LUAA-I1

Two-Wire AC-Coupled Differential Sensor IC with Integrated Filter Capacitor

Allegro MicroSystems 

A17201

Two-Wire AC-Coupled Differential Sensor IC

with Integrated Filter Capacitor

DEFINITION OF TERMS

The following provides additional information about some of the

parameters cited. For additional information, visit the Allegro

website at www.allegromicro.com.

Applied Magnetic Field, Bdiff – The differential magnetic flux

density, which is calculated as the arithmetic difference of the

flux densities observed by each of the two Hall elements. fBdiff is

the input signal frequency.

Output Off Switchpoint (Operate Point), BOP – The value

of increasing differential magnetic flux density at which the out-

put signal, ICC switches from ICC(LOW) to ICC(HIGH).

Output On Switchpoint (Release Point), BRP – The value

of decreasing differential magnetic flux density at which the

output signal, ICC from ICC(HIGH) to ICC(LOW).

Power-On Time, tPO – The time needed by the device, after

power is applied, to initialize all circuitry necessary for proper

operation.

Settling Time, tSETTLING – The time required by the device,

after tPO, and after a valid magnetic signal has been applied, to

provide proper output transitions. Settling time is a function of

magnetic offset, offset polarity, signal phase, signal frequency,

and signal amplitude.

Response Time, tRESPONSE – The total time required for

generating zero-crossing output transitions after initialization (the

sum of Power-On Time and Settling Time).

6

Allegro MicroSystems

955 Perimeter Road

Manchester, NH 03103-3353 U.S.A.

www.allegromicro.com

Share Link: