A19350LUBATN-RPM-A datasheet(6/14 Pages) ALLEGRO

Part #	A19350LUBATN-RPM-A

Description	High Accuracy GMR Wheel Speed and Direction Sensor IC

PDF	14 Pages

Scroll/Zoom	100%

Manufacturer	ALLEGRO [Allegro MicroSystems]

Direct Link	http://www.allegromicro.com

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6 / 14 page

High Accuracy GMR Wheel Speed and Direction Sensor IC

A19350

Allegro MicroSystems, LLC

955 Perimeter Road

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

www.allegromicro.com

Figure 3: Differential Signal Variation

B SEQ(n)

B SEQ(n + 1)

B, i≥ 2

SEQ(n+i)

Target

SNSN

TCYCLE

BDIFF

= Differential Input Signal; the differential magnetic

= Target Cycle; the amount of rotation that

flux sensed by the sensor

moves one north pole and one south pole

across the sensor

Figure 4: Definition of TCYCLE

Figure 5: Definition of Switch Point Separation

BDIFF(BRP)

BDIFF(BOP)

BDIFF(pk-pk)

BDIFF(SP)

DIFF(SP-SEP)

(B )

TCYCLE

Channel A

Channel B

Figure 6: Input Signal Definition

0 G

BDIFF(max)

BDIFF(min)

Time

Applied BDIFF

BDIFF

BDIFF(pk-pk)

A19350LUBATN-RPM-A Datasheet(PDF) 6 Page - Allegro MicroSystems