ATS627 datasheet(5/22 Pages) ALLEGRO

Part #	ATS627

Description	True Zero Speed, Low Jitter, High Accuracy Position Sensor IC

PDF	22 Pages

Scroll/Zoom	100%

Manufacturer	ALLEGRO [Allegro MicroSystems]

Direct Link	http://www.allegromicro.com

Logo

5 / 22 page

True Zero Speed, Low Jitter, High Accuracy

Position Sensor IC

ATS627LSG

Allegro MicroSystems, LLC

115 Northeast Cutoff

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

1.508.853.5000; www.allegromicro.com

BSEQ(n)

BSEQ(n+1)

BSEQ(max)

BSEQ(min)

Sequential Regions

Signature

Region

BSIG

VPROC

Target

TVPROC

VPROC = the processed analog signal of the sinusoidal magnetic input (per channel)

TTARGET = period between successive sensed target mechanical edges of the same

orientation (either both rising or both falling)

TTARGET

Valley

Tooth

Figure 2. Definition of TTARGET

Figure 3. Differential signature amplification and sequential signal variation

td(OUT)

tf(OUT)

90% VOUT

10% VOUT

VPROC(high)

VPROC(BOP)

VPROC(BRP)

VOUT(high)

VPROC(low)

VOUT(low)

Time

td(OUT)

tr(OUT)

Figure 1. Definition of Output Delay Time, td(OUT), Output Fall Time, tf(OUT) , and Output Rise Time, tr(OUT) .

ATS627 Datasheet(PDF) 5 Page - Allegro MicroSystems