Datasheet > ATS699LSNTN-FSWPH-T

ATS699LSNTN-FSWPH-T

更新时间： 2022-06-24 15:42:01

品牌	Logo	应用领域
急速微 - ALLEGRO		/
页数	文件大小	规格书
15页	861K
描述
Two-Wire, Differential, Vibration-Resistant Sensor IC with Speed and Direction Output

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Two-Wire, Differential, Vibration-Resistant Sensor

with Speed and Direction Output

ATS699LSN

TIMING

Pin 3 to 1 Rotation

Valley

Tooth

Δfwd

t_w(FWD)

As shown in Figure 6, the pulse appears at the output slightly

before the sensed magnetic edge traverses the package branded

face. For targets rotating from pin 3 to 1, this shift (Δfwd with R

variants) results in the pulse corresponding to the valley with the

sensed mechanical edge; for targets rotating from pin 1 to 3, the

shift (Δrev) results in the pulse corresponding to the tooth with

the sensed edge. Figure 7 shows pulse timing for F variants. The

sensed mechanical edge that stimulates output pulses is kept the

same for both forward and reverse rotation by using only one

channel to control output switching.

Pin 1 to 3 Rotation

Output Pulse

(Pin 3 to 1 Rotation)

Δrev

t_w(REV)

Output Pulse

(Pin 1 to 3 Rotation)

Figure 6: Output Protocol (-RSxxx Variant)

Direction Validation

Δrev

For the -xxxxL variant, following a direction change in run-

ning mode, direction changes are immediately transmitted to the

output.

t_w(REV)

Output Pulse

(Pin 3 to 1 Rotation)

For the -xxxxH variant, following a direction change in running

mode, output pulses have a width of t_w(ND)until direction infor-

mation is validated.

Δfwd

t_w(FWD)

Output Pulse

(Pin 1 to 3 Rotation)

Figure 7: Output Protocol (-FDxxx Variant)

Target Rotation Forward

Target Rotation Reverse

Valley

Tooth

Target

Differential

Magnetic

Proﬁle

t_w(REV)

t_w(FWD)

I_OUT

Figure 8: Running Mode Direction Change (-FSxxL Variant)

Target Rotation Forward

Target Rotation Reverse

Valley

Tooth

Target

Differential

Magnetic

Proﬁle

t_w(ND)

t_w(REV)

t_w(FWD)

I_OUT

Figure 9: Running Mode Direction Change (-FSxxH Variant)

Allegro MicroSystems, LLC

955 Perimeter Road

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

www.allegromicro.com

1...7 8 91011 12 13...15

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