GMR Speed and Direction Crankshaft Sensor

with Three-Wire, Pulse-Width Output

ATS16951PSM

2

Allegro MicroSystems

955 Perimeter Road

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

www.allegromicro.com

PROGRAMMABLE OPTIONS

Name

Available Selections*

Sensor Output Protocol

Pulse Width Option (Variable output pulse width

protocol conveys rotational speed and relative

direction)

(W option)

Speed Only Option (Digital square wave output

only conveys rotational speed, no relative direction

information is available)

(O option)

Forward Pulse, tW(FWD), Rotation Direction

Target movement from pin 1 to pin 3

(F Option)

Target movement from pin 3 to pin 1

(R Option)

Output Pulse Location

Pulse in middle of the tooth with ferromagnetic target or

rising mechanical edge (decided by M1 or M2 option)

(N Option)

Pulse in middle of the valley with ferromagnetic target

or falling mechanical edge (decided by M1 or M2

option)

(S Option)

Pulse sent in the middle of the target feature (valley or

tooth decided by option N or S)

(Option M1)

Pulse sent on the mechanical edge (rising or falling

mechanical edge decided by option N or S)

(Option M2)

Typical Forward Pulse Width, tW(FWD)

22.5 μs

(F1 Option)

45 μs

(F2 Option)

Typical Reverse Pulse Width, tW(REV)

45 μs

(R1 Option)

90 μs

(R2 Option)

135 μs

(R3 Option)

180 μs

(R4 Option)

Typical Fall Time (with VPU = 5 V and RPU = 1 kΩ)

3 μs

(T1 option)

6 μs

(T2 option)

1 μs

(T3 option)

2 μs

(T4 option)

Target Profiling Diagnostics

Target profile Diagnostics enabled

(D option)

Target profile Diagnostics not available

(NA)

ASIL Protocol

ASIL enabled with Open Short

Detection enabled

(1 V / 4 V Output,

A Option)

ASIL enabled with Open Short

Detection disabled

(0 V / 5 V Output,

B Option)

ASIL disabled

(NA)

*Not all combinations are available. Contact Allegro sales for pricing and availability of custom programming options.

SELECTION GUIDE

Part Number

Package

Packing

ATS16951PSMGTN-WFNM2F2R2T1-D-B

3-pin SIP with NiPdAu leadframe plating

Tape and reel, 800 pieces per 13-inch reel

ATS16951PSMGTN-WFNM2F2R2T1-D-A

ATS16951PSMGTN-WFNM2F2R2T1-D