ATS645LSH-I2TN Allegro Microsystems Inc, ATS645LSH-I2TN Datasheet - Page 5

• Manufacturer Part Number: ATS645LSH-I2TN
• Description: IC SENSOR GEAR TOOTH 4-SIP
• Manufacturer: Allegro Microsystems Inc
• Type: Special Purposer

Specifications of ATS645LSH-I2TN

• Sensing Range: 120mV Trip, 120mV Release
• Voltage - Supply: 4 V ~ 24 V
• Current - Supply: 8.4mA
• Output Type: Digital, Open Collector
• Features: Gear Tooth Type
• Operating Temperature: -40°C ~ 150°C
• Package / Case: 4-SIP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Current - Output (max): -

ATS645LSH
OPERATING CHARACTERISTICS (continued) using reference target 60-0, T
SWITCHPOINT CHARACTERISTICS
Rotation Speed
Analog Signal Bandwidth
Operate Point
Release Point
CALIBRATION
Initial Calibration
DAC CHARACTERISTICS
Allowable User-Induced Differential
Offset
FUNCTIONAL CHARACTERISTICS
Operational Air Gap Range
Maximum Operational Air Gap
Range
Duty Cycle Variation
Operating Magnetic Flux Density
Differential
Minimum Operating Signal
1
2
3
4
Note: di/dt is dependent upon the value of the bypass capacitor, if one is used.
5
6
characterized. The fi eld available from the reference target is given in the reference target parameter section of the datasheet.
7
8
effect of target wobble.
Typical values are at T
Maximum voltage must be adjusted for power dissipation and junction temperature; see Power Derating section.
Power-On Time includes the time required to complete the internal automatic offset adjust. The DACs are then ready for peak acquisition.
dI is the difference between 10% of I
Functional characteristics valid only if magnetic offset is within the specifi ed range for Allowable User Induced Differential Offset.
AG is dependent on the available magnetic fi eld. The available fi eld is dependent on target geometry and material, and should be independently
Duty cycle specifi cation may not be met if the magnetic signal during the calibration period is not representative of the installation air gap.
In order to remain in specifi cation, the magnetic gradient must induce an operating signal greater than the minimum value specifi ed. This includes the
Characteristic
8
7
A
= 25°C and V
6
CC(Low)
CC
AG
5
Sig
= 12 V. Performance may vary for individual units, within the specifi ed maximum and minimum limits.
Symbol
B
S
∆DC
AG(p-p)
B
B
BW
OP(max)
and 90% of I
AG
OP(min)
ROT
C
OP
RP
True Zero Speed Miniature Differential Peak-
I
Reference Target 60-0
Equivalent to f – 3dB
Transitioning from I
referenced; AG < AG
Transitioning from I
referenced; AG < AG
Quantity of rising output (current) edges required for
accurate edge detection
Output switching only; may not meet datasheet speci-
fi cations
∆DC within specifi cation
Output switching (no missed edges); ∆DC not
guaranteed
Wobble < 0.5mm; Typical value at AG = 1.5 mm, for
max., min., AG within specifi cation
Operating within specifi cation
Output switching (no missed edges); ∆DC not
guaranteed
CC(High)
, and dt is time period between those two points.
Test Conditions
CC(High)
CC(Low)
MAX
MAX
Detecting Gear Tooth Sensor IC
to I
to I
A
CC(High)
CC(Low)
and V
; positive peak
; negative peak
CC
within specifi cation, unless otherwise noted
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
Min.
–60
0.5
20
43
30
20
0
–
–
–
–
Typ.
120
120
40
53
–
–
–
–
–
–
–
1
8,000
Max.
1000
2.75
60
63
–
–
–
3
3
–
Units
Edge
rpm
kHz
mm
mm
mV
mV
%
G
G
G
4