Dynamic, Self-Calibrating, Peak-Detecting, Differential
Hall Effect Gear Tooth Sensor IC
ATS617LSG
3
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
OPERATING CHARACTERISTICS over operating voltage and temperature range, unless otherwise noted
Characteristic
Symbol
Test Condition
Min. Typ.
1
Max. Unit
Electrical Characteristics
Supply Voltage
2
V
CC
Operating, T
J
< 165癈
4.5 24 V
Supply Protection Resistor
R
S
60 72 ?/DIV>
Undervoltage Lockout Threshold
V
CC(UV)
V
CC
= 0 ?5 V; V
CC
= 5 ?0 V
3.7 V
Output On Voltage
V
OUT(SAT)
I
OUT
= 15 mA, output on
100 400 mV
Supply Zener Clamp Voltage
V
Zsupply
I
CC
= 15 mA, T
A
= 25癈
28 V
Output Zener Clamp Voltage
V
Zoutput
I
OUT
= 3 mA, T
A
= 25癈
30 V
Supply Zener Current
I
Zsupply
V
S
= 28 V
15 mA
Output Zener Current
I
Zoutput
V
OUT
= 30 V
3 mA
Output Current Limit
I
OUTM
V
OUT
= 12 V
25 45 55 mA
Output Leakage Current
I
OUTOFF
V
OUT
= 24 V, output off
15 糀
Supply Current
I
CC
V
CC
> V
CC
(min)
3 6 12 mA
Power-On Time
t
PO
V
CC
> 5 V
80 500 約
Power-On State
POS V
CC
= 0 ?5 V
High V
Output Rise Time
3
t
r
R
PU
= 2 k? C
L
= 4.7 nF, 10% to 90%
21 約
Output Fall Time
t
f
V
PU
= 5 V, R
PU
= 2 k? C
L
= 4.7 nF, 90% to 10%
6 約
V
PU
=12 V, R
PU
= 2 k? C
L
= 4.7 nF, 90% to 10%
6 9 12 約
Performance Characteristics
Operating Air Gap Range
AG
Allegro reference target 60+2 operating at or above Mini-
mum Operating Speed
0.4 2.5 mm
Operating Magnetic Flux Density
Differential
4
B
AG(p-p)
Operation at or above Minimum Operating Speed
60 G
Analog Signal Bandwidth
BW
15 kHz
Minimum Operating Speed
S
OP
Allegro 60+2 reference target
10 rpm
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