ATS632LSC
HALL-EFFECT
GEAR-TOOTH SENSOR
SUBASSEMBLY
ALLOWABLE PACKAGE POWER DISSIPATION IN mW
FEATURES AND BENEFITS
s
s
s
s
s
s
s
s
Non-Oriented Installation
Fully Optimized Gear-Tooth Sensors
Single-Chip Sensing IC for High Reliability
Zero-Speed Digital Output Representing Target
Profile
Extremely Low Timing Accuracy Drift with Tempera-
ture
Large Operating Air Gaps
Optimized Magnetic Circuit
Self-Calibrating Circuitry
with Integrated Offset Cancellation
6-bit A/D Converters to Capture Peaks
Thresholds Proportional to Peak-to-Peak Signals
1200
1000
800
R
θJA
= 119°C/W
600
400
200
0
20
40
60
80
100
120
140
AMBIENT TEMPERATURE IN
°C
160
180
Dwg. GH-065-2
FUNCTIONAL BLOCK DIAGRAM
1
SUPPLY
REG
MAGNET
GAIN
X
100
Ω
2
THRESHOLD
OUTPUT
LOGIC
OUTPUT
–
+
REFERENCE
GENERATOR
330 pF
CURRENT
LIMIT
PEAK
OFFSET
POSITIVE PEAK
TRACK & HOLD
3
NEGATIVE PEAK
TRACK & HOLD
GROUND
Dwg. FH-015-3
115 Northeast Cutoff, Box 15036
W
Worcester, Massachusetts 01615-0036 (508) 853-5000
Copyright © 1998, Allegro MicroSystems, Inc.
ALLEGRO [ ALLEGRO MICROSYSTEMS ]
