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ATS632LSC 데이터시트 PDF




Allegro MicroSystems에서 제조한 전자 부품 ATS632LSC은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

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부품번호 ATS632LSC 기능
기능 ZERO-SPEED/ SELF-CALIBRATING/ NON-ORIENTED/ HALL-EFFECT GEAR-TOOTH SENSOR
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ATS632LSC 데이터시트, 핀배열, 회로
ATS632LSC
HALL-EFFECT
GEAR-TOOTH SENSOR
SUBASSEMBLY
ATS632LSC
ZERO-SPEED, SELF-CALIBRATING,
NON-ORIENTED, HALL-EFFECT GEAR-TOOTH SENSOR
The ATS632LSC gear-tooth sensor is an optimized Hall-effect IC/
magnet combination that provides tooth/valley recognition and ex-
tremely accurate tooth edge detection when used with large-pitch
targets. The sensor subassembly consists of a high-temperature
plastic shell that holds together a compound samarium-cobalt magnet,
a single-element self-calibrating Hall-effect IC that has been optimized
to the magnetic circuit, and a voltage regulator. This small package,
with its non-oriented operation, can be easily assembled and used in
conjunction with a number of gear configurations.
1 = Supply
2 = Output
3 = Ground
12 3
Dwg. AH-008
PRELIMINARY INFORMATION
(subject to change without notice)
April 8, 1998
ABSOLUTE MAXIMUM RATINGS
The gear sensing technology used for this sensor subassembly is
Hall-effect based. The sensor incorporates a single-element Hall IC
that switches in response to absolute magnetic signals created by a
ferrous target. The digital output is LOW over a tooth and HIGH over a
valley. The sophisticated processing circuitry contains self-calibrating
6-bit A/D circuitry that adapts the thresholds to the peak-to-peak
signals to minimize the effects of variation in application air gap on
switch-point timing accuracy. The effects of system and device offsets
are minimized by using active offset cancellation circuitry. The digital
algorithm provides zero-speed detection capabilities without the
associated running jitter inherent in classical digital solutions.
The sensor system is ideal for use in gathering speed, position and
profile information of ferrous objects. The device is particularly suited
to large tooth/valley sensing applications where accurate timing
accuracy is a desired feature. For applications requiring the sensing of
fine-pitch gears, the ATS611LSB is recommended.
Supply Voltage, VCC ......................... 24 V
Reverse Supply Voltage,
VRCC (1 minute max.) ................ -24 V
Output OFF Voltage, VOUT ................ 24 V
Output Current, IOUT .. Internally Limited
Reverse Output Current, IOUT ........ 50 mA
Package Power Dissipation,
PD .................................... See Graph
Operating Temperature Range,
TA ........................... -40°C to +150°C
Storage Temperature, TS ............ +170°C
continued next page…
Always order by complete part number, e.g., ATS632LSC .




ATS632LSC pdf, 반도체, 판매, 대치품
ATS632LSC
HALL-EFFECT
GEAR-TOOTH SENSOR
SUBASSEMBLY
OPERATION over operating voltage and temperature range with reference target (unless oth-
erwise specified).
Limits
Characteristic
Symbol Test Conditions
Min.
Typ.
Max.
Units
Operating Air Gap Range AG Operating,
Target Speed > 20 RPM
0.3 –
1.9
mm
Output Polarity
– Operating, Over Tooth
Low Low
Low
Operating, Over Valley
High
High
High
Timing Accuracy
tθ Target Speed < 3500 RPM,
0.3 mm AG 1.9 mm
±0.25
±0.50
°
NOTE: Air Gap is defined as the distance from the face of the sensor subassembly to the target.
TARGET DESIGN CRITERIA
Characteristic
Valley Depth
Valley Width
Tooth Width
Thickness
Eccentricity
Symbol
ht
(PC - T)
T
F
Description
Timing accuracy may change
Min.
Limits
Typ.
Max.
5.0 –
5.0 –
5.0 –
5.0 –
±0.25
Units
mm
mm
mm
mm
mm
TARGET DIMENSIONS
Type
Reference Target
Characterization Target #1
Characterization Target #2
Diameter
(Do)
84 mm
84 mm
35 mm
Thickness
(F)
16 mm
16 mm
7 mm
Tooth Width
(T)
9 mm
Valley Width
(PC - T)
13 mm
1 tooth, 180°
1 tooth, 180°
NOTE: Timing accuracy data is taken by recalibrating the unit at each air gap.
Valley Depth
(ht)
5 mm
5 mm
6 mm
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000

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ATS632LSC 전자부품, 판매, 대치품
ATS632LSC
HALL-EFFECT
GEAR-TOOTH SENSOR
SUBASSEMBLY
CRITERIA FOR DEVICE QUALIFICATION
All Allegro sensors are subjected to stringent qualification requirements prior to being released to production. To
become qualified, except for the destructive ESD tests, no failures are permitted.
Qualification Test
Test Method and
Test Conditions
Test Length
Samples
Per Lot
Comments
Temperature Humidity
Bias Life
Bias Life
(Surge Operating Life)
Autoclave, Unbiased
High-Temperature
(Bake) Storage Life
Temperature Cycle
JESD22-A101,
TA = 85°C, RH = 85%
JESD22-A108,
TA = 150°C, TJ = 165°C
JESD22-A108,
TA = 175°C, TJ = 190°C
JESD22-A102,
TA = 121°C, 15 psig
JESD22-A103,
TA = 170°C
JESD22-A104
1000 hrs
1000 hrs
168 hrs
96 hrs
1000 hrs
1000 cycles
48
48
48
48
48
48
Device biased for
minimum power
-55°C to +150°C
ESD,
Human Body Model
CDF-AEC-Q100-002
Pre/Post
Reading
3 per
test
Test to failure
All leads > 8 kV
APPLICATIONS INFORMATION
Recommended Evaluation Technique. The self-
calibrating feature of the ATS632LSC requires that a
special evaluation technique be used to measure its high-
accuracy performance capabilities. Installation inaccura-
cies are calibrated out at power on; hence, it is extremely
important that the device be re-powered at each air gap
when gathering timing accuracy data.
Self-Calibrating Functions. This subassembly is
designed to minimize performance variation caused by
the large air gap variations resulting from installation by
self-calibrating at power-on. It is also designed to mini-
mize performance variation caused by the smaller, slower
air gap changes resulting from temperature change and
gear run-out during continuous operation by updating the
self-calibration periodically (after every 64 output pulses) if
necessary. These two functions should be tested using
the following procedure.
1. Set the air gap to the desired value.
2. Power down and then power on the device.
3. Rotate the target at the desired speed.
4. Wait for calibration to complete (16 output pulses to
occur).
5. Monitor output for correct switching and measure
accuracy.
6. Repeat the above for multiple air gaps within the
operating range of the device.
7. This can be repeated over the entire temperature
range.

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