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Numéro de référence | ATS612JSB | ||
Description | TRUE ZERO-SPEED/ HALL-EFFECT ADAPTIVE GEAR-TOOTH SENSOR | ||
Fabricant | Allegro MicroSystems | ||
Logo | |||
ATS612JSB
DYNAMIC, SELF-CALIBRATING, PEAK-DETECTING,
ATS612JSBDIFFERENTIAL HALL-EFFECT GEAR-TOOTH SENSOR
PRELIMINARY INFORMATION
(subject to change without notice)
November 20, 1998
1
2
3
4
Pin 1 = Supply
Pin 2 = Output
Pin 3 = Capacitor
Pin 4 = Ground
Dwg. AH-006
ABSOLUTE MAXIMUM RATINGS
over operating temperature range
Supply Voltage, VCC ............................... 24 V*
Reverse Supply Voltage, VRCC .............. -16 V
Output OFF Voltage, VOUT ....................... 24 V
Continuous Output Current,
IOUT ............................ Internally Limited
Reverse Output Current, IROUT ............ 50 mA
Package Power Dissipation,
PD .......................................... See Graph
Operating Temperature Range,
TA ................................. -40°C to +115°C*
Storage Temperature, TS .................. +170°C
* Operation at increased supply voltages with
external circuitry is described in Applications
Information. Devices for operation at increased
temperatures are available on special order.
DYNAMIC, SELF-CALIBRATING,
PEAK-DETECTING, DIFFERENTIAL
HALL-EFFECT GEAR-TOOTH SENSOR
The ATS612JSB dynamically-coupled gear tooth sensor is a peak
detecting device that uses gain control to provide extremely accurate
gear edge detection down to low operating speeds. Each sensor
subassembly consists of a high-temperature plastic shell that holds
together a samarium-cobalt magnet, a pole piece, and a dynamically-
coupled differential open-collector Hall IC that has been optimized to
the magnetic circuit. This small package can be easily assembled and
used in conjunction with a wide variety of gear shapes and sizes.
The gear-sensing technology used for this sensor subassembly is
Hall-effect based. The sensor incorporates a dual-element Hall IC that
switches in response to differential magnetic signals created by ferrous
targets. The sophisticated processing circuitry contains a self-calibrat-
ing 5-bit A/D converter that normalizes the internal gain of the device to
minimize the effect of air gap variations. The patented peak-detecting
filter circuit eliminates magnet and system offsets and has the ability to
discriminate relatively fast changes such as those caused by tilt, gear
wobble, and eccentricities yet provides stable operation to extremely
low RPMs.
These sensor systems are ideal for use in gathering speed, posi-
tion, and timing information using gear-tooth-based configurations. The
ATS612JSB is particularly suited to those applications that require
extremely accurate duty cycle control or accurate edge detection similar
to crank shaft applications. The lower vibration sensitivity also makes
this device extremely useful for transmission speed sensing.
ATS612JSB: Large- or small-tooth gear-position sensing —
crank angle, transmission speed, cam angle.
continued next page…
Always order by complete part number: ATS612JSB .
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Pages | Pages 16 | ||
Télécharger | [ ATS612JSB ] |
No | Description détaillée | Fabricant |
ATS612JSB | DYNAMIC/ SELF-CALIBRATING/ PEAK-DETECTING/ DIFFERENTIAL HALL-EFFECT GEAR-TOOTH SENSOR | Allegro MicroSystems |
ATS612JSB | TRUE ZERO-SPEED HALL-EFFECT GEAR-TOOTH SENSOR | Allegro MicroSystems |
ATS612JSB | ZERO-SPEED/ SELF-CALIBRATING/ NON-ORIENTED/ HALL-EFFECT GEAR-TOOTH SENSOR | Allegro MicroSystems |
ATS612JSB | TRUE ZERO-SPEED/ HALL-EFFECT ADAPTIVE GEAR-TOOTH SENSOR | Allegro MicroSystems |
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