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PDF ATS640JSB Data sheet ( Hoja de datos )
| Número de pieza | ATS640JSB | |
| Descripción | TRUE ZERO-SPEED HALL-EFFECT GEAR-TOOTH SENSOR | |
| Fabricantes | Allegro MicroSystems | |
| Logotipo |  |
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ATS640JSB
TRUE ZERO-SPEED, SELF-CALIBRATING,
DIFFERENTIAL HALL-EFFECT GEAR-TOOTH SENSOR
FOR TWO-WIRE APPLICATIONS
1
2
3
4
Pin 1 = Supply
Pin 2 = Current Output
Pin 3 = No Connection
Pin 4 = Ground
Dwg. AH-006-3A
PRELIMINARY INFORMATION
(subject to change without notice)
October 20, 2000
The ATS640JSB Hall-effect gear-tooth sensor is a peak detecting device
that uses internal gain control to provide extremely stable duty cycles down to
zero speed. Each sensor subassembly consists of a high-temperature plastic
shell that holds together a samarium-cobalt magnet, a pole piece, and a true
zero-speed BiCMOS differential Hall-effect gear-tooth sensor 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 a ferrous target. The
sophisticated self-calibrating digital-processing circuitry normalizes the
internal gain of the device to minimize the effect of air gap variations. and to
reduce vibration sensitivity. The circuit eliminates magnet and system offsets
such as those caused by tilt yet provides zero-speed detection capabilities
without the associated running jitter inherent in classical digital solutions.
This sensor system is ideal for use in gathering speed, position, and timing
information using gear-tooth-based configurations. The ATS640JSB is
particularly suited to those applications that require extremely accurate duty
cycle control or accurate edge detection. The lower vibration sensitivity also
makes this device extremely useful for transmission speed sensing.
continued next page…
ABSOLUTE MAXIMUM RATINGS
at TA = 25°C
Supply Voltage, VCC .......................... 26.5 V*
Reverse Supply Voltage, VRCC .............. -24 V
Output OFF Voltage, VOUT ................... 26.5 V
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.
Some restrictions may apply to certain types of sales.
Contact factory for details.
Always order by complete part number: ATS640JSB .
1 page | ||
| Páginas | Total 4 Páginas | |
| PDF Descargar | [ Datasheet ATS640JSB.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| ATS640JSB | TRUE ZERO-SPEED/ SELF-CALIBRATING/ DIFFERENTIAL HALL-EFFECT GEAR-TOOTH SENSOR FOR TWO-WIRE APPLICATIONS | Allegro MicroSystems |
| ATS640JSB | TRUE ZERO-SPEED HALL-EFFECT GEAR-TOOTH SENSOR | Allegro MicroSystems |
| ATS640JSB | ZERO-SPEED/ SELF-CALIBRATING/ NON-ORIENTED/ HALL-EFFECT GEAR-TOOTH SENSOR | Allegro MicroSystems |
| ATS640JSB | TRUE ZERO-SPEED/ HALL-EFFECT ADAPTIVE GEAR-TOOTH SENSOR | Allegro MicroSystems |
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