ATS612LSB Allegro Microsystems Inc, ATS612LSB Datasheet - Page 2

• Manufacturer Part Number: ATS612LSB
• Description: IC SENSOR GEAR TOOTH 4LEAD
• Manufacturer: Allegro Microsystems Inc
• Type: Special Purposer

Specifications of ATS612LSB

• Sensing Range: *
• Voltage - Supply: 3.6 V ~ 24 V
• Current - Supply: 15mA
• Current - Output (max): 55mA
• Output Type: Digital, Open Collector
• Features: Gear Tooth Type
• Operating Temperature: -40°C ~ 150°C
• Package / Case: 4-SIP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Supply Voltage, V
Reverse Supply Voltage, V
Output OFF Voltage, V
Continuous Output Current, I
Reverse Output Current, I
Package Power Dissipation,
Operating Temperature Range,
Storage Temperature, T
* Operation at increased supply voltages with
external circuitry is described in Applications
Information. Devices for operation at increased
temperatures are available on special order.
† Output is current limited at 25 mA to 55 mA.
Continued operation in this mode can cause
excessive device heating and failure. See graph,
next page.
Pin 1 = Supply
Pin 2 = Output
Pin 3 = Capacitor
Pin 4 = Ground
4
ABSOLUTE MAXIMUM RATINGS
3
over operating temperature range
P
T
2
A
D
1
.......................................... See Graph
................................. -40
CC
............................... 24 V*
OUT
S
ROUT
.................. +170
....................... 24 V
RCC
OUT
.............. -16 V
............ 50 mA
°
C to +150
...... 25 mA†
Dwg. AH-006
°
C*
°
C
HALL-EFFECT GEAR-TOOTH SENSOR IC
ATS612LSB
uses automatic gain control to provide extremely accurate gear edge
detection down to low operating speeds. Each package consists
of a high-temperature plastic shell that holds together a samarium-
cobalt pellet, a pole piece, and a 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.
based. The device incorporates a dual-element Hall IC that switches in
response to differential magnetic signals created by ferrous targets.
The sophisticated processing circuitry contains a 5-bit A/D converter
that self-calibrates (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 RPM.
tion, and timing information using gear-tooth-based configurations. The
ATS612LSB is particularly suited to those applications that require
extremely accurate duty cycle control or accurate edge detection such
as in automotive crank shaft applications. The lower vibration sensitiv-
ity also makes this device extremely useful for transmission speed
sensing applications.
crank angle, transmission speed, cam angle.
Always order by complete part number: ATS612LSB .
PEAK-DETECTING, DIFFERENTIAL
The ATS612LSB gear-tooth sensor IC is a peak detecting device that
The technology used for this device is Hall-effect
These devices are ideal for use in gathering speed, posi-
ATS612LSB: Large/small-tooth gear-position sensing —
DYNAMIC, SELF-CALIBRATING,
continued next page…