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PDF ATS622LSB Data sheet ( Hoja de datos )
| Número de pieza | ATS622LSB | |
| Descripción | TRUE ZERO-SPEED HALL-EFFECT GEAR-TOOTH SENSOR | |
| Fabricantes | Allegro MicroSystems | |
| Logotipo |  |
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ATS622LSB
TRUE ZERO-SPEED
HALL-EFFECT GEAR-TOOTH SENSOR
1
2
3
4
Pin 1 = Supply
Pin 2 = Output
Pin 3 = No Connection
Pin 4 = Ground
Dwg. AH-006-6
PRELIMINARY INFORMATION
(subject to change without notice)
October 20, 2000
ABSOLUTE MAXIMUM RATINGS
at TA = 25°C
Supply Voltage, VCC ........................ 26.5 V*
Reverse Supply Voltage, VRCC ............ -24 V
Continuous Output Current, IOUT ....... 20 mA
Reverse Output Current, IROUT .......... 50 mA
Package Power Dissipation,
PD .......................................... See Graph
Operating Temperature Range,
TA ............................. -40°C to +150°C*
Junction Temperature,
(continuous), TJ .......................... +165°C
(100 s), TJM ................................ +180°C
Storage Temperature, TS ................... +170°C
* Operation at increased supply voltages with
external circuitry is described in Applications
Information. Devices for operation at in-
creased temperatures are available on special
order.
The ATS622LSB is an optimized Hall-effect sensing integrated
circuit and magnet combination that provides a user-friendly solution
for true zero-speed digital gear-tooth sensing. The sensor subassembly
consists of a plastic shell that holds together a samarium-cobalt magnet,
a pole piece, and a Hall-effect sensor 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 integrated circuit incorporates a dual-element Hall-effect
sensor and signal processing that switches in response to differential
magnetic signals created by the ferrous gear teeth. The circuitry
contains a sophisticated digital circuit to eliminate magnet and system
offsets and to achieve true zero-speed operation (manufactured under
U.S. Pat. 5,917,320). A-to-D and D-to-A converters are used to adjust
the device gain at power on and to allow air-gap independent switching,
which greatly reduces vibration sensitivity of the device.
This sensor system is ideal for obtaining transmission and crank
information using gear-tooth-based configurations.
FEATURES AND BENEFITS
I Tight timing accuracy over temperature
I True zero-speed operation
I Air-gap independent switch points
I High vibration immunity
I Extremely precise duty cycle signal with temperature
I Large operating air gaps
I Defined power-on state
I Wide operating voltage range
I Digital output representing gear profile
I Single-chip sensing IC for high reliability
I Small mechanical size (9 mm diameter x 7 mm length)
I Optimized magnetic circuit
I <200 µs power-on time
I AGC and reference-adjust circuit
I Under-voltage lockout
Some restrictions may apply to certain types of sales.
Contact factory for details.
Always order by complete part number: ATS622LSB .
1 page  
ATS622LSB
TRUE ZERO-SPEED,
GEAR-TOOTH SENSOR
TYPICAL CHARACTERISTICS
12 12
10 10
8.0 8.0
6.0 6.0
4.0
2.0
0
0
B > BOP
TA = 150°C
TA = +25°C
TA = -40°C
5 10 15 20
SUPPLY VOLTAGE IN VOLTS
25 30
Dwg. GH-041-4
4.0
2.0
0
0
B < BRP
TA = 150°C
TA = +25°C
TA = -40°C
5 10 15 20
SUPPLY VOLTAGE IN VOLTS
25 30
Dwg. GH-041-3
1.2
1.0
TA = 150°C
TA = +25°C
TA = -40°C
0.8
0.6
0.4
0.2
0
-30 -25 -20 -15 -10 -5.0
0
REVERSE SUPPLY VOLTAGE IN VOLTS
Dwg. GH-031-2
350
300
250
200
150
100
50
0
0
B > BOP
TA = 150°C
TA = +25°C
TA = -40°C
5.0 10 15 20 25
OUTPUT SINK CURRENT IN mA
Dwg. GH-059-1
www.allegromicro.com
5
5 Page 
ATS622LSB
TRUE ZERO-SPEED,
GEAR-TOOTH SENSOR
MECHANICAL INFORMATION
Component
Sensor Face
Plastic Housing
Leads
Lead Finish
Lead Pull
Material
Thermoset epoxy
Thermoplastic PBT
Copper
90/10 tin/lead solder plate
—
Function
Maximum temperature
264 psi deflection temp. (DTUL)
66 psi deflection temp. (DTUL)
Approximate melting temperature
—
—
—
Units
170°C*
204°C
216°C
225°C
—
†
8N
* Temperature excursions to 225°C for 2 minutes or less are permitted.
† All industry-accepted soldering techniques are permitted for these subassemblies provided the indicated maximum
temperature for each component (e.g., sensor face, plastic housing) is not exceeded. Reasonable dwell times, which do
not cause melting of the plastic housing, should be used.
Sensor location (in millimeters)
(sensor location relative to package center is the design objective)
2.2 mm
A
Dwg. MH-018-4 mm
Lead cross section (in millimeters)
0.48
0.36
0.41
NOM.
0.38
NOM.
0.44
0.35
0.0076
MIN. PLATING
THICKNESS
Dwg. MH-019A mm
www.allegromicro.com
Allegro
11
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet ATS622LSB.PDF ] | |
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