A1645LK-I2 Allegro Microsystems Inc, A1645LK-I2 Datasheet - Page 6

• Manufacturer Part Number: A1645LK-I2
• Description: IC SENSOR HALL EFFECT AC 4-SIP
• Manufacturer: Allegro Microsystems Inc
• Type: Special Purposer

Specifications of A1645LK-I2

• Sensing Range: 120mV Trip, 120mV Release
• Voltage - Supply: 4 V ~ 24 V
• Current - Supply: 8.4mA
• Output Type: Digital, Open Collector
• Operating Temperature: -40°C ~ 150°C
• Package / Case: 4-SIP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Current - Output (max): -
• Features: -

A1642
The colored area in the chart above shows the region of allow-
able air gap movement within which the device will continue
output switching. The output duty cycle is wholly dependent on
the target’s magnetic signature across the air gap range of move-
ment, and may not always be within specifi cation throughout the
entire operating region (to AG
(a)
(OPmax)
A1642
Peak-Detecting Sensor IC with Continuous Calibration
*Data based on study performed using spur gear reference target 60-0, and
applicable to ring magnet targets with similar magnetic characteristics.
Characteristic Allowable Air Gap Movement
).
-0.2
1.2
1.0
0.8
0.6
0.4
0.2
0
0
TEAG
Two-Wire True Zero-Speed Miniature Differential
0.2
Allowable Air Gap Movement from TEAG
CAL
0.4
(b)
0.6
ΔTEAG
0.8
A1642
IN
(mm)
1.0
The axis parameters for the chart are defi ned in the drawings
below. As an example, assume the case where the air gap is
allowed to vary from the nominal installed air gap (TEAG
panel a) within the range defi ned by an increase of TEAG
0.35 mm (shown in panel b), and a decrease of TEAG
0.65 mm (shown in panel c). This case is plotted with an “x” in
the chart above.
1.2
TEAG
1.4
CAL
OUT
*
1.6
(c)
1.8
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
A1642
TEAG
IN
IN
CAL
=
OUT
,
=
6