A1184LUA Allegro Microsystems Inc, A1184LUA Datasheet - Page 7

• Manufacturer Part Number: A1184LUA
• Description: IC SWITCH HALL EFFECT UNI 3-SIP
• Manufacturer: Allegro Microsystems Inc
• Type: Unipolar Switchr

Specifications of A1184LUA

• Sensing Range: 300G ~ 600G - Programmable, Fixed Release
• Voltage - Supply: 3.5 V ~ 24 V
• Current - Supply: 6.9mA
• Output Type: Digital, Differential
• Features: Programmable
• Operating Temperature: -40°C ~ 150°C
• Package / Case: 3-SIP
• Magnetic Type: Unipolar
• Operating Supply Voltage (min): 3.5V
• Operating Supply Voltage (typ): 5/9/12/15/18V
• Operating Supply Voltage (max): 24V
• Mag Sensor Operate Point (g): 600Gs
• Mag Sensor Hysteresis(g): 15Gs
• Package Type: Ultra Mini SIP
• Pin Count: 3
• Mounting: Through Hole
• Operating Temp Range: -40C to 150C
• Operating Temperature Classification: Automotive
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Current - Output (max): -
• Lead Free Status / RoHS Status: Not Compliant, Contains lead / RoHS non-compliant

A1184
Operation
The output, I
magnetic field at the Hall element exceeds the operate point
threshold, B
release point threshold, B
ferences between the magnetic operate and release point is called
the hysteresis of the device, B
OP
CC
. When the magnetic field is reduced to below the
, of the A1184 device switches high after the
RP
, the device output goes low. The dif-
HYS
. This built-in hysteresis allows
Figure 1. On the horizontal axis, the B+ direction indicates
increasing south polarity magnetic field strength, and the
B– direction indicates decreasing south polarity field strength
(including the case of increasing north polarity).
Chopper-Stabilized Unipolar Hall Effect Switch
I+
0
Functional Description
B–
Standard Two-Wire Field-Programmable
B
HYS
clean switching of the output even in the presence of external
mechanical vibration and electrical noise. (See figure 1).
B+
I
I
CC(H)
CC(L)
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
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