A1184_06 ALLEGRO [Allegro MicroSystems], A1184_06 Datasheet - Page 6

• Manufacturer Part Number: A1184_06
• Description: Standard Two-Wire Field-Programmable Chopper-Stabilized Unipolar Hall-Effect Switches
• Manufacturer: ALLEGRO [Allegro MicroSystems]

A1184
Operation
The output, I
magnetic field at the Hall sensor 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, Box 15036
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 [phone]
www.allegromicro.com
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