参数资料
型号: A1190LUA-T
元件分类: 磁阻传感器
英文描述: MAGNETIC FIELD SENSOR-HALL EFFECT, 1-20mT, RECTANGULAR, THROUGH HOLE MOUNT
封装: 1.50 X 4 MM, 3 MM HEIGHT, LEAD FREE, SIP-3
文件页数: 16/18页
文件大小: 427K
代理商: A1190LUA-T
Functional Description
B
OP
B
RP
BHYS
ICC(H)
I CC
ICC(L)
Switch
to
Low
Switch
to
High
B+
B–
I+
0
(A) Hysteresis curve for A1190 and A1192
B
OP
B
RP
BHYS
ICC(H)
I CC
ICC(L)
Switch
to
High
Switch
to
Low
B+
I+
B–
0
(B) Hysteresis curve for A1193
Figure 1. Alternative switching behaviors are available in the A119x device family. 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).
The A1190 and A1192 output, ICC, switches low after the mag-
netic field at the Hall sensor IC exceeds the operate point thresh-
old, BOP. When the magnetic field is reduced to below the release
point threshold, BRP, the device output goes high. This is shown
in figure 1, panel A.
In the case of the reverse output polarity, as in the A1193, the
device output switches high after the magnetic field at the Hall
sensor IC exceeds the operate point threshold, BOP. When the
magnetic field is reduced to below the release point threshold,
BRP, the device output goes low (panel B).
The difference between the magnetic operate and release points
is called the hysteresis of the device, BHYS. This built-in hyster-
esis allows clean switching of the output even in the presence of
external mechanical vibration and electrical noise.
Programmable, Chopper-Stabilized,
Two Wire Hall-Effect Switches
A1190, A1192,
and A1193
7
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
相关PDF资料
PDF描述
A1192LUA-T MAGNETIC FIELD SENSOR-HALL EFFECT, 1-20mT, RECTANGULAR, THROUGH HOLE MOUNT
A1210LLHLT-T MAGNETIC FIELD SENSOR-HALL EFFECT, -15-15mT, 400mV, RECTANGULAR, SURFACE MOUNT
A1211ELHLT-T MAGNETIC FIELD SENSOR-HALL EFFECT, -18-18mT, 400mV, RECTANGULAR, SURFACE MOUNT
A1212EUA-T MAGNETIC FIELD SENSOR-HALL EFFECT, -17.5-17.5mT, 400mV, RECTANGULAR, THROUGH HOLE MOUNT
A1213ELHLT-T MAGNETIC FIELD SENSOR-HALL EFFECT, -20-20mT, 400mV, RECTANGULAR, SURFACE MOUNT
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