參數(shù)資料
型號: A1193LUA-T
廠商: Allegro Microsystems Inc
文件頁數(shù): 7/18頁
文件大小: 383K
描述: IC SW HALL EFFECT CHOPPER 3SIP
特色產(chǎn)品: A119x Switches
標準包裝: 4,000
類型: 單極開關
電源電壓: 3 V ~ 24 V
電流 - 電源: 6.9mA
輸出類型: 數(shù)字
特點: 可編程
工作溫度: -40°C ~ 150°C
封裝/外殼: 3-SSIP
供應商設備封裝: 3-SIP
包裝: 散裝
其它名稱: 620-1410
Functional Description
B
HYS
I
CC(H)
I
CC(L)
B+
B
I+
0
(A) Hysteresis curve for A1190 and A1192
B
HYS
I
CC(H)
I
CC(L)
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, I
CC
, switches low after the mag-
netic field at the Hall sensor IC exceeds the operate point thresh-
old, B
OP
. When the magnetic field is reduced to below the release
point threshold, B
RP
, 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, B
OP
. When the
magnetic field is reduced to below the release point threshold,
B
RP
, the device output goes low (panel B).
The difference between the magnetic operate and release points
is called the hysteresis of the device, B
HYS
. 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, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
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