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參數資料
| 型號： | A1143LUA-T |
| 廠商： | Allegro Microsystems Inc |
| 文件頁數： | 8/15頁 |
| 文件大?。?/td> | 487K |
| 描述： | IC SWITCH HALL EFFECT UNI 3-SIP |
| 產品培訓模塊： | Current Sensor |
| 標準包裝： | 500 |
| 傳感范圍： | 110G 跳閘，45G 釋放 |
| 類型： | 單極開關 |
| 電源電壓： | 3.5 V ~ 24 V |
| 電流 - 電源： | 6.9mA |
| 輸出類型： | 數字式，開漏極 |
| 特點： | 穩(wěn)壓電壓 |
| 工作溫度： | -40°C ~ 150°C |
| 封裝/外殼： | 3-SIP |
| 供應商設備封裝： | 3-SIP |
| 包裝： | 散裝 |
Sensitive Two-Wire Chopper-Stabilized
Unipolar Hall Effect Switches
A1140, A1142, and
A1143
7
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Functional Description
B
HYS
I
CC(H)
I
CC(L)
B+
B
I+
0
(A) A1140, A1142
B
HYS
I
CC(H)
I
CC(L)
B+
I+
B
0
(B) A1143
Operation
The output, I
CC
, of the A1140 and A1142 devices switch low
after the magnetic field at the Hall element exceeds the oper-
ate point threshold, B
OP
. When the magnetic field is reduced to
below the release point threshold, B
RP
, the device output goes
high. The differences between the magnetic operate and release
point is called the hysteresis of the device, B
HYS
. This built-in
hysteresis allows clean switching of the output even in the pres-
ence of external mechanical vibration and electrical noise. The
A1143 device switches with opposite polarity for similar B
OP
and B
RP
values, in comparison to the A1140 and A1142 (see
figure 1).
Figure 1. Alternative switching behaviors are available in the A114x 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).
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相關代理商/技術參數 |
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