A1142LLHLT

更新时间： 2024-01-16 04:59:40

品牌	Logo	应用领域
急速微 - ALLEGRO		开关
页数	文件大小	规格书
13页	344K
描述
Analog Circuit, 1 Func, BICMOS, PDSO3, MINIATURE, SOT-23W, 3 PIN

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A1142LLHLT 技术参数

Sensitive Two-Wire Chopper-Stabilized

Unipolar Hall Effect Switches

A1140, A1141,

A1142, and A1143

Functional Description

Operation

The output, I_CC, of the A1140 and A1142 devices switch low

after the magnetic field at the Hall sensor 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

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

presence of external mechanical vibration and electrical noise.

The A1141 and A1143 devices switch with opposite polarity for

similar B_OPand B_RPvalues, in comparison to the A1140 and

A1142 (see figure 1).

I+

I_CC(H)

I_CC(L)

B+

B–

B+

B–

B_HYS

(A) A1140, A1142

(B) A1141, A1143

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).

Allegro MicroSystems, Inc.

115 Northeast Cutoff, Box 15036

Worcester, Massachusetts 01615-0036 (508) 853-5000

www.allegromicro.com

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型号	品牌	描述	获取价格	数据表
A1142LLHLT-T	ALLEGRO	Sensitive Two-Wire Chopper-Stabilized Unipolar Hall Effect Switches	获取价格
A1142LUA	ALLEGRO	Sensitive Two-Wire Chopper-Stabilized Unipolar Hall-Effect Switches	获取价格
A1142LUA-T	ALLEGRO	Sensitive Two-Wire Chopper-Stabilized Unipolar Hall Effect Switches	获取价格
A1142LUATI	ALLEGRO	Analog Circuit, 1 Func, BICMOS, PSIP3, ULTRA MINI, SIP-3	获取价格
A1142LUATI-T	ALLEGRO	Analog Circuit, 1 Func, BICMOS, PSIP3, ULTRA MINI, LEAD FREE, SIP-3	获取价格
A1142LUATI-T4	ALLEGRO	Sensitive Two-Wire Chopper-Stabilized Unipolar Hall Effect Switches	获取价格