Datasheet > 传感器/换能器 > 磁场传感器> A1122LLHLX-T

A1122LLHLX-T

更新时间： 2024-02-22 18:58:22

品牌	Logo	应用领域
急速微 - ALLEGRO		开关
页数	文件大小	规格书
14页	326K
描述
Chopper Stabilized Precision Hall Effect Switches

阅读下载

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

A1122LLHLX-T 数据手册

A1120, A1121, A1122, and A1125

Chopper Stabilized Precision Hall Effect Switches

Features and Benefits

Description

▪ Unipolar switchpoints

The A1120, A1121, A1122, and A1125 Hall-effect, unipolar

switches are extremely temperature-stable and stress-resistant

sensor ICs, especially suited for operation over extended

temperature ranges to 150°C. Superior high-temperature

performance is made possible through dynamic offset

cancellation,whichreducestheresidualoffsetvoltagenormally

causedbydeviceovermolding,temperaturedependencies,and

thermal stress.

▪ Resistant to physical stress

▪ Superior temperature stability

▪ Output short-circuit protection

▪ Operation from unregulated supply

▪ Reverse battery protection

▪ Solid-state reliability

▪ Small package sizes

Eachdeviceincludesonasinglesiliconchipavoltageregulator,

Hall-voltage generator, small-signal amplifier, chopper

stabilization, Schmitt trigger, and a short-circuit protected

open-drain output to sink up to 25 mA.

Packages:

An on-board regulator permits operation with supply voltages

of 3 to 24 V. The advantage of operating down to 3 V is that

the device can be used in 3 V applications or with additional

external resistance in series with the supply pin for greater

protection against high voltage transient events.

For the A1120, A1121, and A1122, a south pole of sufficient

strength turns the output on. Removal of the magnetic field

turns the output off. The A1125 is complementary, in that for

these devices, a south pole turns the A1125 output off, and

removal of the magnetic field turns the output on.

3-pin SOT23W (suffix LH)

3-pin SIP (suffix UA)

Not to scale

Twopackagestylesprovideamagneticallyoptimizedpackage

formostapplications.PackagetypeLHisamodifiedSOT23W,

surfacemountpackage,whileUAisathree-leadultra-miniSIP

forthrough-holemounting. Eachpackagetypeislead(Pb)free

(suffix, –T), with a 100% matte tin plated leadframe.

Functional Block Diagram

VCC

Regulator

To All Subcircuits

VOUT

Low-Pass

Filter

Amp

Control

Current Limit

GND

A1120-DS, Rev. 12

12 3 4 5 6 7...14

下载PDF

与A1122LLHLX-T相关器件

型号	品牌	描述	获取价格	数据表
A1122LUA-T	ALLEGRO	Chopper Stabilized Precision Hall Effect Switches	获取价格
A1122RW	MPD	Miniature, 10W DIP Single & Dual Output DC/DC Converters	获取价格
A1123LLHLT-T2	ALLEGRO	Chopper-Stabilized Precision Hall-Effect Switches	获取价格
A1123LLHLX-T	ALLEGRO	Chopper-Stabilized Precision Hall-Effect Switches	获取价格
A1123LUA-T	ALLEGRO	Chopper-Stabilized Precision Hall-Effect Switches	获取价格
A1123RW	MPD	Miniature, 10W DIP Single & Dual Output DC/DC Converters	获取价格