Datasheet > ALS31000LLHALX

ALS31000LLHALX

更新时间： 2024-11-11 01:18:35

品牌	Logo	应用领域
急速微 - ALLEGRO		/
页数	文件大小	规格书
10页	748K
描述
Unidirectional Linear Hall-Effect Sensor IC with Analog Output, in Miniature Low-Profile Surface-Mount Package

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ALS31000LLHALX 数据手册

ALS31000

Unidirectional Linear Hall-Effect Sensor IC with Analog Output,

in Miniature Low-Profile Surface-Mount Package

FEATURES AND BENEFITS

DESCRIPTION

• 5 V supply operation

New applications for linear output Hall-effect sensors, such

asdisplacementandangularposition, requirehigheraccuracy

and smaller package sizes. The Allegro ALS31000 linear

Hall-effect sensor IC has been designed specifically to meet

both requirements.

• QVO temperature coefficient programmed at Allegro^™for

improved accuracy

• Miniature package options

• High-bandwidth, low-noise analog output

• High-speed chopping scheme minimizes QVO drift across

operating temperature range

• Temperature-stable quiescent voltage output and sensitivity

• Precise recoverability after temperature cycling

• Output voltage clamps provide short-circuit diagnostic

capabilities

The accuracy of this device is enhanced via end-of-line

optimization. TheALS31000 features non-volatile memory to

optimize device sensitivity and the quiescent voltage output

(QVO: output in the absence of a magnetic field) for a given

application or circuit. Optimized performance is sustained

across the full operating temperature range by programming

the temperature coefficient for both sensitivity and QVO at

Allegro end-of-line test.

• Undervoltage lockout (UVLO)

• Wide ambient temperature range: –40°C to 150°C

• Immune to mechanical stress

ThisratiometricHall-effectsensorICprovidesavoltageoutput

proportionaltotheappliedmagneticfield.Thequiescentvoltage

output is adjusted to around 0.7 V and the output sensitivity

is set to 2.4 mV/G.

• Enhanced EMC performance for stringent automotive

applications

Package:

The features of this linear device make it ideal for use in

automotiveandindustrialapplicationsrequiringhighaccuracy

and operation across an extended temperature range, –40°C

to 150°C.

3-pin SOT23-W

2 mm × 3 mm × 1 mm

(suffix LH)

Each BiCMOS monolithic circuit integrates: a Hall element,

temperature-compensating circuitry to reduce the intrinsic

sensitivity drift of the Hall element, a small-signal high-gain

amplifier, a clamped low-impedance output stage, and a

proprietary dynamic offset cancellation technique.

Not to scale

Continued on the next page…

Functional Block Diagram

VCC

VOUT

Sensitivity and

Sensitivity TC

Offset and

Offset TC

BYPASS

GND

ALS31000-DS, Rev. 2

MCO-0000575

February 19, 2019

12 3 4 5 6 7...10

中文翻译

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ALS31313	ALLEGRO	获取价格	Automotive Grade, 3-D Linear Hall-Effect Sensor with I2C Output and Advanced Low Power Man

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