Datasheet > A3290-1

A3290-1

更新时间： 2024-11-16 01:13:51

品牌	Logo	应用领域
急速微 - ALLEGRO		/
页数	文件大小	规格书
10页	466K
描述
Chopper-Stabilized, Precision Hall-Effect Latches for Consumer and Industrial Applications

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中文翻译

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数据手册

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A3290-1 数据手册

A3290 and A3291

Chopper-Stabilized, Precision Hall-Effect Latches for

Consumer and Industrial Applications

FEATURES AND BENEFITS

DESCRIPTION

• Symmetrical switchpoints

• Resistant to physical stress

• Superior temperature stability

• Output short-circuit protection

• Operation from unregulated supply

• Reverse battery protection

• Solid-state reliability

The A3290 and A3291 Hall-effect latches are extremely

temperature-stable and stress-resistant sensor ICs, especially

suited for operation over extended temperature ranges (up

to 125°C). Superior high-temperature performance is made

possible through dynamic offset cancellation, which reduces

the residual offset voltage normally caused by device package

overmolding,temperaturedependencies,andthermalstress.The

twodevicesareidenticalexceptfortheirmagneticswitchpoints.

They are not intended for automotive applications.

• Small package size

Bothdevicesinclude,onasinglesiliconchip,avoltageregulator,

a Hall voltage generator, a small-signal amplifier, chopper

stabilization, a Schmitt trigger, and a short-circuit protected

open-drainoutputtosinkupto25mA.Asouthpolaritymagnetic

field of sufficient strength is required to turn the output on. A

north polarity field of sufficient strength is necessary to turn

the output off. An onboard regulator permits operation with

supply voltages in the range of 3 to 24 V.

Packages:

3-Pin SOT23W

(suffix LH)

3-Pin SIP (suffix UA)

Two package styles provide a magnetically optimized package

for most applications: type LH is a miniature SOT23W low-

profile surface-mount package, and type UA is a three-pin

ultramini SIP for through-hole mounting. Both packages are

lead (Pb) free with 100% matte-tin leadframe plating.

Not to scale

(A3290)

(A3291)

VCC

Regulator

OUT

Low-Pass

Filter

Amp

Control

Current Limit

1Ω

GND

Functional Block Diagram

A3290-DS, Rev. 15

12 3 4 5 6 7...10

中文翻译

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与A3290-1相关器件

型号	品牌	获取价格	描述	数据表
A3290KLHLT-T	ALLEGRO	获取价格	Chopper Stabilized, Precision Hall Effect Latches for Consumer and Industrial Applications
A3290KLHLX-T	ALLEGRO	获取价格	Chopper-Stabilized, Precision Hall-Effect Latches for Consumer and Industrial Applications
A3290KUA-T	ALLEGRO	获取价格	Chopper Stabilized, Precision Hall Effect Latches for Consumer and Industrial Applications
A3291	ALLEGRO	获取价格	Chopper Stabilized, Precision Hall Effect Latches for Consumer and Industrial Applications
A3291KLHLT-T	ALLEGRO	获取价格	Chopper Stabilized, Precision Hall Effect Latches for Consumer and Industrial Applications
A3291KUA-T	ALLEGRO	获取价格	Chopper Stabilized, Precision Hall Effect Latches for Consumer and Industrial Applications
A3295	ALLEGRO	获取价格	Chopper Stabilized, Precision Hall Effect Switch
A3295_16	ALLEGRO	获取价格	Chopper Stabilized, Precision Hall Effect Switch for Consumer and Industrial Applications
A3295KLHLT-T	ALLEGRO	获取价格	Hall Effect Sensor, 0.5mT Min, 7.5mT Max, 30-60mA, Rectangular, Surface Mount, SOT-23W, 3
A3295KLHLX-T	ALLEGRO	获取价格	Hall Effect Sensor, 0.5mT Min, 7.5mT Max, 30-60mA, Rectangular, Surface Mount, SOT-23W, 3

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