Datasheet > A3282_06

A3282_06

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
急速微 - ALLEGRO		/
页数	文件大小	规格书
11页	355K
描述
Chopper-Stabilized Hall Effect Latch

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A3282_06 数据手册

A3282

Chopper-Stabilized Hall-Effect Latch

Features and Benefits

▪ Chopper stabilization

Description

The A3282 Hall-effect sensor is a temperature stable, stress-

resistant latch. Superior high-temperature performance

is made possible through an Allegro^®patented dynamic

offset cancellation that utilizes chopper-stabilization. This

method reduces the offset voltage normally caused by device

overmolding, temperature dependencies, and thermal stress.

TheA3282complementsthecurrentAllegrofamilyofchopper-

stabilized latching sensors.

▫ Superior temperature stability

▫ Extremely low switchpoint drift

▫ Insensitive to physical stress

▪ Reverse battery protection

▪ Output short circuit protection

▪ Solid state reliability

▪ Small size

▪ Robust EMC capability

▪ High ESD ratings (HBM)

The A3282 includes the following on a single silicon chip:

voltage regulator, Hall-voltage generator, small-signal

amplifier, chopper stabilization, Schmitt trigger, and a short

circuitprotectedopen-drainoutput.AdvancedBiCMOSwafer

fabricationprocessingisusedtotakeadvantageoflow-voltage

requirements, component matching, very low input-offset

errors, and small component geometries.

Packages: 3 pin SOT23W (suffix LH), and

3 pin SIP (suffix UA)

This device requires the presence of both south and north

polarity magnetic fields for operation. In the presence of a

south polarity field of sufficient strength, the device output

latches on, and only switches off when a north polarity field

of sufficient strength is present.

Continued on the next page…

Not to scale

Functional Block Diagram

VCC

Regulator

To All Subcircuits

VOUT

Amp

Control

Current Limit

<1Ω

GND

A3282-DS, Rev. 3

12 3 4 5 6 7...11

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