A3282EUA-T

更新时间： 2024-01-25 05:12:59

品牌	Logo	应用领域
急速微 - ALLEGRO		/
页数	文件大小	规格书
11页	474K
描述
Chopper-Stabilized Hall Effect Latch

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A3282EUA-T 数据手册

A3282

Chopper-Stabilized Hall Effect Latch

The A3282 Hall-effect sensor is a temperature stable, stress-resistant latch. Supe-

rior high-temperature performance is made possible through an Allegro^®pat-

ented dynamic offset cancellation that utilizes chopper-stabilization. This method

reduces the offset voltage normally caused by device overmolding, temperature

dependencies, and thermal stress. The A3282 complements the current Allegro

family of chopper-stabilized latching sensors.

Package LH, 3-pin Surface Mount

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 circuit protected open-drain output. Advanced BiCMOS wafer fabrica-

tion processing is used to take advantage of low-voltage requirements, component

matching, very low input-offset errors, and small component geometries.

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 suf-

ﬁcient strength is present.

Package UA, 3-pin SIP

The A3282 is rated for operation between the ambient temperatures –40°C and

85°C for the E temperature range, and –40°C to 150°C for the L temperature

range. The two package styles available provide magnetically optimized solutions

for most applications. Package LH is an SOT23W, a miniature low-proﬁle sur-

face-mount package, while package UA is a three-lead ultramini SIP for through-

hole mounting. Each package is available in a lead (Pb) free version, with 100%

matte tin plated leadframes.

Features and Beneﬁts

ꢀChopper stabilization

ꢀOutput short circuit protection

ꢀSolid state reliability

ꢀSmall size

ABSOLUTE MAXIMUM RATINGS

ꢀSuperior temperature stability

ꢀExtremely low switchpoint drift

ꢀInsensitive to physical stress

Supply Voltage, V_CC..........................................28 V

Reverse-Supply Voltage, V_RCC........................–18 V

Output Off Voltage, V_OUT...............................26.5 V

Output Current, I_OUTSINK........... Internally Limited

Reverse-Output Current, I_ROUT....................–10 mA

Magnetic Flux Density, B .........................Unlimited

Operating Temperature

Ambient, T_A, Range E..................–40ºC to 85ºC

Ambient, T_A, Range L................–40ºC to 150ºC

Maximum Junction, T_J(MAX)......................165ºC

Storage Temperature, T_S..................–65ºC to 170ºC

ꢀRobust EMC capability

ꢀHigh ESD ratings (HBM)

ꢀReverse battery protection

Allegro MicroSystems, Inc.

115 Northeast Cutoff, Box 15036

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

www.allegromicro.com

A3282-DS

12 3 4 5 6 7...11

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