A3213

更新时间： 2024-11-06 12:24:03

品牌	Logo	应用领域
急速微 - ALLEGRO		开关
页数	文件大小	规格书
11页	326K
描述
Micropower Ultra-Sensitive Hall-Effect Switches

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数据手册

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A3213 数据手册

A3213 and A3214

Micropower Ultra-Sensitive Hall-Effect Switches

Features and Benefits

Description

▪ Micropower operation

The A3213 and A3214 integrated circuits are ultra-sensitive,

pole independent Hall-effect switches with a latched digital

output. They are especially suited for operation in battery-

operated, hand-held equipment such as cell and cordless

telephones and palmtop computers. A 2.4 to 5.5 V operation

and a unique clocking scheme reduce the average operating

powerrequirements:theA3213to825μW,theA3214to14μW

(typical,at2.75V).Exceptforoperatingdutycycleandaverage

operating current, the A3213 and A3214 are identical.

▪ Operate with north or south pole

▪ 2.4 to 5.5 V battery operation

▪ Chopper stabilized

▫ Superior temperature stability

▫ Extremely low switchpoint drift

▫ Insensitive to physical stress

▪ High ESD protection

▪ Solid state reliability

▪ Small size

Unlike other Hall-effect switches, either a north or south pole

of sufficient strength will turn the output on; in the absence of

a magnetic field, the output is off. The polarity independence

and minimal power requirement allows these devices to easily

replace reed switches for superior reliability and ease of

manufacturing, while eliminating the requirement for signal

conditioning.

▪ Easily assembly into applications due to magnetic pole

independence

Packages

3 lead ultramini SIP

(suffix UA)

Improved stability is made possible through chopper

stabilization (dynamic offset cancellation), which reduces the

residualoffsetvoltagenormallycausedbydeviceovermolding,

temperature dependencies, and thermal stress.

These devices include, on a single silicon chip, a Hall-voltage

Continued on the next page…

3 pin surface mount

SOT23-W (suffix LH)

Not to scale

Functional Block Diagram

SUPPLY

SWITCH

TIMING

LOGIC

OUTPUT

GROUND

Dwg. FH-020-5

27622.62-DS Rev. Y

12 3 4 5 6 7...11

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与A3213相关器件

型号	品牌	获取价格	描述	数据表
A3213_16	ALLEGRO	获取价格	Micropower Ultra-Sensitive Hall-Effect Switches
A3213ELHLT	ALLEGRO	获取价格	MICROPOWER, ULTRA-SENSITIVE HALL-EF FECT SWITCHES
A3213ELHLT-T	ALLEGRO	获取价格	MICROPOWER, ULTRA-SENSITIVE HALL-EF FECT SWITCHES
A3213ELHLX-T	ALLEGRO	获取价格	Micropower Ultra-Sensitive Hall-Effect Switches
A3213EUA	ALLEGRO	获取价格	MICROPOWER, ULTRA-SENSITIVE HALL-EF FECT SWITCHES
A3213EUA-LC	ALLEGRO	获取价格	Analog Circuit, 1 Func, BICMOS, PSIP3, SIP-3
A3213EUA-LC-T	ALLEGRO	获取价格	Sensor/Transducer, Open-drain, BICMOS, 3 Pin, Plastic/epoxy,
A3213EUA-T	ALLEGRO	获取价格	MICROPOWER, ULTRA-SENSITIVE HALL-EF FECT SWITCHES
A3213LLHLT	ALLEGRO	获取价格	MICROPOWER, ULTRA-SENSITIVE HALL-EF FECT SWITCHES
A3213LLHLT-T	ALLEGRO	获取价格	MICROPOWER, ULTRA-SENSITIVE HALL-EF FECT SWITCHES