A3212EEHLT-T

更新时间： 2024-09-12 22:26:39

品牌	Logo	应用领域
急速微 - ALLEGRO		开关
页数	文件大小	规格书
13页	381K
描述
MICROPOWER, ULTRA-SENSITIVE HALL-EF FECT SWITCH

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A3212EEHLT-T 数据手册

A3212

MICROPOWER, ULTRA-SENSITIVE

HALL-EFFECT SWITCH

The A3212 integrated circuit is an ultra-sensitive, pole independent Hall-effect

switch with a latched digital output. This sensor is especially suited for opera-

tion in battery-operated, hand-held equipment such as cellular and cordless

telephones, pagers, and palmtop computers. A 2.5 volt to 3.5 volt operation and a

unique clocking scheme reduce the average operating power requirements to less

than 15 µW with a 2.75 volt supply.

2 x 2 mm MLPD

Package A3212EELLT-T

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 allow these

devices to easily replace reed switches for superior reliability and ease of manu-

facturing, while eliminating the requirement for signal conditioning.

Improved stability is made possible through chopper stabilization (dynamic off-

set cancellation), which reduces the residual offset voltage normally caused by

device overmolding, temperature dependencies, and thermal stress.

This device includes on a single silicon chip a Hall-voltage generator, small-sig-

nal amplifier, chopper stabilization, a latch, and a MOSFET output. Advanced

BiCMOS processing is used to take advantage of low-voltage and low-power

requirements, component matching, very low input-offset errors, and small com-

ponent geometries.

Approximate actual size

Four package styles provide magnetically optimized solutions for most appli-

cations. Miniature low-profile surface-mount package types EH and EL

(0.75 and 0.50 mm nominal height) are leadless, LH is a leaded low-profile

SMD, and UA is a three-lead SIP for through-hole mounting. Each package is

available in a lead (Pb) free version (suffix, –T) with 100% matte tin plated lead-

frame. EL package for limited release, engineering samples available.

ABSOLUTE MAXIMUM RATINGS

Supply Voltage, V_DD.............................. 5 V

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

Output Off Voltage, V_OUT...................... 5 V

Output Current, I_OUT........................... 1 mA

Junction Temperature, T_J................ +170°C

FEATURES

■

Micropower Operation

Operation with North or South Pole

2.5 V to 3.5 V Battery Operation

■

Operating Temperature, T_A

Range 'E-' .................... -40°C to +85°C

Range 'L-' .................. -40°C to +150°C

Chopper Stabilized

Superior Temperature Stability

Extremely Low Switch-Point Drift

Insensitive to Physical Stress

Storage Temperature Range,

T_S.............................. -65°C to +170°C

■

ESD Protected to 5 kV

Solid-State Reliability

Caution: These CMOS devices have input

static protection (Class 3) but are still sus-

ceptible to damage if exposed to extremely

high static electrical charges.

■

Small Size

Easily Manufacturable with Magnet Pole Independence

12 3 4 5 6 7...13

中文翻译

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A3212EEHLT-T 替代型号

型号	品牌	替代类型	描述	数据表
A3212EELLT-T	ALLEGRO	完全替代	MICROPOWER, ULTRA-SENSITIVE HALL-EF FECT SWITCH
A3212EEHLT	ALLEGRO	完全替代	MICROPOWER, ULTRA-SENSITIVE HALL-EF FECT SWITCH

与A3212EEHLT-T相关器件

型号	品牌	获取价格	描述	数据表
A3212EELLT-T	ALLEGRO	获取价格	MICROPOWER, ULTRA-SENSITIVE HALL-EF FECT SWITCH
A3212ELH	SANKEN	获取价格	Analog Circuit, 1 Func, BICMOS, PDSO3, MINIATURE, LOW PROFILE, SMT-3
A3212ELH	ALLEGRO	获取价格	Analog Circuit, 1 Func, BICMOS, PDSO3, DSO-3
A3212ELHLT	ALLEGRO	获取价格	MICROPOWER, ULTRA-SENSITIVE HALL-EF FECT SWITCH
A3212ELHLT-T	ALLEGRO	获取价格	MICROPOWER, ULTRA-SENSITIVE HALL-EF FECT SWITCH
A3212ELHLX-T	ALLEGRO	获取价格	Analog Circuit,
A3212EUA	ALLEGRO	获取价格	MICROPOWER, ULTRA-SENSITIVE HALL-EF FECT SWITCH
A3212EUA	SANKEN	获取价格	Analog Circuit, 1 Func, BICMOS, PSIP3, ULTRA MINI, SIP-3
A3212EUA-C	ALLEGRO	获取价格	Sensor/Transducer, Open-drain, BICMOS, 3 Pin, Plastic/epoxy,
A3212EUA-LC	SANKEN	获取价格	Analog Circuit, 1 Func, BICMOS, PSIP3, ULTRA MINI, SIP-3

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