Datasheet > A3212LLHLX-T

A3212LLHLX-T

更新时间： 2024-02-03 05:22:02

品牌	Logo	应用领域
急速微 - ALLEGRO		/
页数	文件大小	规格书
13页	472K
描述
Analog Circuit,

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技术参数
数据手册

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A3212LLHLX-T 技术参数

是否Rohs认证：	符合	生命周期：	Active
包装说明：	,	Reach Compliance Code：	compliant
风险等级：	5.56	模拟集成电路 - 其他类型：	ANALOG CIRCUIT
湿度敏感等级：	1	峰值回流温度（摄氏度）：	NOT SPECIFIED
处于峰值回流温度下的最长时间：	NOT SPECIFIED	Base Number Matches：	1

A3212LLHLX-T 数据手册

A3211 and A3212

Micropower, Ultrasensitive

Hall-Effect Switches

FEATURES AND BENEFITS

DESCRIPTION

• AEC-Q100 automotive qualified

• Micropower operation

• Operation with north or south pole

• 2.5 to 3.5 V battery operation

• Chopper stabilized

□ Superior temperature stability

□ Extremely low switchpoint drift

□ Insensitive to physical stress

• High ESD protection

TheA3211andA3212integratedcircuitsareultrasensitive,pole

independent Hall-effect switches with latched digital output.

These devices are especially suited for operation in battery-

operated, hand-held equipment such as cellular and cordless

telephones, pagers, and palmtop computers. A 2.5 to 3.5 V

operation and a unique clocking scheme reduce the average

operating power requirements to less than 15 μW with a

2.75 V supply.

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

of sufficient strength will turn the output on in the A3212,

and in the absence of a magnetic field, the output is off. The

A3211providesaninvertedoutput.Thepolarityindependence

and minimal power requirements allow these devices to easily

replace reed switches for superior reliability and ease of

manufacturing, while eliminating the requirement for signal

conditioning.

• Solid-state reliability

• Small size

• Easily manufacturable with magnet pole independence

PACKAGES:

DFN (EL)

Improved stability is made possible through chopper

stabilization (dynamic offset cancellation), which reduces the

residualoffsetvoltagenormallycausedbydeviceovermolding,

temperature dependencies, and thermal stress.

DFN (EH)

This device includes on a single silicon chip a Hall-voltage

generator, small-signal amplifier, chopper stabilization, a

latch, and a MOSFET output. Advanced CMOS processing

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

SIP (UA)

Continued on next page....

Not to scale

SOT23W (LH)

SUPPLY

SWITCH

TIMING

LOGIC

OUTPUT

GROUND

Dwg. FH-020-5

Functional Block Diagram

3211-DS, Rev. 24

February 27, 2017

12 3 4 5 6 7...13

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