Datasheet > 3213

3213

更新时间： 2024-11-20 22:36:07

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急速微 - ALLEGRO		/
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MICROPOWER, ULTRA-SENSITIVE HALL-EF FECT SWITCHES

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3213 数据手册

3213 AND

3214

MICROPOWER, ULTRA-SENSITIVE

HALL-EFFECT SWITCHES

The A3213xx and A3214xx 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 cellular and cordless telephones, pagers, and palmtop computers. A 2.4 volt

to 5.5 volt operation and a unique clocking scheme reduce the average oper-

ating power requirements – the A3213xx to 825 µW, the A3214xx to 14 µW

(typical at 2.75 V)! Except for operating duty cycle and average operating

current, the A3213xx and A3214xx are identical.

Package Designator ‘LH’ Pinning

(SOT23W)

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.

Improved stability is made possible through chopper stabilization (dy-

namic offset cancellation), which reduces the residual offset voltage normally

caused by device overmolding, temperature dependencies, and thermal stress.

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

small-signal 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 component geometries.

Dwg. PH-016-1

Range 'E' devices are rated for operation over a temperature range of

-40°C to +85°C; range 'L' devices are rated for operation over a temperature

range of -40°C to +150°C. Two package styles provide a magnetically opti-

mized package for most applications. ‘LH’ is a miniature low-profile surface-

mount package, ‘UA’ is a three-lead SIP for through-hole mounting. Each

package is available in a lead (Pb) free version (suffix, –T) , with a 100% matte

tin plated leadframe.

Pinning is shown viewed from branded side.

ABSOLUTE MAXIMUM RATINGS

at T = +25°C

Supply Voltage, V_DD.............................. 6 V

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

Output Off Voltage, V_OUT...................... 6 V

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

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

FEATURES

■ Micropower Operation

■ Operate With North or South Pole

■ 2.4 V to 5.5 V Battery Operation

■ Chopper Stabilized

Superior Temperature Stability

Extremely Low Switch-Point Drift

Insensitive to Physical Stress

Operating Temperature Range, T_A

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

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

■ ESD Protected to 5 kV

■ Solid-State Reliability

Storage Temperature Range,

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

■ Small Size

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.

■ Easily Manufacturable With Magnet Pole Independence

12 3 4 5 6 7...11

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与3213相关器件

型号	品牌	获取价格	描述	数据表
3213014	PHOENIX	获取价格	Disconnect terminal block - PT 1,5/S-TG
3213027	PHOENIX	获取价格	Disconnect terminal block - PT 1,5/S-TG
3213030	PHOENIX	获取价格	Terminal Block Accessory, Jumper Item, Copper,
3213043	PHOENIX	获取价格	Disconnect terminal block - PT 1,5/S-TG
3213056	PHOENIX	获取价格	Terminal Block Accessory, Jumper Item,
3213069	PHOENIX	获取价格	Terminal Block Accessory, Jumper Item,
3213086	PHOENIX	获取价格	Terminal Block Accessory, Jumper Item,
3213098	PHOENIX	获取价格	Connector Accessory,
3213099	PHOENIX	获取价格	Terminal Block Accessory, Jumper Item,
3213109	PHOENIX	获取价格	Terminal Block Accessory, Jumper Item,

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