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Battery powered hall effect switch ALLEGRO A3214LUA-T with pole independent ultra sensitive latched digital output

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Battery powered hall effect switch ALLEGRO A3214LUA-T with pole independent ultra sensitive latched digital output

Operating Current : 6uA

Operating Temperature : -40℃~+85℃

Voltage - Supply : 2.4V~5.5V

Description : TO-92S Switches (Solid State) RoHS

Mfr. Part # : A3214LUA-T

Model Number : A3214LUA-T

Package : TO-92S

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Product Overview

The A3213 and A3214 are ultra-sensitive, pole-independent Hall-effect switches with a latched digital output. Designed for battery-operated, hand-held equipment, they offer reduced average operating power through a unique clocking scheme. Their polarity independence and minimal power requirements allow them to replace reed switches, offering superior reliability and ease of manufacturing without the need for signal conditioning. Chopper stabilization ensures improved stability by reducing residual offset voltage.

Product Attributes

Brand: Allegro MicroSystems, LLC
Certifications: AEC-Q100 automotive qualified
Material: Advanced BiCMOS processing
Lead Finish: 100% matte-tin-plated leadframe (lead (Pb) free)

Technical Specifications

Part Number	Mounting	Packing	Ambient TA (C)	DC (%)	IDD(AVG)(typ) (A)	Operating Voltage (V)	Package
A3213ELHLT-T	Surface Mount	7-in. reel 3000 pieces/reel	40 to 85	25	309	2.4 to 5.5	LH (SOT23W)
A3213ELHLX-T	Surface Mount	13-in. reel 10000 pieces/reel	40 to 85	25	309	2.4 to 5.5	LH (SOT23W)
A3213EUA-T	SIP through hole	Bulk 500 pieces/bag	40 to 150	25	309	2.4 to 5.5	UA (SIP)
A3213LUA-T	SIP through hole	Bulk 500 pieces/bag	40 to 150	25	309	2.4 to 5.5	UA (SIP)
A3214ELHLT-T	Surface Mount	7-in. reel 3000 pieces/reel	40 to 85	0.10	6	2.4 to 5.5	LH (SOT23W)
A3214ELHLX-T	Surface Mount	13-in. reel 10000 pieces/reel	40 to 85	0.10	6	2.4 to 5.5	LH (SOT23W)
A3214EUA-T	SIP through hole	Bulk 500 pieces/bag	40 to 85	0.10	6	2.4 to 5.5	UA (SIP)

Absolute Maximum Ratings

Characteristic	Symbol	Rating	Units
Supply Voltage	VDD	6	V
Magnetic Flux Density	B	Unlimited	G
Output Off Voltage	VOUT	6	V
Output Current	IOUT	1	mA
Operating Ambient Temperature Range E	TA	40 to 85	C
Operating Ambient Temperature Range L	TA	40 to 150	C
Maximum Junction Temperature	TJ(max)	165	C
Storage Temperature	Tstg	65 to 170	C

Electrical Characteristics

Characteristic	Symbol	Test Conditions	Min.	Typ.	Max.	Units
Supply Voltage Range	VDD	Operating	2.4	3.0	5.5	V
Output Leakage Current	IOFF	VOUT = 5.5 V, BRPN < B < BRPS		<1.0	1.0	A
Output On Voltage	VOUT(ON)	Output on, IOUT = 1 mA, VDD = 3.0 V		100	300	mV
Awake Time	tawake			60	90	s
Period	tperiod	A3213		240	360	s
Period	tperiod	A3214, TA = 25C, VDD = 3 V		60	90	ms
Duty Cycle	DC	A3213		25		%
Duty Cycle	DC	A3214		0.10		%
Supply Current (Chip awake)	IDD(EN)	Chip awake (enabled)			2.0	mA
Supply Current (Chip asleep)	IDD(DIS)	Chip asleep (disabled)			8.0	A
Average Supply Current	IDD(AVG)	A3213		309	850	A
Average Supply Current	IDD(AVG)	A3214		6	22	A

Magnetic Characteristics

Characteristic	Symbol	Test Conditions	Min.	Typ. [5]	Max.	Units [6]
Operate Point (South pole)	BOPS	South pole to branded side		42	70	G
Operate Point (North pole)	BOPN	North pole to branded side	70	48		G
Release Point (South pole)	BRPS	South pole to branded side	10	32		G
Release Point (North pole)	BRPN	North pole to branded side		38	10	G
Hysteresis	Bhys	\|BOPx - BRPx\|		10		G

2304140030_ALLEGRO-A3214LUA-T_C139819.pdf

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