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Micropower Omnipolar Hall Sensor AH3663

◆ Features

Micropower designing;

Rated supply voltage 2.4 V ~ 5.5 V;

Omnipolar operating, no “N” or “S” pole in excitation magnetic field, high magnetic sensitivity, highly symmetry in positive and negative magnetic switch point;

Built-in dynamic imbalance voltage compensition circuit, high temperature stability, Small temperature drift in switch point, resistant to mechanical stress and thermal stress, the power consumption is only 8μW when the power supply is 2.75V;

Products meet the EU RoHS instruction 2011/65 / EU and REACH regulations 1907/2006 / EU requirements.

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PRODUCTS DETAILS

◆ Outline

AH3663 is a kind of high sensitivity omnipolar micropower Hall sensor. The special designing circuit enable the sensor has omnipolar (no “S” or “N” pole) magnetic field excitation function, excellendt positive and negative switch symmetry, and bitty average powr consumption current. When the magnet (no “S” or “N” pole) is closed to sensor（︱B︱≥︱Bop︱），the sensor outputs low level; when the magnet is far away from sensor ︱B︱≤︱Brp︱）, the sensor outputs high level. Stable Hysteresis（Bhx =︱Bopx- Brpx︱）ensure the sensor’s stable switch status, the sensor’s magnetic and electric transfer characteristic curve is shown as the figure:

◆ Block Diagram

The sensor chip has voltage regulators, Hall-voltage generator, dynamic imbalance voltage compensator, temperature compensator, awake/sleep controller, differential amplifier, Schmitt trigger, logic controler and open collector output driver circuit unit etc.

◆ Sleep Period

The chip has built-in awake/sleep clock control circuit, and its awake/sleep period time is shown in the figure：

◆ Limit Parameter

Parameter	symbol	Min.	Max.	Unit
Storage Temp.	Ts	-55	150	℃
Supply Voltage	VCC	2.4	7	V
Permitted Power consumption	pd	—	300	mW
Magnetic Induction	B	unlimited	unlimited	mT
Output Current	IO	—	5	mA

◆ Electrostatic Grade

Under human being mode, the Electrostatic compression is large than ±6kV.

◆ Operating Condition

Parameter	Symbol	Min.	Max.	Unit
Supply Voltage	VCC	2.4	5.5	V
Operating Temp.	Ta	-40	85	℃
Output Current	IO	—	5	mA

◆ Electrical Characteristc

Paramater	Symbol	Test Condition	Typ.		Max		Unit
Output Low Level	VOL	VCC1= VCC2=2.75V， IO=1mA，B≥BOP	0.1		0.25		V
Awake power consumption current	IAWK	Awake，VCC1=2.75V，Vo Open circuit	3	5		mA
Sleep power powr consumption current	ISLP	Sleep，VCC1=2.75V，Vo Open circuit	2		4		μA
Average Power Consumption Current	IAVG	VCC1=2.75V，Vo Open circuit	6		9		μA
Awake Time	tAWV	VCC1= 4V，RL=200Ω，Vo Open circuit	125		150		μs
Period	tP	VCC1= 4V，RL=200Ω，Vo Open circuit	60		80		ms
Duty Factor	fd	VCC1= 4V，RL=200Ω，Vo Open circuit	0.1		—		%

◆ Magnetic Characteristic

Test condition：VCC1 = VCC2 =2.75V，IO = 1 mA

Parameter	Symbol	Min.	Typ.	Max.
S pole Operate Point	BOPS	—	3	4
N Pole Operate Point	BOPN	－4	-3	—
S Pole Release Point	BRPS	0.5	1.5	—
N Pole Release Point	BRPN	—	-1.5	－0.5
Hysteresis ︱BOPX － BRPX︱	BHX	—	1	2

Note 1: Unit is mT, 1mT=10Gs.

Note 2: When the “S” Pole of the magnetic field is vertical to the front mark of product, we call the magnetic field B＞0.

◆ Package Ourline

TO-92UA/TO-92S（UA type）Package figure（Unit: mm）

微功耗全极型霍尔传感器AH3663

Note: In the above package outline figure, Pin 1: Vcc, Pin 2: GND, Pin 3: Output terminal.

Mark

Mark “XX” or “AHXX” are abbreviation form of the parts No., the second line”XXXX”means product lot No.

Hall Effect Sensor Manufacturer-Nanjing AH Electronic Science & Technology Co., Ltd.

Micropower Omnipolar Hall Sensor AH3663