Hall Effect Sensor (AH3621) Unipolar Position Sensor Speed Sensor CMOS Process

• Customization: Available
• Type: CMOS Sensor
• Output Signal Type: Digital Type
• Model NO.: AH3621
• Production Process: SemiConductor Integrated
• Material: Mixture
• Certification: RoHS
• Customized: Non-Customized
• Usage: Position Sensor, Liquid Level Sensor, Speed Sensor
• Theory: Magnetic Sensor
• Transport Package: Package
• Specification: ROHS, REACH, SGS
• Trademark: AHNJ
• Origin: Nanjing, China
• HS Code: 8542319099
• Production Capacity: 100, 000, 000PCS
• Package Size: 14.00cm * 8.00cm * 4.00cm
• Package Gross Weight: 0.500kg

Product Description

Features 

Rated working voltage 2.5 V ~ 12 V, the limit voltages as low as 3.0 V;
Operating temperature range: -25ºC ~ 85ºC;
Rated output current(sink) : 10 mA, the maximum output current(sink): 20 mA
Switch response time is about 1μs, the operating frequency DC ~ 100 kHz;
Small temperature drift between operating point and release point;
No mechanical contact, no spark, switch signal stability, no shaking moment, high reliability and safety;
Products meet the EU RoHS instruction 2011/65 / EU and REACH regulations 1907/2006 / EU requirements

When the "S" pole of magnet faces the mark surface of the sensor and is closed to sensor(B ≥ Bop),the sensor outputs low level; When the magnet is far away from the sensor(B≤ B_RP), the sensor outputs high level. When the "N" pole faces to sensor's mark surface of sesor, the sensor is no response. Stable hysteresis (B_H= ∣B_OP- B_RP∣) ensures stable switch status of sensor. The magnet and electric transfer characteristic curve of AH3621 is shown as the figure:

Hall sensor AH3621 is a kind of digital output Hall IC which produced by CMOS Technology. The sensor chip is produced by CMOS technology, it owns low power consumption, and it has built-in reverse voltage protection, voltage regulators, temperature compensation circuit, Hall-voltage generator, signal amplifier, Schmitt trigger, and output driver and other circuit unit etc. Excellent voltage regulator and temperature compensation circuit ensure the sensor stable operates over a wide voltage range and temperature range, and the reverse voltage protection circuit avoids the sensor to be damaged by reverse voltage.

Limit Parameter

Parameter	symbol	Min.	Max.	Unit
Storage Temp.	Ts	-25	85	ºC
Supply Voltage	VCC	2	16	V
Output Cut-off Voltage	VO(off)	-	12	V
Magnetic Induction	B	unlimited	unlimited	mT
Output Current	IO	-	20	mA

 

Electrostatic Grade
Under human being mode, the Electrostatic compression is large than ±2kV.

 
Operating Condition

Parameter	Symbol	Min.	Max.	Unit
Supply Voltage	VCC	2.5	12	V
Operating Temp.	Ta	-25	85	ºC
Output Current	IO	-	8	mA

 

Electrical Characteristc

Paramater	Symbol	Test Condition	Typ.	Max	Unit
Output Low Level	VOL	VCC1=4.5, VCC2=12V, IO=25mA,B≥BOP	0.2	0.4	V
Output High Level	VOH	VCC1=4.5, VCC2=12V, IO=25mA,B≤BRP	11.5	12	V
Output Leakage Current	IOH	VCC2=24V,VCC1 open circuit	0.1	10	μA
Supply Current	ICC	VCC1=24V,Vo open circuit	3.5	8	mA
Output Rise Edge Time	tR	VCC1=VCC2=12V, RL=1.2kΩ,    CL=20pF	125	150	μs
Output Fall Edge Time	tF		60	80	μs

 

Magnetic Characteristic
Test condition:V_CC1 = V_CC2 =24V,I_O = 50mA

Parameter	Symbol	Min.	Typ.	Max.
Operate Point	BOP	-	8	12
Release Point	BRP	3	4.5	-
Hysteresis Operate point-Release point	BH BOP-BRP	3	5	8

 

 
Note 1: Unit is mT, 1mT=10Gs
Note2:  When the "S" Pole of the magnetic field is vertical to the front mark of product, we call the magnetic field B>0.

 

 

Packaging & Shipping