Datasheet

ManualsBrandsUnbranded ManualsSensorsHall effect sensor AH3144EUA 4.5 - 24 Vdc Reading range: +0.005 - +0.022 T Soldering

NANJING AH ELECTRONIC SCIENCE ＆ TECHNOLOGY CO.,LTD

ADD：Room901, BLDG 1, CNK Mansion, 198, HongWu Road, Nanjing, 210002

TEL：86-25-68976263 FAX：86-25-68976999

E-mail：nianrong@ahest.com Web: www.ahest.com

AH31 Series Hall sensor is one of uniplar excitation single-ended digital output Hall IC. The

sensor chip has built-in reverse voltage protection voltage regulators, temperature compensation

circuit, Hall-voltage generator, signal amplifier, Schmitt trigger and open collector output drivers

and so on. Excellent performance of the voltage regulator and temperature compensation circuits,

ensure the sensor stable operated over a wide voltage range and temperature range, the reverse

voltage protection circuit avoids the sensor being reverse voltage damage.

Unipolar switch type Hall effect Sensor magnet and electric transfer characteristic:：

◆ When the S pole of magnet faces the mark surface of the sensor and is closed to sensor

（B≥B

），the sensor outputs low level; When the magnet is far away from sensor （B≤B

），

the sensor outputs high level. When the N pole faces the mark surface of the sensor, it is no

response. Stable Hysteresis(B

= Bop-- Brp）ensures stable sensor’s switch status. The sensor’s

magnet and electric transfer characteristic curve is shown as the figure:

AH31 Series Unipolar Digital Hall Effect Sensor

◆ Outline

◆ Magnetic and electric transfer characteristic

Brp

Bop

VoL

Vcc

Summary of content (10 pages)

PAGE 1
AH31 Series Unipolar Digital Hall Effect Sensor ◆ Outline AH31 Series Hall sensor is one of uniplar excitation single-ended digital output Hall IC. The sensor chip has built-in reverse voltage protection voltage regulators, temperature compensation circuit, Hall-voltage generator, signal amplifier, Schmitt trigger and open collector output drivers and so on.
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◆ Order Information  Parts No. and order mark： AH Operating Temperature code Package form code Part No. code Company trademark code  Company trademark code: AH ——Nanjing AH Electronic Science & Technology CO.,LTD  Parts No. code 31—— Unipolar single end digital output series XX —— Type. No.  Package form code M——SOT-23-3L（SMD） S—— SOT-89（SMD） UA —— TO-92UA/TO-92S（DIP） Note: M and S type are in reel, M type is 3k pcs/reel, S type is 1kpcs/reel, UA type is in bag, 1kpcs/bag or 0.5kpcs/bag.
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◆ Features:      Operating temperature range: -40℃ ~  No mechanical contact, no spark, switch 150℃; signal stability, no shaking moment, high Rated working voltage4.5 V ~ 24 V,the reliability and safety; limit voltages as low as3.
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◆ Limit Condition Limit Value Parameter Symbol Unit Min. Max. Storage Tempt. Ts -55 175 ℃ Supply Voltage VCC1 3.5 28 V Magnetic Strength B unlimited unlimited mT Output off-state Voltage VO (off) — 25 V Output(sink)Current IO — 50 mA ◆ Operating Condition Value Parameter Symbol Unit Min. Max. Supply Voltage VCC 4.5 24 Supply Voltage Operating Temp. Ta -40 150 ℃ Output Current IO — 50 mA NANJING AH ELECTRONIC SCIENCE ＆ TECHNOLOGY CO.
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◆ Electrical Characteristic Value Parameter Output low level Symbol Test Condition Unit VCC1 = 4.5V，VCC2=24V， VOL voltage Typ. Max. 0.2 0.4 V 0.1 10 μA 6 12 mA 0.3 1.5 μs IO=25mA，B≥BOP Outputleak current IOH VCC2=24 V，VCC1 Open circuit Supply Current ICC VCC1=24V，VO Output rise time tR VCC1=VCC2=12V， Output fall time tF RL=1.2kΩ，CL=20pF Open circuit ◆ Magnetic Characteristic Excitation and Type Switch mode Package AH3133 BOP BRP Max Min.
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◆ Block Diagram  Pin Function ◆ Function Pin No. Pin Symbol Pin Name When B ≥ BOP Supply 1 Vcc 2 GND Ground 3 Vo Output Voltage When B ≤ BRP Power Supply（+） Power Supply（-） Low Level High Level NANJING AH ELECTRONIC SCIENCE ＆ TECHNOLOGY CO.,LTD ADD：Room901, BLDG 1, CNK Mansion, 198, HongWu Road, Nanjing, 210002 TEL：86-25-68976263 FAX：86-25-68976999 E-mail：nianrong@ahest.com Web: www.ahest.
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◆ Typical Characteristic Curve ◆ Vcc1 Vcc2 RL 1 3 C 3 Vo 2 GND Note： a) C is filter capaciter，C=0.1μF； b) RL is pull-up resistor，RL=1kΩ～50kΩ。 c) Vcc2 work with Vcc1short circuit. Typical application circuit  Electrical Characteristic 7 0.4 6 0.3 VoL（V） Icc（mA） ◆ 5 4 Vcc=24V 0.2 0.1 3 0 2 -50 0 50 100 Ta（℃） Supply current--Ambient Temp. Curve 150 -50 0 50 100 150 Ta（℃） Output low Level voltage—Ambient Temp.Curve NANJING AH ELECTRONIC SCIENCE ＆ TECHNOLOGY CO.
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 Magnetic Charicteristic 20 18 Switch Point （mT） Switch Point （mT） 6 4 2 16 14 12 10 8 6 4 2 0 0 -50 0 50 100 150 -50 0 50 Ta (℃） Ta (℃） AH3133 Switch Point—Ambient Temp. Curve AH3144 Switch Point—Ambient Temp. Curve ◆ Package Outline and Pin Identify  ◆ 100 SOT-23-3L（M Type）Package Figure（Unit:mm） NANJING AH ELECTRONIC SCIENCE ＆ TECHNOLOGY CO.,LTD ADD：Room901, BLDG 1, CNK Mansion, 198, HongWu Road, Nanjing, 210002 TEL：86-25-68976263 FAX：86-25-68976999 E-mail：nianrong@ahest.
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 SOT-89（S type）Package Figure（Unit:mm）  TO-92UA/TO-92S（UA type）Package Figure（Unit:mm） Note: In the package outline figure, Pin 1 is Vcc, Pin 2 is GND, Pin 3 is output NANJING AH ELECTRONIC SCIENCE ＆ TECHNOLOGY CO.,LTD ADD：Room901, BLDG 1, CNK Mansion, 198, HongWu Road, Nanjing, 210002 TEL：86-25-68976263 FAX：86-25-68976999 E-mail：nianrong@ahest.com Web: www.ahest.
PAGE 10
 Mark Mark XX or AHXX means abbreviated parts No., the second line XXXX means product lot No.  Pin configuration a) M Type: It faces product mark, and two pins are downward, towards the left, clockwise, the pin No. is 1、2、3 in turn. b) S Type and UA Type: It faces product mark, and the pins are downward, from left to right, the pin No. is 1、2、3 in turn. Important Declaration The document’s version is Aug 2013, and the copyright belongs to Nanjing AH Electronic Science & Technology CO., Ltd.