Data Sheet

ManualsBrandsNo Name PL ManualsActive ComponentsHall effect sensor AH3031UA 4.5 - 24 V DC Reading range: -0.004 - +0.004 T TO-92 Soldering

NANJING AH ELECTRONIC SCIENCE ＆ TECHNOLOGY CO.,LTD

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

TEL：86-25-68976263 FAX：86-25-68976999

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

AH30 Series Hall sensor is one of bipolar 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 drives

circuit unit. 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 being reverse voltage damage.

◆ Bipolar latch 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≥Bop），the sensor outputs low level; When the N pole faces the mark surface and is closed to

sensor （B≤Brp），the sensor outputs high level. When the magnet if far away with the sensor

(B=0), the output status of the sensor is latched and remains constant. In order to change the

output status, the applied magnetic field must be opposite polarity. The latch function enables the

switch state of the sensor to be more stable. The bipolar latch Hall effect sensor’s magnet and

electric transfer characteristic curve is shown as the figure:

-B

Brp

Bop

Vcc

-B

AH30 Series Bipolar Latch Hall Effect Sensor

◆ Outline

◆ Magnetic and electric transfer characteristic

Summary of content (10 pages)

PAGE 1
AH30 Series Bipolar Latch Hall Effect Sensor ◆ Outline AH30 Series Hall sensor is one of bipolar 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 drives circuit unit.
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◆ Ordering 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 30—— Bipolar 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:   Rated working voltage 4.
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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（Note） mA Note: The output current limit value of AH3012 (AH512) is 20mA. ◆ Operating Condition Value Parameter Note: Symbol Unit Min. Max. Supply Voltage VCC 4.5 24 V Operating Temp.
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◆ Electrical Characteristic Value Parameter Output low level Symbol VOL Test Condition Unit VCC1 = 4.5V，VCC2=24V， 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 Switch Type mode AH3031 AH3041 BOP BRP Max Min.
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◆ Block Diagram Vcc Voltage Regulator Vo Hall effect element Differential amplifier Schmitt Output Stage Trigger GND Note: AH3012(AH512) has a pull-up resistor that is 12kΩ～18kΩ between power supply and output  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.
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 Typical Application Circuit Vcc1 Vcc2 RL 1 3 C Vo 3 2 GND Note： a)C is filter capaciter，C=0.1μF； b)RLis pull-up resistor，RL=1kΩ～50kΩ。 c) Vcc2 work with Vcc1short circuit.   Typical Characteristic Curve Electrical Characteristic 8 0.4 7 Vcc=24V Io=25mA Icc （mA） VoL （V） 0.3 0.2 0.1 6 5 4 3 0 -50 0 50 100 150 2 -50 0 50 100 150 Ta （℃） Ta （℃） Output Low level Voltage—Ambient Temp. Curve Supply Current—Ambient Temp. Curve NANJING AH ELECTRONIC SCIENCE ＆ TECHNOLOGY CO.
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Magnetic Characteristic 12 10 8 6 4 2 0 -2 -4 -6 -8 Bh Switch Point （mT） Switch Point（mT）  Bop Brp -50 0 50 100 150 Bh Bop Brp -50 0 50 100 150 Ta (℃） Ta （℃） AH3013 Switch Point—Ambient Temp. Curve AH3041 Switch Point—Ambient Temp.
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◆ Package Outline and Pin Identify  SOT-23-3L（M Type）Package Figure（Unit:mm）  SOT-89（S type）Package Figure（Unit:mm） NANJING AH ELECTRONIC SCIENCE ＆ TECHNOLOGY CO.,LTD ADD：Room901, BLDG 1, Cheng Kai Mansion,198, HongWu Road, Nanjing, 210002 TEL：86-25-68976263 FAX：86-25-68976999 E-mail：nianrong@ahest.com Web: www.ahest.
PAGE 10
 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  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.