Features
Rated working voltage 4.5 V ~ 24 V, the limit voltages as low as 3.5 V;
Operating temperature range: -40ºC ~ 150ºC;
Rated output current(sink) : 25 mA, the maximum output current(sink): 50 mA
Switch response time is about 1μs, the operating frequency DC ~ 100 kHz;
Small temperature drift between operating point and release point;
There are variety of packages and out packing options;
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
Outline
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 magnet is far away from sensor(B≤BRP), the sensor outputs high level. When the N pole faces the mark surface,the sensor is no response. Stable Hysteresis((BH= |BOP- BRP|)ensure the stable sensor's switch status. The magnet and electric transfer characteristic curve of AH441 is shown as the figure:
Operating Condition
| Parameter | Symbol | Min. | Max. | Unit |
| Supply Voltage | VCC | 4.5 | 24 | V |
| Operating Temp. | Ta | -40 | 150 | ºC |
| Output Current | IO | - | 5 | mA |
Electrical Characteristc
| Paramater | Symbol | Test Condition | Typ. | Max | Unit |
| Output Low Level | VOL | VCC1=4.5, VCC2=24V, IO=25mA,B≥BOP | 0.2 | 0.4 | V |
| Output High Level | VOH | VCC1=4.5, VCC2=24V, IO=25mA,B≤BRP | 23.5 | 24 | V |
| Output Leakage current | IOH | VCC2=24V,VCC1Open 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 | ms |
Magnetic Characteristic
Test Condition :VCC1 = VCC2 =24V,IO = 50mA
| Parameter | Symbol | Min. | Typ. | Max. |
| Operate Point | BOP | - | 10 | 12 |
| Release Point | BRP | 4 | 7 | - |
Hysteresis
(Operate point-Release point) | BH
BOP-BRP | 2 | 3.5 | 5 |
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.
Note 3: For M type ( SOT23-3L) product, the operating magnetic field is subject to "N" pole.
Specialized in researching, developing, designing, manufacturing and selling the magnetic sensors, hall IC, hall effect sensor, hall switch, current sensor, hall effect elements, unipolar hall switch IC, bipolar hall IC, linear sensors, latch hall switch IC, linear position sensors, zero power magnetic sensor products. "nanjing ah electronic science & Technology Co., Ltd" was establish in may 2003, by several Chinese senior experts of magnetic sensors. The culture is"science, development, service", our company applies itself in researching and manufacturing the sensors which owns China' S independent intellectual property rights.
Nanjing ah electronic science & Technology Co., Ltd relies on its advanced technology strength, rich industrial experiences and veracious market visibility, it established abroad strategic cooperation relations with top professional manufacturers of IC designing, manufacturing, package and testing in the United States and Taiwan and home, and the company all along exerts the most advanced designing and manufacture technology to ensure the product and technology in the highest flight, and furthest ensure the coherence and reliability and stability of the products.
The products of "nanjing ah electronic science & Technology Co., Ltd " Includes ah series unipolar hall switch IC, ah series bipolar hall IC, ah serieslatch hall switch IC, ah series linear hall IC, wg series zero power consumption magnetic sensor etc.
"Nanjing AH Electronic Science & Technology Co., Ltd. " is the high and new technology enterprise in jiangsu province. The company owns more than a Dozen of China patents, 2 International patents. The company has passed ISO9001 certification and product environmental protection tests, and assumes several national technological projects.
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