| Prod Model: |
AH3142 |
| Markets: |
North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe |
Product Description
Unipolar hall-effect sensor ics, often referred to as "unipolar switches, " are operated by a positive magnetic field. A single magnet presenting a south polarity (positive) magnetic field of sufficient strength (magnetic flux density) will cause the device to switch to its on state. After it has been turned-on, the unipolar IC will remain turned-on until the magnetic field is removed and the IC reverts to its off state.
Sensitive hall-effect switch integrated circuits
These hall-effect switches are monolithic integrated circuits with tighter magnetic specifications, designed to operate continuously over extended temperatures to +150° C, and are more stable with both temperature and supply voltage changes. The unipolar switching characteristic makes these devices ideal for use with a simple bar or rod magnet.
Each device includes a voltage regulator for operation with supply voltages of 4.5 to 24 volts, reverse battery protection diode, quadratic hall-voltage generator, temperature compensation circuitry, small-signal amplifier, schmitt trigger, and an open-collector output to sink up to 25 ma. With suitable output pull up, they can be used with bipolar or CMOS logic circuits.
Features
Wide supply voltage range
Fast response time
Wide frequency and temperature range
Long operating life
Small size, convenient installing
Output compatible with all digital logic families
Typical applications
Contactless switch
. Position control
Speed measurement
. Revolution detection
Isolation measurement
. Brushless DC motor
Automotive ignitor.
Unipolar Switch Type Hall Effect IC |
Model | Package | VCC(V) | ICC(mA) | VOL(V) | IOH(uA) | IO(mA) | Bop(mT) | Brp(mT) | Bh(mT) |
| Min. | Max. |
| AH3133 | TO92, SOT 23-3L | 4.5-24 | 6-12 | 0.2-0.4 | <10 | 50 | 6 | 1 | 1.5 | 3 |
| AH3142 | 9 | 2 |
| AH3134 | 11 | 3 | 3 | 6 |
| AH3144 | 22 | 5 |
| AH3141(AH441) | 12 | 4 | 2 | 5 |
| AH3143(AH443) | 20 | 5 |
| AH3153(AH533) | SOT 89 | 12 | 3 | 2 | 5 |
| AH3143(AH543) | 20 | 5 |
| AH 3621 | TO92, SOT 23-3L | 2.5-16 | 5-10 | 15 | 15 | 2 | 2.5 | 6 |
| Note 1: When the magnetic field S pole perpendicular points to the mark of the product front, the field is defined as B> 0. |
| Note 2: Working magnetic field of M-type (SOT23-3L) products is subject to N pole. |
| Note 3: More products information please visit our website or call us. |
| Absolute maximum rating |
| Parameter | Symbol | Value | Unit |
| Supply Voltage | VCC | 24 | V |
| MagneticFlux Density | B | Unlimited | mT |
| Output OFF Voltage | Vce | 28 | V |
| Continuous Output Current | IOL | 50 | mA |
| Operating TemperatureRange | TA | AH31XXE | -25~85 | º C |
| AH31XXL | -40~150 | º C |
| StorageTemperature Range | TS | -55~150 | º C |
Electrical Ch a ra cteristics TA=25º C
| Parameter | Symbol | Test condition | Type and Value | Unit |
| min | typ | max |
| Supply Voltage | VCC | | 4.5 | - | 24 | V |
| Output Saturation Voltage | VOL | Iout=20mA B> BOP | - | 200 | 400 | mV |
| Output Leakage Current | IOH | Vout=24V B RP | - | 0.1 | 10 | μ A |
| Supply Current | ICC | VCC=Output Open | - | - | 10 | mA |
| Output Rise Time | tr | RL=820Ω CL=20PF | - | 0.12 | - | μ S |
| Output Fall Time | tf | RL=820Ω CL=20PF | - | 0.18 | - | μ S |
CC!~=4.5~24V
| Parameter | Symbol | AH3142 | Unit | |
| min | typ | max | typ | max | |
| Operate Point | BOP | - | - | 21 | - | 28 | mT |
| | | | | | | | |
| Release Point | BRP | 2 | - | - | - | - | mT |
| Hysteresis | BH | 2.5 | - | - | - | - | mT |
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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