◆ Features
Rated working voltage 4.5 V ~ 24 V, the limit voltages as low as 3.5 V;
Operating temperature range: -55℃ ~ 150℃;
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;
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 the “N” pole faces the mark surface and is closed to sensor (B≤Brp),the sensor outputs high level. When the magnet is far away from the sensor (B=0), the output status of the sensor is latched and keeps constant. In order to change the output status, the applied magnetic field must be opposite polarity. The magnet and electric transfer characteristic curve of AH3012 is shown as the figure:
◆ Block Diagram
Hall sensor AH3012 is one of bipolar excitation single-ended digital output Hall IC. The output signal owns latch function. 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 driver 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 | -55 | 175 | ℃ |
Supply Voltage | VCC | 3.5 | 28 | V |
Output Cut-off Voltage | VO(off) | — | 25 | V |
Magnetic Induction | B | unlimited | unlimited | mT |
Output Current | IO | — | 50 | mA |
◆ Electrostatic Grade
Under human being mode, the Electrostatic compression is large than ±6kV.
◆ Operating Condition
Parameter | Symbol | Min. | Max. | Unit |
Supply Voltage | VCC | 4.5 | 24 | V |
Operating Temp. | Ta | -55 | 150 | ℃ |
Output Current | IO | — | 8 | mA |
◆ Electrical Characteristic
Parameter | Symbol | Test Condition T | Typ. Typ. Max. | 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,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 | ns |
Output Fall Edge Time | tF | 60 | 80 | ns |
◆ Magnetic Characteristic
Test Condition:VCC1 = VCC2 =24V,IO = 50mA
Parameter | Symbol | Min. | Typ. | Max. |
Operate Point | BOP | — | 2.5 | 4 |
Release Point | BRP | -4 | -2.5 | — |
Hysteresis ∣Operate point –Release Point∣ | BH ∣BOP-BRP∣ | 2.5 | 4 | 6 |
Note 1: Unit is mt, 1mt=10Gs.
Note 2: When the “S”Pole of the magnetic field is vertical to the front mark of product, we call the magnetic field B>0.
◆ Package Outline
SOT23-3L Package figure(Unit: mm)
SOT-89 Package figure ( Unit: mm)
TO-92UA/TO-92S Package figure(Unit: mm)
Note: In the above package outline figure, Pin 1: Vcc, Pin2: GND, Pin 3: Output terminal.
Mark
Mark “XX” or “AHXX” are abbreviation form of the parts No.,
Copyright © Nanjing AH Electronic Science & Technology Co., Ltd. All Rights Reserved.
Technical Support: | Sitemap | Privacy Policy