Brand Name: AHNJ
Model Number: AH3144
Place of Origin: Nanjing, China
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.
AH3144
High sensitive hall-effect switch integrated circuits
These Hall-effect switches are monolithic integrated circuits with tighter magnetic specifications and high sensitivity, 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.
Absolute maximum rating | ||||
Parameter | Symbol | Value | Unit | |
Supply Voltage | VCC | 24 | V | |
Magnetic Flux Density | B | Unlimited | mT | |
Output OFF Voltage | Vce | 40 | V | |
Continuous Output Current | IOL | 25 | mA | |
Operating Temperature Range | TA | AH31XXE | -25~85 | º C |
AH31XXL | -40~150 | º C | ||
Storage Temperature Range | TS | -55~150 | º C |
Electrical Characteristics TA=25º C
Magnet characteristics VCC=4.5~24V
Parameter | Symbol | AH3135 | Unit | ||
min | typ | max | |||
Operate Point | BOP | - | - | 11 | mT |
Release Point | BRP | 3 | - | - | mT |
Hysteresis | BH | 5 | - | - | mT |