A1377LUCTN-TC3-T Sensors, Transducers

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The A1377LUCTN-TC3-T is a linear Hall-effect digital transducer for 3.3V operation from Allegro Microsystems Inc., which is part of a class of magnetic sensors known as linear, compass (ICs). A Hall-effect transducer has a certain number of internal integrated magnets which actively sense a magnetic field, allowing the transducer to measure changes in the magnetic field. This means that the transducer can be used to measure displacement, speed and direction in applications where a magnet is used to encode the measurement. When combined with an external permanent magnet, the transducer provides a wide range of applications, including linear position measuring, rotational speed and direction of rotation.

The A1377LUCTN-TC3-T transducer operates from a single 3.3V supply and stress tolerance of up to 5.5V, with low voltage hysteresis of 0.1V typ and 0.2V max at the same operation temperature of -40°C to +125°C. It supports a wide operating temperature range, provides excellent accuracy and thermal stability and is programmable for high-precision linear measurements. The transducer features differential outputs (output change with inputs on the same side) with a low on-state resistance and a wide dynamic range which is necessary for sensing motors in a wide range of application areas.

The transducer can be used in a variety of applications such as linear displacement, rotational speed and direction of rotation measurement. It consists of two terminals, one end terminal (S) and one reference terminal (V). The reference terminal (V) is connected to the ground and the other end terminal (S) is connected to the variable input (VAR). The rise in input voltage causes the junction field effect (JFET) to open and close, creating an output signal.

The transducer has a two-stage operation: the first stage is the zero-point adjustment stage, which is used to determine the zero reference voltage (VR) of the output voltage, and the second stage is the normal operation stage, where the power supply is connected to the transducer and the output signal is compared with the zero Voltage (VR) to determine the displacement, speed or direction.

The A1377LUCTN-TC3-T transducer is also available with an optional single-side output (SSO) configuration, which can be used for applications that require one input and one output. Additionally, the transducer is offered with a digital interface for measuring displacement, speed and direction in an integrated circuit.

In conclusion, the A1377LUCTN-TC3-T is a linear Hall-effect digital transducer used in a variety of applications such as linear displacement, rotational speed and direction of rotation measurement. The transducer features a two-stage operation with an optional single-side output (SSO) configuration, a wide range of temperature operations and excellent accuracy and thermal stability, making it a great choice for sensing motors in a wide range of applications.

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