The ATS643 is an optimized combination of integrated circuit and magnet that provides a manufacturer-friendly solution for true zero-speed digital gear-tooth sen. The sensor features precise duty cycle accuracy, large operating air gaps, low power consumption and fast start-up time.
The ATS643LSH is an optimized combination of integrated circuit and magnet designed for true zero-speed digital gear-tooth sensing in two-wire applications. The device incorporates a dual element Hall-effect sensor with signal processing circuitry that switches in response to differential magnetic signals created by rotating ferrous targets.
Key features include internal current regulation, automatic gain control (AGC), and reference adjust circuits. It offers true zero-speed operation via digital tracking of the analog signal and uses a continuous update algorithm to fine-tune switchpoints while running, maintaining specifications through large changes in air gap or temperature.
| Supply Voltage Range | 4.0 V to 24 V |
|---|---|
| Operating Temperature Range | -40°C to 150°C |
| Maximum Junction Temperature | 165°C |
| Power-On Time (Typical) | < 2 ms |
| Operating Air Gap Range | 0.5 mm to 2.75 mm |
| Bandwidth (Typical) | 40 kHz |
It is ideal for obtaining speed and duty cycle information in gear-tooth based applications such as transmission speed sensing.
Yes, it provides true zero-speed digital gear-tooth sensing using a continuous update algorithm.
It provides a regulated current output configured for two-wire operation.