TLE49762KHTSA1

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TLE49762KHTSA1 is a magnetic sensor switch from the Solid State Magnetic Sensors family. This sensor switch offers robust, reliable and cost-effective auto-configuration, plus the option to control various magnetic actuators. Supplied by STMicroelectronics, TLE49762KHTSA1 is tailored for industry 4.0 applications. The main characteristics of this switch are a wide supply voltage range (2.25 to 5.5 V), an adjustable hysteresis (60 to 100% of the setpoint), a low quiescent current drain, an oscillator frequency of 500 kHz, an internal pull-up resistor, and very high immunity to temperature variations.

TLE49762KHTSA1 is a solid-state magnetic switch designed with a single Hall element for sensing magnetic fields. Based on a preset threshold voltage, the Hall element senses the change in the magnet field in its vicinity and changes the resistance state of the switch accordingly. The switching threshold is digitally set with the auto-configuration procedure. The switch responds to the magnetic field changes within 1µs.

The main application fields of the TLE49762KHTSA1 are motion, position and speed sensing. This sensor switch can be used in motor control, indoor geolocalization, robot navigation, gesture detection, and automotive applications. It can be also adapted to traffic control, security, access and theft detection, and home automation.

This switch is suited for high-volume automotive and industry applications. It is ideally stiff for Fuel-injection valve control, transmission control, throttle control, door locking systems, and other applications that need reliable switching from magnetic actuators.

The components of this switch can be divided in three blocks: the Hall element, a transistor switch, and analog and digital electronics. The Hall element senses the magnetic field in its vicinity and generates a voltage proportional to the intensity of the field. This voltage is then processed by the analog and digital electronics: the voltage is converted into a digital value, and compared against a preset threshold. The transistor then switches the output in response to the voltage level. The setpoint is adjustable between 60 and 100 % of the maximum output value.

The output signal of the TLE49762KHTSA1 is available in two complementary CMOS compatible outputs (AIN1, AIN2). These signals can then be used to trigger an interrupt on a microcontroller or to drive a signal for further processing. It has an improved immunity to temperature variations and process variations due to its two calibration algorithms that allow measuring the setpoint even during power-up.

The TLE49762KHTSA1 is a reliable and cost-effective solution for automotive, industry and consumer applications. It provides a very wide range of input voltage, a low quiescent current drain, robust switching point adjustment and very high temperature stability. The digital setpoint and digital calibration algorithms allow for simple integration to any electronic system and for full control over the switch output.

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