Linear Hall Effect Sensor SENT 3-Wire TO92UT

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The HAL 283x are members of the Micronas varioHAL® (HAL 28xy) family of programmable linear Hall-effect sensors.
The sensors feature a digital SENT interface (Single Edge Nibble Transmission). This interface enables a fast and robust data transfer in harsh automotive environments. The implementation of the interface complies with the SAE J2716 SENT standard release 2010-01.
Each SENT message consists of a sequence of pulses. In one protocol, the sensor transmits the magnetic field information, a status information of the sensor, and a CRC checksum for safety reasons. Optional, a pause pulse is added at the end of each protocol to enable a synchronous transmission.
Major characteristics like magnetic field range, sensitivity, offset, and the temperature coefficients of sensitivity and offset can easily be adjusted to the magnetic circuit by programming the non-volatile memory.The digital signal processing is of great benefit because analog offsets, temperature shifts, and mechanical stress do not degrade digital signals.
The HAL 283x is available in the very small leaded package TO-92UT.
The HAL 283x sensors are produced in a proven automotive technology.
  • Contactless potentiometers
  • Angular measurements (e.g. valve, throttle, pedal position, level control system)
  • Linear movement (e.g. seat track position)
  • Linear force or torque measurements
  • Torque measurement (e.g. steering torque)


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High-precision linear Hall-effect sensor
Output resolution up to 16 bit
On-board diagnostics and power-on self-test covering memory and full signal path
Typical magnetic ranges from 20 mT up to 160 mT in 20 mT steps
Programmable temperature compensation sensitivity (2nd order) and offset (1st order)
Programmable sample periods from 0.5 ms to 22 ms with low-pass filter
SENT output according to SAE J2716
SENT clock tick time customer-programmable between 2 s and 17.75 s
Low-time customer-programmable between 3 and 6.75 clock ticks
Sample-accurate transmission
Non-volatile EEPROM with redundancy and lock function
Open-drain output with slew rate control (load independent)
Transmission of temperature and device information by serial data messages
Operating junction temperature range: -40 C up to 170 C
ESD protection (8 kV HBM) at all pins and reverse protection at VSUP pin


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