Introduction

HAL 283x is a Micronas family of programmable linear Hall-effect sensors with SENT output. The family consists of the four members described in Table 1–

Features

– High-precision linear Hall-effect sensor

– Spinning current offset compensation

– 20 bit digital signal processing

– Output resolution up to 16 bit

– Magnetic measurement range over temperature adjustable from ±24 mT up to ±96 mT

– Sample period programmable from 0.5 ms to 33 ms

– Various sensor parameter are programmable: offset, sensitivity, temperature compensation for sensitivity (2nd order) and offset (1st order), etc.

– Programming and operation of multiple sensors at the same supply line

– Biphase-M interface (programming mode)

– Non-volatile memory with lock function

– SENT clock tick time programmable between 2 µs and 17.75 µs

– Pulse low time programmable between 3 and 6.75 clock ticks

– Sample accurate transmission of magnetic field information

– Transmission of temperature and device information by serial data messages in the status nibble

– Open-drain output with slew rate control (load independent)

– On-board diagnostics (overvoltage, output current, overtemperature, signal path overflow)

– Power-on self-test covering all memories and full signal path from Hall plates to SENT output

– ESD protection at DIO pin

– Reverse voltage and ESD protection at VSUP pin

– High immunity against mechanical stress, ESD, and EMC

– AECQ-100 rev. G qualified

Major Applications

– Steering torque

– Suspension level

– Throttle position

– Pedal position

– Valve position