Introduction
The HAL 37xy family comprises the second generation of sensors using the proprietary Micronas 3D HAL technology. This new family has several members. HAL 372x provides a linear, ratiometric analog output signal with integrated wire-break detection working with pull-up or pull-down resistors. Compared to HAL 372x, the HAL 371x is splitting the 360° measurement range either into four repetitive 90° (MOD 90°) or three 120° (MOD 120°) segments. HAL 373x features digital output formats like PWM and SENT (according to SAE-J2716 release 2010). The digital output format is customer programmable. The PWM output is configurable with frequencies between 0.2 kHz and 2 kHz with up to 12 bit resolution.

FEATUREs
– Angular and position measurement extremely robust against temperature and stress
   influence
– 12 bit ratiometric linear analog output for HAL 3715/HAL 372x
– Modulo 90°/120° for HAL 371x
– 0.2 kHz to 2 kHz PWM (up to 12 bit)
   or 12 bit SENT output for HAL 3711/HAL 373x
– Programmable arbitrary output characteristic with up to 33 setpoints
– 8 kHz sampling frequency
– Operates from 4.5 V up to 5.5 V supply voltage
– Operates from 40 °C up to 150 °C ambient temperature
– Programming via the sensor’s output pin
– Programmable characteristics in a non-volatile memory (EEPROM) with redundancy
   and lock function
– Programmable first-order low-pass filter
– Programmable hysteresis on X/Y- or Z-channel
– Programmable output gain and offset
– X/Y- and Z-channel gain of signal path programmable
– Second-order temperature-dependent offset of signal path programmable for X/Y- or
   Z-channel
– Phase shift between X/Y- and Z-channel programmable
– Programmable offset before angle calculation block
– Programmable output clamping for error band definition
– Programmable reference position
– Programmable magnetic detection range
– 32 bit identification number for customer
– 32 bit identification number with TDK-Micronas production information
   (like X,Y position on production wafer)
– On-board diagnostics of different functional blocks of the sensor
– Short-circuit protected push-pull output
– Over- and reverse voltage protection at VSUP
– Under- and overvoltage detection of VSUP
– Wire-break detection with pull-up or pull-down resistor
– EMC and ESD robust design

Major Applications
Due to the sensor’s versatile programming characteristics and its high accuracy, the HAL 37xy is the optimal system solution for applications such as:

– Linear movement measurement,
   • EGR valve position
   • Clutch pedal position
   • Cylinder and valve position sensing
– Rotary position measurement, like
   • Gear selector
   • Throttle valve position, etc.
   • Chassis position sensors (ride-height control) with HAL 371x
– Joystick
– Non-contact potentiometer