PRODUCT INFORMATION
May/2014
HAL 37xy
HAL® 37xy
Second-Generation 3D HAL® Sensor Family
with Superior Angular Accuracy
The HAL 37xy family is the second sensor
generation using Micronas’ proprietary
3D HAL technology, which offers a further
improvement of the angular performance.
Compared to the first generation, a 30%
lower angular error has been achieved.
temperature range resulting in a new class
of accuracy for angular or linear measure-
ments. The sensor features an arbitrarily
programmable stepwise linear characteris-
tic for linearization of the output signal.
Major characteristics can be adjusted to the
magnetic circuit by programming the non-
volatile memory.
◆ 12 bit ratiometric linear analog output for
HAL 372x
◆ Modulo 90°/120° output for HAL 3715
◆ 0.2 kHz to 2 kHz PWM (up to 12 bit) or
12 bit SENT output for HAL 373x
◆ Programmable arbitrary output charac-
Operation with magnetic fields down to
20 mT is enabled thanks to the improved
technology. HAL 3715 and HAL 372x pro-
vide a linear, ratiometric analog output sig-
nal with integrated wire-break detection
working with pull-up or pull-down resistors.
HAL 373x features digital output formats
such as PWM and SENT SAEJ2716 rev.
2010. The digital output format is customer
programmable.
teristic with up to 33 setpoints
◆ Operates from V
=4.5 V up to 5.5 V
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The sensors contain advanced on-board
diagnostic features that enhance fail-safe
detection. The devices are designed for
automotive and industrial applications and
operate in the junction temperature range
from 40 °C up to 170 °C. The sensors are
available in a very small four-pin leaded
transistor package TO92UP, as well as in a
SOIC8 package.
◆ Operates from T =40 °C up to 170 °C
J
◆ Programming via the sensor’s output pin
◆ Programmable characteristics in
EEPROM with redundancy and lock
function
nd
◆ 2 -order temperature-dependent offset
programmable for X/Y- or Z-channel
The sensors can measure three magnetic
◆ On-chip diagnostics
field components B , B , and B . This
X
Y
Z
Features
enables a set of potential applications for
position detection, such as wide distance,
angle or through-shaft angular measure-
ments. On-chip signal processing calcu-
lates the angle out of two of the magnetic
field components and converts this value
into an output signal. The sensor exhibits
excellent drift performance over the specified
◆ Short-circuit protected push-pull output
◆ Over-/reverse-voltage protection at
◆ Measurement extremely robust against
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temperature and stress influences
◆ Under- and overvoltage detection of
◆ Operating with magnetic field amplitudes
down to 20 mT with an angular accu-
racy of 0.5% FS (digital output, X-Y Hall
plates)
VSUP
◆ Wire-break detection with pull-up and
pull-down resistors