HAL2830 View Datasheet(PDF) - Micronas
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HAL2830 Datasheet PDF : 34 Pages
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HAL 283x
DATA SHEET
3. Functional Description
3.1. General Function
The HAL 283x is a monolithic integrated circuit, which
provides an output signal proportional to the magnetic
flux through the Hall plate.
The external magnetic field component, perpendicular
to the branded side of the package, generates a Hall
voltage. The Hall IC is sensitive to magnetic north and
south polarity. This voltage is converted to a digital
value, processed in the digital signal processing Unit
(DSP) according to the settings of the EEPROM regis-
ters.
The function and the parameters for the DSP are
explained in Section 3.2. on page 7.
Internal temperature compensation circuitry and the
spinning current offset compensation enables opera-
tion over the full temperature range with minimal
changes in accuracy and high offset stability. The cir-
cuitry also rejects offset shifts due to mechanical
stress from the package.
The HAL 283x provides two operation modes, the
application mode and the programming mode.
Application Mode
The output signal is provided as continuous SENT
data stream.
Programming Mode
For the programming of the sensor parameters, a
Biphase-M protocol is used.
The HAL 283x provides non-volatile memory which is
divided in different blocks. The first block is used for
the configuration of the digital signal processing, the
second one is used by the various customer settings.
The non-volatile memory employs inherent redun-
dancy.
VSUP
Internally
stabilized
Supply and
Protection
Devices
Temperature
Dependent
Bias
Oscillator
Protection
Devices
Switched
Hall Plate
A/D
Converter
Digital
Signal
Processing
SENT
Module
Open-Drain
Output
DIO
with
Slew Control
GND
Temperature
Sensor
A/D
Converter
Fig. 3–1: HAL 283x block diagram
EEPROM Memory
Lock Control
Programming
Interface
6
Jan. 18, 2016; DSH000165_002EN
Micronas
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