HAC830CV-M-A-2-A-2 Datasheet, PDF (14/49 Pages) Micronas – Robust Multi-Purpose Programmable Linear Hall-Effect Sensor with Integrated Capacitors

DATA SHEET
HAC 830
Filter
The FILTER bits define the 3 dB frequency of the digital low pass filter.
Table 3–3: FILTER bits defining the 3 dB frequency
3 dB Frequency
80 Hz
500 Hz
1 kHz
2 kHz
MODE [4:3]
00
10
11
01
Output Format
The OUTPUTMODE bits define the different output modes of HAC 830.
Table 3–4: OUTPUTMODE for HAC 830
Output Format
Analog Output (12 bit)
MODE [7:5]
000
In Analog Output mode the sensor provides an ratiometric 12 bit analog output voltage
between 0 V and 5 V.
In Multiplex Analog Output mode the sensor transmits two analog 7-bit values, the
LSB (least significant bits) and the MSB (most significant bits) of the output value sepa-
rately. This enables the sensor to transmit a 14 bit signal.
– In external trigger mode the ECU can switch the output of the sensor between LSB
and MSB by changing current flow direction through sensor output. In case the output
is pulled up by a 10 k resistor the sensor sends the MSB. If the output is pulled down
the sensor will send the LSB. Maximum refresh rate is about 500 Hz (2 ms).
– In continuous mode the sensor transmits first LSB and then MSB continuously and
the ECU must listen to the data stream sent by the sensor.
In the Multiplex Analog Output mode 1 LSB is represented by a voltage level change of
39 mV. In Analog Output mode with14 bit 1 LSB would be 0.31 mV.
In Burn-In Mode the signal path of the sensor’s DSP is stimulated internally without
applied magnetic field. In this mode the sensor provides a “saw tooth” shape output sig-
nal. Shape and frequency of the saw tooth signal depend on the programming of the
sensor.
This mode can be used for Burn-In test in the customers production line.
Micronas
Feb. 24, 2016; DSH000178_001EN
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