HAC830CV-M-A-2-A-2 Datasheet, PDF (35/49 Pages) Micronas – Robust Multi-Purpose Programmable Linear Hall-Effect Sensor with Integrated Capacitors

DATA SHEET
HAC 830
5.2. Use of two HAC 830 in Parallel
Two different HAC 830 sensors which are operated in parallel to the same supply and
ground line can be programmed individually. In order to select the IC which should be
programmed, both Hall ICs are inactivated by the “Deactivate” command on the com-
mon supply line. Then, the appropriate IC is activated by an “Activate” pulse on its out-
put. Only the activated sensor will react to all following read, write, and program com-
mands. If the second IC has to be programmed, the “Deactivate” command is sent
again, and the second IC can be selected.
Note
The multi-programming of two sensors requires a 10 k pull-down resistor
on the sensors’ output pins.
HAC 830
Sensor A
HAC830
Sensor B
VSUP
OUT A & Select A
OUT B & Select B
GND
Fig. 5–2: Recommended application circuit (parallel operation of two HAC 830),
no additional capacitors needed
Micronas
Feb. 24, 2016; DSH000178_001EN
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