UGN3055U データシートの表示（PDF） - Allegro MicroSystems

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UGN3055U

MULTIPLEXED TWO-WIRE HALL-EFFECT SENSOR ICs

Allegro MicroSystems 

3055

MULTIPLEXED

TWO-WIRE HALL EFFECT

SENSOR IC

Bus Control Software

The processing of the bus current (available at Analog Out) is best

done by feeding it into the A/D input of a microprocessor. If the

flexibility provided by a microprocessor is not desired, this signal could

be fed into threshold detection circuitry; e.g., comparator, and the

output used to drive a display.

Related References

1. G. AVERY, “Two Terminal Hall. Sensor,” ASSIGNEE: Sprague

Electric Company, North Adams, MA, United States. Patent number

4,374,333; Feb. 1983.

2. T. WROBLEWSKI and F. MEISTERFIELD, “Switch Status

Monitoring System, Single Wire Bus, Smart Sensor Arrangement

There Of,” ASSIGNEE: Chrysler Motor Corporation, Highland Park, Ml,

United States. Patent number 4,677,308; June 1987.

FIGURE 4

BUS INTERFACE SCHEMATIC

+15 V

1 kΩ

10 kΩ R 4

9V

0.001

Z1

µF

20 kΩ

R5

ADDRESS 5 kΩ

Q1

RESET 5 kΩ

1 kΩ

Q3

OP 1

50 Ω R 6

Q2

50 kΩ

R8

BUS SUPPLY

X

X

50 kΩ

R7

12 3

NC

100 kΩ R 9

12 3

SWITCH

BUS RETURN

100 kΩ

R 10

OP 2

ANALOG OUT

Dwg. EH-003A

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