Chopper-Stabilized Omnipolar Hall Effect Switches

A3245

3

Allegro MicroSystems, Inc.

115 Northeast Cutoff, Box 15036

Worcester, Massachusetts 01615-0036 (508) 853-5000

www.allegromicro.com

OPERATING CHARACTERISTICS

valid over full operating voltage and ambient temperature ranges, unless otherwise noted

Characteristic

Symbol

Test Conditions

Min.

Typ.

Max.

Units

Electrical Characteristics

3.6

–

24

V

Output Leakage Current

––

10

μA

Output On Voltage

–

–

500

mV

Output Current Limit

30

–

60

mA

Power-On Time

––

50

μs

Chopping Frequency

–

200

–

kHz

–

–

1

μs

–

–

1

μs

Supply Current

–

1.5

3.5

mA

–

1.5

3.5

mA

Reverse Battery Current

–

–

–2

mA

Supply Zener Clamp Voltage

28

–

–

V

–

–

6.5

mA

Operate Point

South pole adjacent to branded face of device

15

38

55

G

North pole adjacent to branded face of device

–55

–38

–15

G

Release Point

South pole adjacent to branded face of device

5

20

50

G

North pole adjacent to branded face of device

–50

–20

–5

G

Hysteresis

518

30

G

This so-called algebraic convention supports arithmetic comparison of north and south polarity values, where the relative strength of the field is indicated

by the absolute value of B, and the sign indicates the polarity of the field (for example, a –100 G field and a 100 G field have equivalent strength, but

opposite polarity).

DEVICE QUALIFICATION PROGRAM

Contact Allegro for information.

EMC (Electromagnetic Compatibility) REQUIREMENTS

Contact Allegro for information.