3

A3241-DS, Rev. 2

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

115 Northeast Cutoff, Box 15036

www.allegromicro.com

Allegro MicroSystems, Inc.

Chopper-Stabilized Unipolar Hall Effect Switches

A3241 and A3242

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

A3241

50

95

135

G

A3242

120

150

200

G

Release Point

A3241

40

70

110

G

A3242

110

125

190

G

Hysteresis

A3241

10

25

42

G

A3242

10

25

40

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.