5

A1145-DS, Rev. 6

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

115 Northeast Cutoff, Box 15036

www.allegromicro.com

Allegro MicroSystems, Inc.

Ultrasensitive Two-Wire Chopper-Stabilized Unipolar Hall Effect Switches

A1145 and A1146

Characteristic Data

Supply Current (High) versus Ambient Temperature

(A1145 and A1146)

Supply Current (Low) versus Ambient Temperature

(A1145 and A1146)

Ambient Temperature, T

Ambient Temperature, T

V

CC

3.5 V

12.0 V

24.0 V

V

CC

3.5 V

12.0 V

24.0 V

0

2

6

8

10

4

–50

0

50

100

150

200

–50

0

50

100

150

200

–50

0

50

100

150

200

Switchpoint Hysteresis versus Ambient Temperature

(A1145 and A1146)

Operate Point versus Ambient Temperature

(A1145 and A1146)

Ambient Temperature, T

Ambient Temperature, T

V

CC

3.5 V

12.0 V

24.0 V

V

CC

3.5 V

12.0 V

24.0 V

0

10

20

30

50

60

70

40

10

12

16

18

20

14

–50

0

50

100

150

200

5

0

10

15

25

30

40

35

20