Ultrasensitive Two-Wire Chopper-Stabilized
Unipolar Hall Effect Switches
A1145 and
A1146
4
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Characteristic Data
Supply Current (High) versus Ambient Temperature
at Various Levels of V
CC
(A1145 and A1146)
Supply Current (Low) versus Ambient Temperature
at Various Levels of V
CC
(A1145 and A1146)
Ambient Temperature, T
A
(癈)
Ambient Temperature, T
A
(癈)
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
at Various Levels of V
CC
(A1145 and A1146)
Operate Point versus Ambient Temperature
at Various Levels of V
CC
(A1145 and A1146)
Ambient Temperature, T
A
(癈)
Ambient Temperature, T
A
(癈)
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