Sensitive Two-Wire Chopper-Stabilized
Unipolar Hall Effect Switches
A1140, A1141,
A1142, and A1143
Characteristic Data
Supply Current (Low) versus Ambient Temperature
at Various Levels of VCC
(A1140 and A1141)
Supply Current (Low) versus Ambient Temperature
at Various Levels of VCC
(A1142 and A1143)
10
10
8
8
VCC
3.5 V
VCC
3.5 V
6
4
6
4
12.0 V
24.0 V
12.0 V
24.0 V
2
0
2
0
–50
0
50
100
150
200
–50
0
50
100
150
200
Ambient Temperature, TA (°C)
Ambient Temperature, TA (°C)
Supply Current (High) versus Ambient Temperature
at Various Levels of VCC
(A1140, A1141, A1142, and A1143)
20
18
VCC
3.5 V
16
14
12.0 V
24.0 V
12
10
–50
0
50
100
150
200
Ambient Temperature, TA (°C)
Operate Point versus Ambient Temperature
at Various Levels of VCC
Switchpoint Hysteresis versus Ambient Temperature
at Various Levels of VCC
(A1140, A1141, A1142, and A1143)
(A1140, A1141, A1142, and A1143)
110
100
90
10
8
VCC
3.5 V
VCC
6
4
3.5 V
12.0 V
24.0 V
80
12.0 V
24.0 V
70
2
60
50
–50
0
–50
0
50
100
150
200
0
50
100
150
200
Ambient Temperature, TA (°C)
Ambient Temperature, TA (°C)
Allegro MicroSystems, Inc.
115 Northeast Cutoff, Box 15036
5
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
ALLEGRO [ ALLEGRO MICROSYSTEMS ]
