Ah1822, Magnetic characteristics, Performance characteristics – Diodes AH1822 User Manual
Page 5: Micropower omnipolar hall-effect sensor switch
AH1822
MICROPOWER OMNIPOLAR HALL-EFFECT SENSOR
SWITCH
AH1822 Rev. 5
5 of 9
FEBRUARY 2009
©
Diodes Incorporated
Magnetic Characteristics
(T
A
=25
°C, Vdd=3V, Note 6, 7)
(1mT=10 Gauss)
Symbol
Characteristic
Min
Typ.
Max
Unit
Bops(south pole to brand side)
Operate Point
-
28
55
Gauss
Bopn(north pole to brand side)
-55
-28
-
Brps(south pole to brand side)
Release Point
10
20
-
Brpn(north pole to brand side)
-
-20
-10
Bhy(
Brpx
Bopx
−
)
Hysteresis
5
8
-
Notes: 6. Typical data is at Ta = 25
°C, Vdd = 3V, and for design information only.
7. Operating point and release point will vary with supply voltage and operating temperature.
B
hy
V
sat
V
cc
( O
u
tput Volta
g
e )
B
opn
B
rpn
0
( Magnetic flux density B )
Output
Turn on
Turn off
( off-state )
( on-state )
B
hy
V
sat
V
cc
( O
u
tput Volta
g
e )
B
rps
B
ops
0
( Magnetic flux density B )
Output
Turn off
Turn on
( off-state )
( on-state )
T
A
(
°C)
25
50
60
70
80
85
90
100
110
120
130
140
150
P
D
(mW)
230 184 166 147 129 120 110 92 74 55 37 18 0
P o w e r D is s ip a tio n C u rv e
0
1 0 0
2 0 0
3 0 0
0
2 5
5 0
7 5
1 0 0
1 2 5
1 5 0
T
A
(。 C )
P
D
(m W )
8 5
Performance Characteristics