Ah1888 – Diodes AH1888 User Manual
Page 5
AH1888
MICROPOWER, GENERAL-SENSITIVE HALL EFFECT
SWITCH
AH1888
Document number: DS31565 Rev. 8 - 2
5 of 11
February 2012
© Diodes Incorporated
Magnetic Characteristics
(T
A
= 25
°C, Vdd = 1.8V ~ 3.0V, Note 2 & 3)
(1mT=10 Gauss)
Symbol
Characteristic
Min
Typ.
Max
Unit
Bops(south pole to brand side)
Operate Point
- 61 79
Gauss
Bopn(north pole to brand side)
-79
-61
-
Brps(south pole to brand side)
Release Point
35 53 -
Brpn(north pole to brand side)
-
-53
-35
Bhy(
Brpx
Bopx
−
)
Hysteresis 3 8 -
Notes:
2. Typical data is at Vdd = 3V.
3. The magnetic characteristics may vary with supply voltage, operating temperature and after soldering.
B
hy
V
sat
V
dd
(
O
ut
p
u
t
V
o
lt
a
ge
)
B
opn
B
rpn
0
( Magnetic flux density B )
Turn on
Turn off
( off-state )
( on-state )
B
hy
V
sat
V
dd
(
O
ut
p
u
t
V
o
lt
a
ge
)
B
rps
B
ops
0
( Magnetic flux density B )
Turn off
Turn on
( off-state )
( on-state )
N
N
S
S
Output 1 ( Active Low )
Output 1 ( Active Low )
B
hy
V
sat
V
dd
(
Out
pu
t
V
o
lt
a
g
e
)
B
opn
B
rpn
0
( Magnetic flux density B )
Turn on
Turn off
( off-state )
( on-state )
B
hy
V
sat
V
dd
(
Out
pu
t
V
o
lt
a
g
e
)
B
rps
B
ops
0
( Magnetic flux density B )
Turn off
Turn on
( off-state )
( on-state )
N
N
S
S
Output 2 ( Active High )
Output 2 ( Active High )