AH1802
MICROPOWER, ULTRA-SENSITIVE OMNIPOLAR
HALL-EFFECT SENSOR SWITCH
 
AH1802  
Document number: 31170 Rev. 8 - 2 
4 of 11
www.diodes.com
December 2010
?Diodes Incorporated 
Magnetic Characteristics (T
A
 = 25?/SPAN>C, Vdd = 3V, Note 4 & 5) 
 
(1mT=10 Gauss)
Symbol
Characteristic
Min
Typ.
Max
Unit
Bops(south pole to brand side)
Operate Point
20
28
40
Gauss
Bopn(north pole to brand side)
-40
-28
-20
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:
4. Typical data is at T
A
 = 25癈, Vdd = 3V, and for design information only.
  5. The magnetic characteristics may vary with supply voltage, operating temperature and after soldering.
 
 
Bhy
Vsat
Vcc
Bopn    Brpn   0
( Magnetic flux density B )
Output
Turn on
Turn off
( off-state )
( on-state )
Bhy
Vsat
Vcc
Brps    Bops
0
( Magnetic flux density B )
Output
Turn off
Turn on
( off-state )
( on-state )
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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