Ah291 – Diodes AH291 User Manual
Page 4
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AH291
LOW VOLTAGE HALL-EFFECT SMART FAN MOTOR
CONTROLLER
AH291
Document number: DS31041 Rev. 8 - 2
4 of 9
June 2010
© Diodes Incorporated
Magnetic Characteristics
(
T
A
= 25
°C, Vcc
= 24V, unless otherwise specified,
Note 3)
(1mT = 10 Gauss)
Symbol
Characteristics
Min
Typ.
Max
Unit
Bop Operation
Point
-
30
60
Gauss
Brp Release
Point
-60 -30
-
Gauss
Bhy Hysteresis
-
60
-
Gauss
Notes: 3. The magnetic characteristics may vary with supply voltage, operating temperature and after soldering.
Operating Characteristics
DOB DO
12
10
8
6
4
2
OFF
OP
RP
ON
O
u
tp
u
t V
o
lta
g
e
in
Vol
ts
12
10
8
6
4
2
OFF
RP
OP
ON
Ou
tp
u
t V
o
lta
g
e
in
Vo
lts
Bop
Brp
0
Bop
Brp
0
Magnetic Flux Density in Gauss
Magnetic Flux Density in Gauss
V
SAT
V
SAT
Marking
side
S
( SIP-4L )
N
Marking
side
S
( SOT89-5L )
N
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