Diodes AH291 - Manual (Page 4)

AH291
LOW VOLTAGE HALL-EFFECT SMART FAN MOTOR
CONTROLLER
AH291
Document number: DS31041 Rev. 8 - 2
4 of 9
www.diodes.com
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