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AH284 Datasheet(PDF) 4 Page - Diodes Incorporated

Part # AH284
Description  HALL-EFFECT SMART FAN MOTOR CONTROLLER
PDF  9 Pages
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Manufacturer  DIODES [Diodes Incorporated]
Direct Link  http://www.diodes.com
Logo DIODES - Diodes Incorporated

AH284 Datasheet(HTML) 4 Page - Diodes Incorporated

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AH284
HALL-EFFECT SMART FAN MOTOR CONTROLLER
AH284 Rev. 3
4 of 9
JANUARY 2007
www.diodes.com
© Diodes Incorporated
Electrical Characteristics (TA = 25 °C, Vdd =12V, unless otherwise specified)
Characteristics
Symbol
Conditions
Min.
Typ.
Max.
Unit
Supply Voltage
Vdd
Operating
3.8
-
20
V
Supply Current
Idd
Operating
-
2.0
4.0
mA
Output Leakage Current
Ioff
VOUT = 24V
-
< 0.1
10
µA
Locked Protection On
Tlrp-on
0.4
0.5
0.6
Sec
Locked Protection Off
Tlrp-off
2.4
3
3.6
Sec
IO = 300mA
-
375
500
Output Saturation Voltage
)
( SAT
OUT
V
IO = 500mA
-
625
900
mV
Output On Resistance
Rds(on)
IO = 300mA
-
1.25
1.67
ohm
Output Zener-Breakdown Voltage
Vz
35
42
60
V
Truth Table
IN-
IN+
CT
OUT1
OUT2
Mode
H
L
L
H
L
Rotating
L
H
L
L
H
Rotating
-
-
H
off
off
Lockup protection activated
Magnetic Characteristics (TA = 25 °C, Vdd = 12V, unless otherwise specified)
(1mT = 10 Gauss)
Characteristics
Symbol
Min.
Typ.
Max.
Unit
Operation Point
Bop
10
30
60
Gauss
Release Point
Brp
-60
-30
-10
Gauss
Hysteresis
Bhy
--
60
--
Gauss



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