ah284 Diodes, Inc., ah284 Datasheet - Page 4

• Manufacturer Part Number: ah284
• Description: Hall-effect Smart Fan Motor Controller
• Manufacturer: Diodes, Inc.

Electrical Characteristics
Truth Table
AH284 Rev. 5
Magnetic Characteristics
IN-
Symbol
H
V
L
R
-
Symbol
T
T
OUT
V
ds(on)
lrp-on
lrp-off
I
I
Vz
Bop
Bhy
Brp
dd
off
dd
(SAT
IN+
)
H
L
-
Supply Voltage
Supply Current
Output Leakage Current
Locked Protection On
Locked Protection Off
Output Saturation Voltage
Output On Resistance
Output Zener-Breakdown Voltage
CT
H
L
L
Characteristics
Characteristics
Operation Point
Release Point
Hysteresis
OUT1
off
H
L
(T
(T
HALL-EFFECT SMART FAN MOTOR CONTROLLER
A
A
www.diodes.com
OUT2
= 25 °C, V
= 25 °C, V
off
H
L
4 of 9
dd
dd
Lockup protection activated
Min.
= 12V, unless otherwise specified)
=12V, unless otherwise specified)
-60
10
--
Conditions
I
I
I
Operating
Operating
V
O
O
O
OUT
= 300mA
= 500mA
= 300mA
= 24V
Rotating
Rotating
Mode
Typ.
-30
30
60
Min
3.8
0.4
2.4
35
-
-
-
-
-
Max.
-10
60
--
< 0.1
Typ.
1.25
375
625
0.5
2.0
42
3
-
(1mT = 10 Gauss)
DECEMBER 2007
©
Diodes Incorporated
AH284
Max
1.67
500
900
4.0
0.6
3.6
20
10
60
Gauss
Gauss
Gauss
Unit
Unit
ohm
Sec
Sec
mA
mV
μA
V
V