AH289
High Voltage Hall-Effect Smart Fan Motor Controller
This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of
this product. No rights under any patent accompany the sale of the product.
Rev. 0.1 Jan 17, 2005
1/7
Features
- On chip Hall sensor
- Rotor-locked shutdown
- Automatically restart
- Rotor-state detection (RD) output
- Built-in Zener protection for output driver
- Operating voltage: 3.8V~28V
- Output current: I
O(AVE)
= 400mA
- Package: SIP-5L, SOT89-5L
Pin Configuration
1 : RD
2 : VCC
3 : DO
4 : DOB
( Front View )
1
5
4
3
2
289
5 : GND
General Description
AH289 is a monolithic fan motor controller with Hall
sensor's capability. It contains two complementary
open-drain transistors for motor's coil driving,
automatic lock current shutdown, and recovery
protections. In addition, rotor-state detection (RD)
output is for Rotor-state detection.
To avoid coil burning, rotor-lock shutdown detection
circuit shut down the output driver if the rotor is
blocked and then the automatic recovery circuit will
try to restart the motor. This function repeats while
the rotor is blocked. Until the blocking is removed,
the motor recovers running normally.
Pin Descriptions
Symbol
Description
RD
Rotor-state detection
VCC Input
power
DO Output
pin
DOB Output
pin
GND Ground
SIP-5L
1
2
3
74
5
DOB
DO
GND
RD
VCC
SOT89-5L
289
Ordering Information
AH289 X - X X X
Packing
Blank : Tube or Bulk
A : Tape & Reel
P: SIP-5L
Y: SOT89-5L
Package
Lead
L : Lead Free
Blank: Normal
Wafer Body
Blank or
A~Z : if necessary
to specify
AH289
High Voltage Hall-Effect Smart Fan Motor Controller
Anachip Corp.
www.anachip.com.tw
Rev 0.1 Jan 17, 2005
2/7
Block Diagram (SIP5)
Hall
Plate
Control Logic
Regulator
Lock shutdown
and
Automatic recovery
VCC
GND
DOB
DO
Amp.
2
3
4
5
1
RD
Typical Application Circuit (SIP5)
289
1
5
4
3
2
Vcc
(24V)
Coil2
Coil1
R
pu
RD
(alarm)
GND
D2
48V
48V
D1
C1=1uF
24V DC Brush-less Fan with RD output function
AH289
High Voltage Hall-Effect Smart Fan Motor Controller
Anachip Corp.
www.anachip.com.tw
Rev 0.1 Jan 17, 2005
3/7
Absolute Maximum Ratings
(Ta = 25
C)
Characteristics
Symbol
Rating
Unit
Supply Voltage
V
CC
30
V
I
O(AVE)
SIP5/SOT89-5
400
Output Current
I
O(PEAK)
700
mA
SIP5 550
Power Dissipation
P
D
SOT89-5 800
mW
Operating Temperature
Topr
-40 ~ 100
C
Storage Temperature
Tstg
-55 ~ 150
C
Maximum Junction Temp.
Tj
150
C
SIP5 227
C/W
Thermal Resistance
jc
SOT89-5 156
C/W
Electrical Characteristics
(
Ta = 25
C, V
CC
= 24V, unless otherwise notice)
Characteristics
Symbol
Conditions
Min.
Typ.
Max.
Unit
Supply Voltage
Vcc
Operating
3.8
-
28*
V
Supply current
Icc
Operating
-
2.0
4.0
mA
Output Leakage Current
Ioff
V
OUT
=24V -
<
0.1
10
A
Locked Protection On
Tlrp-on
0.4
0.46
0.6
Sec
Locked Protection Off
Tlrp-off
2.4
2.76
3.6
Sec
I
O
=200mA -
450
700
Output saturation voltage
)
sat
(
OUT
V
I
O
=300mA -
680
800
mV
Output On resistance
Rds(on)
I
O
=200mA -
2.25
3.5
ohm
RD output Vds
Vol
I
O
=10mA
-
0.3
0.5
V
Output Zener-breakdown Voltage
Vz
42
55
65
V
*Note: Please watch out the current limit issue when the operation voltage is over 26.4V, because of the different efficiency in the coil.
Magnetic Characteristics
(
Ta = 25
C, V
CC
= 24V, unless otherwise specified)
(1mT=10 Gauss)
Characteristics
Symbol
Min.
Typ.
Max.
Unit
Operate Point
Bop
10
30
60
Gauss
Release Point
Brp
-60
-30
-10
Gauss
Hysteresis Bhy
--
60
--
Gauss
AH289
High Voltage Hall-Effect Smart Fan Motor Controller
Anachip Corp.
www.anachip.com.tw
Rev 0.1 Jan 17, 2005
4/7
Operating Characteristics
DOB DO
24
20
16
12
8
4
OFF
OP
RP
ON
Out
p
ut
V
o
l
t
ag
e
in V
o
l
t
s
24
20
16
12
8
4
OFF
RP
OP
ON
O
u
t
p
u
t
Vo
lta
g
e
in
Vo
lts
Bop
Brp
0
Bop
Brp
0
Magnetic Flux Density in Gauss
Magnetic Flux Density in Gauss
Vsat
Vsat
Marking side
S
( SIP5 )
N
Marking side
S
( SOT89-5 )
N
Performance Characteristics (SIP5)
Ta (
C)
25
50
60
70
80
85
90
95
100
Pd
(mW)
550 440 396 352 308 286 264 242 220
Ta (
C)
105
110
115
120
125
130
135
140
150
Pd
(mW)
198 176 154 132 110 88 66 44 0
Power Dissipation Curve
0
100
200
300
400
500
600
0
15
30
45
60
75
90
105
120
135
150
Ta (C)
Pd (mW )
100
AH289
High Voltage Hall-Effect Smart Fan Motor Controller
Anachip Corp.
www.anachip.com.tw
Rev 0.1 Jan 17, 2005
5/7
Performance Characteristics (SOT89-5)
Ta (
C)
25
50
60
70
75
80
85
90
95
100
Pd (mW)
800 640 576
512
480
448
416
384 352 320
Ta (
C)
105
110
115
120
125
130
135
140
145
150
Pd (mW)
288 256 224
192
160
128
96 64 32 0
P o w e r D i s s i p a t i o n C u r v e
0
1 0 0
2 0 0
3 0 0
4 0 0
5 0 0
6 0 0
7 0 0
8 0 0
9 0 0
0
2 5
5 0
7 5
1 0 0
1 2 5
1 5 0
T a ( C )
P d ( m W )
Marking Information
(1)SIP-5L
289
Part Number
Year:
( Top View )
"2" = 2002
"1" = 2001
X XX X X
Nth week: 01~52
ID Code
Blank : normal
L : Lead Free Package
(2)SOT89-5L
1
2
3
5
7
4
289 Y M X
M : Month: A~L
Y : Year: 0-9
ID code
A~Z : Non-Lead Free
a~z : Lead Free
PDF 
ZIP