High Voltage Hall-Effect Smart Fan Motor Controller
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
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 Configuration
289
( Front View )
1 : RD
2 : VCC
3 : DO
4 : DOB
5 : GND
1 2 3 4 5
Pin Descriptions
Symbol
RD
VCC
DO
DOB
GND
Description
Rotor-state detection
Input power
Output pin
Output pin
Ground
SIP-5L
VCC 1
GND 2
DO 3
SOT89-5L
289
5 RD
7 DOB
4
Ordering Information
AH289 X - X X X
Wafer Body
Blank or
A~Z : if necessary
to specify
Package
P: SIP-5L
Y: SOT89-5L
Lead
L : Lead Free
Blank: Normal
Packing
Blank : Tube or Bulk
A : Tape & Reel
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
AH289
High Voltage Hall-Effect Smart Fan Motor Controller
Block Diagram (SIP5)
VCC
2
Lock shutdown
and
Automatic recovery
Regulator
3
Hall
Plate
DO
Amp.
Control Logic
4
DOB
5
GND
1
RD
Typical Application Circuit (SIP5)
Vcc
(24V)
R
pu
D1
1
D2
289
Coil2
2
3
4
5
Coil1
RD
(alarm)
C1=1uF
GND
48V
48V
24V DC Brush-less Fan with RD output function
Anachip Corp.
www.anachip.com.tw
2/7
Rev 0.1 Jan 17, 2005
AH289
High Voltage Hall-Effect Smart Fan Motor Controller
Absolute Maximum Ratings
Characteristics
Supply Voltage
Output Current
Power Dissipation
Operating Temperature
Storage Temperature
Maximum Junction Temp.
Thermal Resistance
θjc
I
O(AVE)
P
D
Topr
Tstg
Tj
SIP5
SOT89-5
(Ta = 25°C)
Symbol
V
CC
SIP5/SOT89-5
I
O(PEAK)
SIP5
SOT89-5
Rating
30
400
700
550
800
-40 ~ 100
-55 ~ 150
150
227
156
Unit
V
mA
mW
°C
°C
°C
°C/W
°C/W
Electrical Characteristics
(
Ta = 25
°C,
V
CC
= 24V, unless otherwise notice)
Characteristics
Supply Voltage
Supply current
Output Leakage Current
Locked Protection On
Locked Protection Off
Output saturation voltage
Output On resistance
RD output Vds
Output Zener-breakdown Voltage
Symbol
Vcc
Icc
Ioff
Tlrp-on
Tlrp-off
V
OUT( sat )
Conditions
Operating
Operating
V
OUT
=24V
Min.
3.8
-
-
0.4
2.4
Typ.
-
2.0
< 0.1
0.46
2.76
450
680
2.25
0.3
55
Max.
28*
4.0
10
0.6
3.6
700
800
3.5
0.5
65
Unit
V
mA
µA
Sec
Sec
mV
ohm
V
V
I
O
=200mA
I
O
=300mA
I
O
=200mA
I
O
=10mA
-
-
-
-
42
Rds(on)
Vol
Vz
*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
Operate Point
Release Point
Hysteresis
Symbol
Bop
Brp
Bhy
Min.
10
-60
--
Typ.
30
-30
60
Max.
60
-10
--
Unit
Gauss
Gauss
Gauss
Anachip Corp.
www.anachip.com.tw
3/7
Rev 0.1 Jan 17, 2005
AH289
High Voltage Hall-Effect Smart Fan Motor Controller
Operating Characteristics
DOB
Output Voltage in Volts
DO
Output Voltage in Volts
RP
24
20
16
12
8
4
OFF
OFF
24
20
16
12
8
4
OP
ON
OP
Vsat
RP
ON
Vsat
Brp
0
Bop
Brp
0
Bop
Magnetic Flux Density in Gauss
Magnetic Flux Density in Gauss
S
Marking side
S
Marking side
N
( SIP5 )
N
( SOT89-5 )
Performance Characteristics (SIP5)
Ta (°C)
Pd (mW)
Ta (°C)
Pd (mW)
Pd (mW )
600
500
400
300
200
100
0
0
15
30
45
60
75
90
105
100
120
135
150
Ta (。C)
25
550
105
198
50
440
110
176
60
396
115
154
70
352
120
132
80
308
125
110
85
286
130
88
90
264
135
66
95
242
140
44
100
220
150
0
Power Dissipation Curve
Anachip Corp.
www.anachip.com.tw
4/7
Rev 0.1 Jan 17, 2005
AH289
High Voltage Hall-Effect Smart Fan Motor Controller
