Anachip AH285R-YL Hall-effect smart fan motor controller Datasheet

AH285
Hall-Effect Smart Fan Motor Controller
„ Features
„ General Description
- On chip Hall sensor
- Rotor-locked shutdown
- Automatically restart
- Frequency generator (FG) output
- Buil t-in Zener protection for output driver
- Operating voltage: 3.8V~20V
- Output current: IO(AVE) = 500mA for SIP-5/SOT89-5
- Output current: IO(AVE) = 400mA for SOT23-5
- Package: SIP-5L, SOT23-5L, SOT89-5L
AH285 is a monolithic fan motor controller with Hall
sensor’s capability. It contains two complementary
open-drain transistors as motor coil drivers,
automatic lock current shutdown, and recovery
protections. Additional, frequency generator (FG)
output is for speed detection relatively.
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
„ Pin Descriptions
Symbol
( Front View )
285
FG
Vdd
DO
DOB
GND
1 : FG
2 : Vdd
3 : DO
4 : DOB
Description
Frequency generation
Input power
Output pin
Output pin
Ground
5 : GND
1 2 3 4 5
SIP-5L
DOB
4
Vdd
5
Vdd 1
GND 2
5 FG
285
285
DO 3
74 DOB
SOT89-5L
1
FG
2
3
GND DO
SOT23-5
„ Ordering Information
AH285 X - X X X
Wafer Body
Package
Lead
Packing
Blank or
A~Z : if necessary
to specify
P: SIP-5L
W: SOT23-5L
Y: SOT89-5L
L : Lead Free
Blank : Bulk
A : Tape & Reel
(for SOT Packages Only)
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. 1.0 Sep 29, 2005
1/9
AH285
Hall-Effect Smart Fan Motor Controller
„ Block Diagram (SIP5)
Vdd
2
Lock shutdown
and
Automatic recovery
Regulator
Hall
Plate
3
DO
4
DOB
Control Logic
Amp.
5
1
GND
FG
„ Typical Application Circuit (SIP5)
D2
Vdd
(12V)
R pu
285
D1
Coil2
1
2
3
4
Coil1
5
GND
FG
C3
Notes: R1, R2: typical 56 Ω
C1, C2, C3: typical 2.2µ F
The R, C value need to be fine tuned
base on coils design.
R1
R2
C1
C2
12V DC Brush-less Fan with FG output function
Anachip Corp.
www.anachip.com.tw
Rev 1.0 Sep 29, 2005
2/9
AH285
Hall-Effect Smart Fan Motor Controller
„ Absolute Maximum Ratings
(Ta = 25°C)
Characteristics
Symbol
Supply Voltage
Output Current
Rating
Vdd
SIP5/SOT89-5
SOT23-5
IO(AVE)
IO(PEAK)
Power Dissipation
SIP5
SOT23-5
SOT89-5
PD
Operating Temperature
Storage Temperature
Maximum Junction Temp.
Topr
Tstg
Tj
Thermal Resistance
SIP5
SOT23-5
SOT89-5
θjc
Unit
24
500
400
700
550
230
800
-40 ~ 100
-55 ~ 150
150
227
543
156
V
mA
mW
°C
°C
°C
°C/W
„ Electrical Characteristics (Ta = 25 °C, Vdd = 12V, unless otherwise notice)
Characteristics
Symbol
Conditions
Min.
Typ.
Max.
Unit
Supply Voltage
Supply current
Output Leakage Current
Locked Protection On
Locked Protection Off
Vdd
Idd
Ioff
Tlrp-on
Tlrp-off
Operating
Operating
VOUT=24V
VOUT( sat )
Output On resistance
FG output Vds
Output Zener-breakdown Voltage
Rds(on)
Vol
Vz
2
< 0.1
0.5
3
375
625
1.25
0.5
42
20
4
10
0.6
3.6
500
900
1.67
60
V
mA
µA
Sec
Sec
Output saturation voltage
3.8
0.4
2.4
35
IO=300mA
IO=500mA
IO=300mA
IO=10mA
mV
ohm
V
V
„ Magnetic Characteristics (Ta = 25 °C, Vdd = 12V, unless otherwise specified)
(1mT=10 Gauss)
Characteristics
Symbol
Min.
Typ.
Max.
Unit
Operate Point
Release Point
Hysteresis
Bop
Brp
Bhy
10
-60
-
30
-30
60
60
-10
-
Gauss
Gauss
Gauss
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Rev 1.0 Sep 29, 2005
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AH285
Hall-Effect Smart Fan Motor Controller
„ Operating Characteristics
DO
12
RP
Output Voltage in Volts
Output Voltage in Volts
DOB
OFF
10
8
6
4
2
ON
OP
Vsat
Brp
0
12
OFF
8
6
4
2
RP
ON
Vsat
Bop
Brp
Magnetic Flux Density in Gauss
S
OP
10
0
Bop
Magnetic Flux Density in Gauss
S
S
Marking side
Marking side
Marking side
N
N
N
( SOT23-5 )
( SIP5 )
( SOT89-5 )
„ Performance Characteristics (SIP5)
25
550
105
198
Ta (°C)
Pd (mW)
Ta (°C)
Pd (mW)
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
P o w e r D is s ip a tio n C u rve
P d (m W )
600
500
400
300
200
100
0
0
25
50
75
100
125
150
T a (。 C )
Anachip Corp.
www.anachip.com.tw
Rev 1.0 Sep 29, 2005
4/9
AH285
Hall-Effect Smart Fan Motor Controller
„ Performance Characteristics (SOT23-5)
Ta (°C)
25
50
60
70
80
90
100
110
120
130
140
150
Pd (mW)
230
184
166
147
129
110
92
74
55
37
18
0
P o w e r D is s ip a tio n C u rv e
P d (m W )
300
200
100
0
0
25
50
75
100
125
150
T a (。 C )
„ 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 d (m W )
P o w e r D is s ip a tio n C u r v e
900
800
700
600
500
400
300
200
100
0
0
25
50
75
100
125
150
T a (。 C )
Anachip Corp.
www.anachip.com.tw
Rev 1.0 Sep 29, 2005
5/9
AH285
Hall-Effect Smart Fan Motor Controller
„ Marking Information
(1)SIP-5L
( Front View )
285
Part Number
X XX X x
Wafer Lot ID: L & a~z
is lead-free products
ID Code: A ~ Z
Nth week: 01~52
Year: "1" = 2001
"2" = 2002
(2)SOT23-5L
(Top View)
ID code
A~Z: Non-Lead Free
a~z: Lead Free
XX YM X
R5:AH285
Date code
Y : Year
M :Month(A~L)
(3)SOT89-5L
4
7
5
ID code
A~Z : Non-Lead Free
a~z : Lead Free
285 Y M X
1
2
M : Month: A~L
Y : Year: 0-9
3
Anachip Corp.
www.anachip.com.tw
Rev 1.0 Sep 29, 2005
6/9
AH285
Hall-Effect Smart Fan Motor Controller
„ Package Information
( unit: mm / [inch] )
(1)Package type: SIP-5L
5.22 ± 0.1
[0.206 ± 0.003 ]
2° ~ 3°
2-0.3C
[0.079-0.012C]
2° ~ 5°
1.55 ± 0.1
[0.061 ± 0.003]
4.2 REF
[0.165 REF]
0.73 ± 0.1
[0.029 ± 0.003]
2° ~ 3°
2° ~ 5°
3.65 ± 0.1
[0.144 ± 0.003]
0.48 ± 0.1
[0.019 ± 0.003]
14.3 ± 0.3
0.41 ± 0.03
[0.563 ± 0.012]
[0.016 ± 0.001]
0.95 ± 0.03
0.38 ± 0.03
[0.037 ± 0.001]
[0.015 ± 0.001]
„ Location of Sensing Point
2.006 mm
[0.079 inch]
( Top View)
1.016 mm
[0.04 inch]
1
2
3
Anachip Corp.
www.anachip.com.tw
4
5
Rev 1.0 Sep 29, 2005
7/9
AH285
Hall-Effect Smart Fan Motor Controller
(2) SOT23-5L
GAUGE PLANE
Y
E
HE
C
D
L
θ
L1
X
e1
VIEW C
e
θ 2(4x)
A
SEE VIEW C
A1
A2
θ1(4x)
b(5x)
Symbol
A
A1
A2
b
C
D
E
HE
L
L1
e
e1
θ
θ1
θ2
X
Y
Dimensions In Millimeters
Min.
1.05
0.05
1.00
0.25
0.08
2.70
1.50
2.60
0.30
0.50
1.80
0.85
0o
3o
o
6
-
Nom.
1.10
2.90
1.60
2.80
0.60
1.90
0.95
5o
5o
o
8
1.067
0.432
Max.
1.35
0.15
1.20
0.50
0.20
3.00
1.70
3.00
0.60
0.70
2.00
1.05
10o
7o
o
10
-
Anachip Corp.
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Dimensions In Inches
Min.
0.041
0.002
0.039
0.010
0.003
0.106
0.059
0.102
0.012
0.020
0.071
0.033
0o
3o
o
6
-
Nom.
0.043
0.114
0.063
0.110
0.024
0.075
0.037
5o
5o
o
8
0.042
0.017
Max.
0.053
0.006
0.047
0.020
0.008
0.118
0.067
0.118
0.024
0.028
0.079
0.041
10o
7o
o
10
-
Rev 1.0 Sep 29, 2005
8/9
AH285
Hall-Effect Smart Fan Motor Controller
(3) Package type: SOT89-5L
A
C
D
F
B
E
K
J
F
L
I
H
G
Package Sensor Location
Y
X
Symbol
A
B
C
D
E
F
G
H
I
J
K
L
X
Y
Dimensions In Millimeters
Min.
Nom.
Max.
4.40
4.50
4.60
4.05
4.15
4.25
1.50
1.60
1.70
1.30
1.40
1.50
2.40
2.50
2.60
0.80
3.00 Ref.
1.50 Ref.
0.40
0.46
0.52
1.40
1.50
1.60
0.35
0.39
0.43
5o Typ.
1.90
1.65
-
Anachip Corp.
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Dimensions In Inches
Min.
Nom.
Max.
0.173
0.177
0.181
0.159
0.163
0.167
0.059
0.063
0.067
0.051
0.055
0.059
0.094
0.098
0.102
0.031
0.118 Ref.
0.059 Ref.
0.016
0.018
0.020
0.055
0.059
0.063
0.014
0.015
0.017
5o Typ.
0.075
0.065
-
Rev 1.0 Sep 29, 2005
9/9
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