Anachip AH287U-PA High voltage hall-effect smart fan motor controller Datasheet

AH287
High Voltage Hall-Effect Smart Fan Motor Controller
„ Features
„ General Description
- On chip Hall sensor
- Rotor-locked shutdown
- Automatically restart
- Built-in Zener protection for output driver
- Operating voltage: 3.8V~28V
- Output current: IO(AVE) = 400mA
- Package: SIP-4L, SOT89-5L
AH287 is a monolithic fan motor controller with Hall
sensor’s capability. It contains two complementary
open-drain drivers for motor’s coil driving, automatic
lock shutdown and restart function 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
rotor is blocked. Until the blocking is removed, the
motor recovers running normally.
„ Pin Assignment
„ Pin Descriptions
Name
VCC
DO
DOB
GND
NC
Front View
287
1 : VCC
2 : DO
Description
Input power
Output pin
Output pin
Ground
Not connected
3 : DOB
1 2
3
4
4 : GND
SIP-4L
VCC 1
GND 2
5 NC
287
DO 3
74 DOB
SOT89-5L
„ Ordering Information
AH287 X - X X X
Wafer Body
Blank or
A~Z : if necessary
to specify
Package
Lead
Packing
P: SIP-4L
Y: SOT89-5L
L : Lead Free
Blank: Normal
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
AH287
High Voltage Hall-Effect Smart Fan Motor Controller
„ Block Diagram (SIP4)
VCC
1
Lock shutdown
and
Automatic recovery
Regulator
Hall
Plate
2
DO
3
DOB
Control Logic
Amp.
4
GND
„ Typical Application Circuit (SIP4)
24V
VCC
D2
L2
287
D1
1
2
3
L1
4
GND
DOB
C1=1uF
48V
DO
48V
24V brush-less DC fan
Anachip Corp.
www.anachip.com.tw
Rev 0.1 Jan 17, 2005
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AH287
High Voltage Hall-Effect Smart Fan Motor Controller
„ Absolute Maximum Ratings
(Ta = 25°C)
Characteristics
Symbol
Supply Voltage
Output Current
Power Dissipation
Rating
VCC
SIP4/SOT89-5
IO(AVE)
IO(PEAK)
SIP4
SOT89-5
Topr
Tstg
Tj
SIP4
SOT89-5
PD
Operating Temperature
Storage Temperature
Maximum Junction Temp.
Thermal Resistance
θjc
Unit
30
400
700
550
800
-40 ~ 100
-55 ~ 150
150
227
156
V
mA
mW
°C
°C
°C
°C/W
°C/W
„ Electrical Characteristics (Ta = 25 °C, VCC =24V, unless otherwise specified)
Characteristics
Symbol
Conditions
Min.
Typ.
Max.
Unit
Supply Voltage
Supply current
Output Leakage Current
Locked Protection On
Locked Protection Off
Vcc
Icc
Ioff
Tlrp-on
Tlrp-off
Operating
Operating
VOUT=24V
VOUT( sat )
Output On resistance
Output Zener-breakdown Voltage
Rds(on)
Vz
2.0
< 0.1
0.46
2.76
450
680
2.25
55
28*
4.0
10
0.6
3.6
700
800
3.5
65
V
mA
µA
Sec
Sec
Output saturation voltage
3.8
0.4
2.4
42
IO=200mA
IO=300mA
IO=200mA
mV
ohm
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, VCC = 24V, 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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www.anachip.com.tw
Rev 0.1 Jan 17, 2005
3/7
AH287
High Voltage Hall-Effect Smart Fan Motor Controller
„ Operating Characteristics
24
RP
DO
Output Voltage in Volts
Output Voltage in Volts
DOB
OFF
20
16
12
8
4
ON
OP
Vsat
Brp
0
24
OFF
OP
20
16
12
8
4
RP
ON
Vsat
Bop
Brp
Magnetic Flux Density in Gauss
0
Bop
Magnetic Flux Density in Gauss
S
S
Marking side
Marking side
N
N
( SIP4 )
( SOT89-5 )
„ Performance Characteristics (SIP4)
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
Power Dissipation Curve
Pd (mW )
600
500
400
300
200
100
0
0
15
30
45
60
75
Anachip Corp.
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90
105
100
120
135
150
Ta (。C)
Rev 0.1 Jan 17, 2005
4/7
AH287
High Voltage Hall-Effect Smart Fan Motor Controller
„ 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 )
„ Marking Information
(1)SIP-4L
( Top View )
287
X XX X X
Part Number
Blank : normal
L : Lead Free Package
ID Code
Nth week: 01~52
Year: "1" = 2001
"2" = 2002
(2)SOT89-5L
4
7
5
ID code
A~Z : Non-Lead Free
a~z : Lead Free
287 Y M X
1
2
M : Month: A~L
Y : Year: 0-9
3
Anachip Corp.
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Rev 0.1 Jan 17, 2005
5/7
AH287
High Voltage Hall-Effect Smart Fan Motor Controller
„ Package Information
(1)SIP-4L
Active Area Depth
Package Sensor Location
Marking side
1.97mm
1.04mm
1
0.7mm
2
3
4
Package Dimension
o
5 -7
o
14.25mm
+/-1.25mm
1.55mm
+/-0.1mm
1.03mm
+/-0.1
o
o
3 -5
0.41mm
+/-0.03mm
3.81mm
+/-0.03mm
0.46mm +/-0.03mm
287
5.22mm
+/-0.1mm
4.20mm
+/-0.1mm
o
0.38mm
+/-0.03mm
o
3.65mm
+/-0.1mm
0.30mm
+/-0.1mm
5 -7
o
3 -5
o
0.2mm Max.
1.42mm+/-0.1mm
Anachip Corp.
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1.27mm
+/-0.03mm
Rev 0.1 Jan 17, 2005
6/7
AH287
High Voltage Hall-Effect Smart Fan Motor Controller
(2) 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 0.1 Jan 17, 2005
7/7
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