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AH286
Hall-Effect Smart Fan Motor Controller Features
- On chip Hall sensor - Rotor-locked shutdown - Automatically restart - Rotor-state detection (RD) output - Buil t-in Zener protection for output driver - Operating voltage: 3.8V~20 V - 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
General Description
AH286 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
286 ( Front View )
1 : RD 2 : Vdd 3 : DO 4 : DOB 5 : GND
123 45
Pin Descriptions
Symbol RD Vdd DO DOB GND Description Rotor-state detection Input power Output pin Output pin Ground
SIP-5L
Vdd 5 Vdd 1 GND 2 DO 3 SOT89-5L 286 7 DOB 4 5 RD 286 DOB 4
1
2
3
RD GND DO SOT23-5
Ordering Information
AH286 X - X X X
Wafer Body Blank or A~Z : if necessary to specify
Package P: SIP-5L W: SOT23-5L Y: SOT89-5L
Lead L : Lead Free
Packing 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
AH286
Hall-Effect Smart Fan Motor Controller Block Diagram (SIP5)
Vdd 2
Lock shutdown and Automatic recovery Regulator
3
Hall Plate
DO
Amp.
Control Logic
4
DOB
5 GND
1 RD
Typical Application Circuit (SIP5)
D2 Vdd (12V) Rpu D1
1 2
286
Coil2
3 4 5
Coil1
RD (alarm)
C3
Notes: R1, R2: typical 56 C1, C2, C3: typical2.2 F The R, C value need to be fine tuned base on coils design.
GND
R1 C1
R2 C2
12V DC Brush-less Fan with RD output function
Anachip Corp. www.anachip.com.tw 2/9
Rev 1.0 Sep 29, 2005
AH286
Hall-Effect Smart Fan Motor Controller Absolute Maximum Ratings
Characteristics Supply Voltage Output Current IO(AVE) (Ta = 25C) Symbol Vdd SIP5/SOT89-5 SOT23-5 IO(PEAK) Power Dissipation Operating Temperature Storage Temperature Maximum Junction Temp. Thermal Resistance jc PD Topr Tstg Tj SIP5 SOT23-5 SOT89-5 SIP5 SOT23-5 SOT89-5 Rating 24 500 400 700 550 230 800 -40 ~ 100 -55 ~ 150 150 227 543 156 Unit V mA
mW C C C C/W
Electrical Characteristics (Ta = 25 C, Vdd = 12V, 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 Vdd Idd Ioff Tlrp-on Tlrp-off
VOUT( sat )
Conditions Operating Operating VOUT=24V
Min. 3.8 0.4 2.4
Typ. 2.0 < 0.1 0.5 3 375 625 1.25 0.5 42
Max. 20 4.0 10 0.6 3.6 500 900 1.67 60
Unit V mA A Sec Sec mV ohm V V
IO=300mA IO=500mA IO=300mA IO=10mA
35
Rds(on) Vol Vz
Magnetic Characteristics (Ta = 25 C, Vdd = 12V, 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 3/9
Rev 1.0 Sep 29, 2005
AH286
Hall-Effect Smart Fan Motor Controller Operating Characteristics
DOB DO
Output Voltage in Volts
RP
OFF
Output Voltage in Volts
12 10 8 6 4 2
OFF
12 10 8 6 4 2
OP
ON
OP Vsat
RP
ON
Vsat Brp 0 Bop
Brp
0
Bop
Magnetic Flux Density in Gauss
Magnetic Flux Density in Gauss
S
S
Marking side
S
Marking side
Marking side
N
( SOT23-5 )
N
( SIP5 )
N
( SOT89-5 )
Performance Characteristics (SIP5)
Ta (C) Pd (mW) Ta (C) Pd (mW)
P d (m W ) 600 500 400 300 200 100 0 0 25 50 75 100 125 150 T a ( 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
P o w e r D is s ip a tio n C u rve
Anachip Corp. www.anachip.com.tw 4/9
Rev 1.0 Sep 29, 2005
AH286
Hall-Effect Smart Fan Motor Controller Performance Characteristics (SOT23-5)
Ta (C) Pd (mW) 25 230 50 184 60 166 70 147 80 129 90 110 100 92 110 74 120 55 130 37 140 18 150 0
P d (m W )
P o w e r D is s ip a tio n C u rv e 300 200 100 0 0 25 50 75 100 125 150
T a ( C )
Performance Characteristics (SOT89-5)
Ta (C) Pd (mW) Ta (C) Pd (mW)
P d (m W )
25 800 105 288
50 640 110 256
60 576 115 224
70 512 120 192
75 480 125 160
80 448 130 128
85 416 135 96
90 384 140 64
95 352 145 32
100 320 150 0
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 5/9
Rev 1.0 Sep 29, 2005
AH286
Hall-Effect Smart Fan Motor Controller Marking Information
(1)SIP-5L
( Front View ) Part Number
286
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 R6:AH286 Date code Y : Year M :Month(A~L)
XX YM X
(3)SOT89-5L
5
4
7
286 Y M X
ID code A~Z : Non-Lead Free a~z : Lead Free M : Month: A~L Y : Year: 0-9
1
2
3
Anachip Corp. www.anachip.com.tw 6/9
Rev 1.0 Sep 29, 2005
AH286
Hall-Effect Smart Fan Motor Controller Package Information
(1)Package type: SIP-5L ( unit: mm / [inch] )
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] 2 ~ 5 3.65 0.1 [0.144 0.003] 0.48 0.1 [0.019 0.003] 14.3 0.3 [0.563 0.012] 0.41 0.03 [0.016 0.001] 0.73 0.1 [0.029 0.003] 2 ~ 3
0.95 0.03 [0.037 0.001]
0.38 0.03 [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
4
5
Anachip Corp. www.anachip.com.tw 7/9
Rev 1.0 Sep 29, 2005
AH286
Hall-Effect Smart Fan Motor Controller
(2) SOT23-5L
D
HE
E
GAUGE PLANE L L1
Y
X e
e1
VIEW C
1(4x)
A2
A
2(4x)
b(5x)
Symbol A A1 A2 b C D E HE L L1 e e1 1 2 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 -
A1
SEE VIEW C
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 -
Anachip Corp. www.anachip.com.tw 8/9
C
Rev 1.0 Sep 29, 2005
AH286
Hall-Effect Smart Fan Motor Controller
(3) Package type: SOT89-5L
A C D F
E
B 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 -
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 -
Anachip Corp. www.anachip.com.tw 9/9
Rev 1.0 Sep 29, 2005

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