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AH293
Low Voltage 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: 1.8V~5.75 V - Output current: IO( AVE ) = 400 mA - Package: SIP-5L, SOT23-5L, SOT89-5L
General Description
AH293 is a monolithic fan motor controller with Hall sensor's capability. It contains two complementary open-collector transistors for motor's coil driving, automatic lock current shutdown, and recovery protections. Besides, rotor-state detection (RD) output is for speed 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. These protecting actions are repeated and periodic during the blocked period. Until the blocking is removed, the motor recovers running normally.
Pin Configuration
RD 5 DOB 4
293
( Front View )
1 : RD 2 : VCC 3 : DO 4 : DOB 5 : GND
VCC 1
293
5 RD AH293 7 DOB 4 SOT89-5L
GND 2
3
1
2
DO 3
123 45
SIP-5L
VCC GND DO SOT23-5
Pin Descriptions
Symbol RD VCC DO DOB GND Description Rotor-state detection Input power Output pin Output pin Ground
Ordering Information
AH293 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 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. 0.5 Jun 18, 2004 1/9
AH293
Low 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
D1 Vcc (1.8V/5.75V) R pu
+
C1 10uF
293
Coil2
1 2 3 4 5
Coil1
RD (alarm)
GND
1.8V/5.75V DC Brush-less Fan with RD output function
Anachip Corp. www.anachip.com.tw 2/9
Rev 0.5 Jun 18, 2004
AH293
Low Voltage Hall-Effect Smart Fan Motor Controller Absolute Maximum Ratings
Characteristics Output Zener-breakdown Voltage Operating Supply Voltage Output Current Power Dissipation Operating Temperature Storage Temperature Maximum Junction Temp. PD Topr Tstg Tj (Ta = 25C) Symbol Vz VCC IO(AVE) IO(PEAK) SIP5 SOT23-5 SOT89-5 Rating 38 8 400 500 550 230 800 -20 ~ 100 -55 ~ 150 150 Unit V V mA mW C C C
Electrical Characteristics (Ta = 25 C, VCC = 5V, unless otherwise notice)
Characteristics Supply Voltage Supply current Locked Protection On Locked Protection Off Output saturation voltage Symbol Vcc
Icc Tlrp-on Tlrp-off
Conditions Operating Operating
Min. 1.8 -
Typ. 2.6 0.4 2.4 300 600 1.75 0.5
Max. 5.75 4.0
Unit V mA Sec Sec
VOUT( sat ) Rds(on) Vol
IO=180mA IO=350mA
-
-
mV ohm V
Output On resistance RD output Vds
IO=10mA
Magnetic Characteristics (Ta = 25 C, VCC = 5V, unless otherwise specified)
(1mT=10 Gauss)
Characteristics Symbol Min. Typ. Max. Unit
Operate Point Release Point Hysteresis
Bop Brp Bhy
--60 --
30 -30 60
60 ---
Gauss Gauss Gauss
Anachip Corp. www.anachip.com.tw 3/9
Rev 0.5 Jun 18, 2004
AH293
Low Voltage Hall-Effect Smart Fan Motor Controller Operating Characteristics
DOB
Output Voltage in Volts Output Voltage in Volts 12 10 8 6 4 ON 2 OP Vsat Brp 0 Bop Magnetic Flux Density in Gauss
DO
12 10 8 6 4 RP Vsat Brp 0 Bop Magnetic Flux Density in Gauss 2 ON
RP
OFF
OFF
OP
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 0.5 Jun 18, 2004
AH293
Low Voltage 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)
P d (m W )
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 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)
Ta (C)
800
105
640
110
576
115
512
120
480
125
448
130
416
135
384
140
352
145
320
150
Pd (mW)
P d (m W )
288
256
224
192
160
128
96
64
32
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 0.5 Jun 18, 2004
AH293
Low Voltage Hall-Effect Smart Fan Motor Controller Marking Information
(1)SIP-5L
( Top View ) Part Number
293 X XX X X
Blank : normal L : Lead Free Package ID Code 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 RC:AH293 Date code Y : Year M :Month(A~L)
XX YM X
(3)SOT89-5L
5
4
7
293 Y M X
1
2
3
ID code A~Z: Non-Lead Free a~z : Lead Free M : Month: A~L Y : Year: 0-9
Anachip Corp. www.anachip.com.tw 6/9
Rev 0.5 Jun 18, 2004
AH293
Low Voltage 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 0.5 Jun 18, 2004
AH293
Low Voltage Hall-Effect Smart Fan Motor Controller
(2) Package type: SOT23-5L
D e1
1(4x)
5
4 0.10 C 5x Seating Plane
E1 Y 1 X e 2 3 b
E
A
A2
A1
2(4x)
With Plating
b1
C
C1
Gauge Plane 0.25 mm
Base Metal
b
L L1
Symbol
Dimensions In Millimeters Min. 1.05 0.05 1.00 0.25 0.25 0.08 0.08 2.70 2.60 1.50 0.35 Nom. 1.20 0.10 1.10 0.40 0.11 2.85 2.80 1.60 0.45 0.60 Ref. 0.95 Bsc. 1.90 Bsc. o 5 5o 8o 1.067 0.432 Max. 1.35 0.15 1.20 0.55 0.45 0.20 0.15 3.00 3.00 1.70 0.55
Dimensions In Inches Min. 0.041 0.002 0.039 0.010 0.010 0.003 0.003 0.106 0.102 0.059 0.014 Nom. 0.047 0.004 0.043 0.016 0.004 0.112 0.110 0.063 0.018 0.024 Ref. 0.037 Bsc. 0.075 Bsc. o 5 5o 8o 0.042 0.017 Max. 0.053 0.006 0.047 0.022 0.018 0.008 0.006 0.118 0.118 0.067 0.022
A A1 A2 b b1 c c1 D E E1 L L1 e e1 1 2 X Y
0 3o 6o -
o
10 7o 10o -
o
0 3o 6o -
o
10 7o 10o -
o
Anachip Corp. www.anachip.com.tw 8/9
Rev 0.5 Jun 18, 2004
AH293
Low Voltage 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 0.5 Jun 18, 2004

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