Anachip AP1346WSA Two coil fan motor predriver Datasheet

AP1346/1347
Two Coil Fan Motor Predriver
„ Features
„ General Description
- Compatible to a Hall element
- Operating voltage (VCC) : 4V to 28V
- Lock shutdown and automatic restart
- Rotation detection (RD) output name as AP1347
- Speed indication output (FG) named as AP1346
- Output current IO=70mA (max)
- Operating temperature (Topr) : -30ºC to +85ºC
- SOP8 package
- Include Thermal Shutdown circuit
The AP1346/7 fan motor predriver is suited for
two-coil brush-less DC fan. All functions, including
lock shutdown, automatic restart, speed indication
(FG), have been integrated into one chip. When the
motor is under lock condition, lock shutdown
function turns off the output. When the lock
condition is removed, the IC automatically restarts
and allows DC fan to run. In addition, the FG
function is to indicate the rotation speed and the RD
function is to detect the motor status.
„ Application
- High voltage, high current brushless DC fan
„ Pin Assignment
„ Pin Descriptions
( Top view )
VCC
1
8
OUT1
Name
VCC
HS(+)
HS(+)
2
7
OUT2
FG /RD
FG/RD
3
6
CT
HS(-)
4
5
GND
HS(-)
GND
CT
OUT2
OUT1
AP1346/1347
SOP-8L
Description
Power input
Hall input
Speed
indication
/
detection
Hall input
Ground
Timing capacitor
Driver output
Driver output
Rotation
„ Ordering Information
AP134X X - X X X
Part Number
6: AP1346
7: AP1347
Wafer Body
Package
Lead
S: SOP-8L L: Lead Free
Blank or
A~Z : if necessary
Blank: Normal
to specify
Packing
Blank : Tube
A : Taping
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. 0.0 Jun 9, 2004
1/5
AP1346/1347
Two Coil Fan Motor Predriver
„ Block Diagram
VCC
1
Predriver 1
Reg.
HS(+)
2
+
3
7
OUT2
6
CT
5
GND
Automatic
Restart
Lock
Detection
HS(-)
OUT1
Control Logic
Hall
amp
-
FG/RD
Predriver 2
8
4
„ Application Circuit
D2
L1
D1
Voltage
Input
C1
VCC
R1
Q1
OUT1
Hall
element
Z11
Z1N
R4
HS(+)
L2
Q2
OUT2
R2
V1
AP1346/
AP1347
Z2N
R6
HS(-)
FG/RD
CT
C2
R5
Z21
output
GND
Anachip Corp.
www.anachip.com.tw
Rev 0.0 Jun 9, 2004
2/5
AP1346/1347
Two Coil Fan Motor Predriver
„ Absolute Maximum Ratings
(TA=25ºC)
Parameter
Symbol
Rating
Unit
Input voltage
VCC
30
V
Output current
IOUT
70
mA
Allowable power dissipation
PD
550*(note1)
mW
Operating temperature
TOPR
-30 to +85
ºC
Storage temperature
TSTG
-55 to +125
ºC
*note1 : Reduced by 5.5mW for each increase in Ta of 1ºC over 25 ºC
„ Electrical Characteristics ( T =25ºC, V
A
Parameter
Symbol
=12V, unless otherwise noted)
CC
Conditions
Min.
4
Rating
Typ.
Max.
-28
Unit
Input voltage
VIN
V
Hall input voltage (DC+AC)
VBH
Includes the amplitude of signal
1
--
VCC-0.5
V
Supply current
ICC
The output is off
--
4
5.5
mA
Hall amp input hysteresis (+)
VHYS+
Delta V when VBH=6V
3
--
15
mV
Hall amp input hysteresis (-)
VHYS-
Delta V when VBH=6V
-15
--
-3
mV
Charge current
ICHG
VCT = 1.5V
7.7
9.6
11.5
uA
Discharge current
IDHG
VCT = 1.5V
0.19
0.24
0.29
uA
Charge/discharge ratio
RCD
ICHG/IDCHG
32
40
48
--
Clamp voltage
VCL
1.6
2.0
2.4
V
Comparator voltage
VCP
0.8
1.0
1.2
V
10
--
10.5
--
-0.5
V
V
8
--
--
mA
Output high level
FG / RD pin output low
FG / RD pin sink current
capacity
VOH
IO = 10mA
VFGL / VRDL IFG = 5mA / IRD = 5mA
IFG / IRD
VFGL = 2V / VRDL = 2V
Anachip Corp.
www.anachip.com.tw
Rev 0.0 Jun 9, 2004
3/5
AP1346/1347
Two Coil Fan Motor Predriver
„ Performance Characteristics
25
550
95
242
Ta (°C)
Pd (mW)
Ta (°C)
Pd (mW)
50
440
100
220
60
396
105
198
70
352
110
176
80
308
115
154
85
286
120
132
90
264
125
110
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
85
100
125
150
T a (。 C )
Note:SOP-8L package.
„ Marking Information
(Top View)
8
Logo
6
5
Blank : normal
L : Lead Free Package
AC
AP1347
YY WW X X
Date code
X: internal code
WW: Xth week,01-52
Y: Year, "01"=2001
"02"=2002
~
Part Number
7
1
2
3
4
SOP-8L
Note: For AP1346, part number is marked as AP1346.
Anachip Corp.
www.anachip.com.tw
Rev 0.0 Jun 9, 2004
4/5
AP1346/1347
Two Coil Fan Motor Predriver
„ Package Information
H
E
Package Type: SOP-8L
L
VIEW "A"
D
0.015x45
7 (4X)
e
B
A1
C
A
A2
7 (4X)
VIEW "A"
y
Symbol
A
A1
A2
B
C
D
E
e
H
L
y
θ
Dimensions In Millimeters
Min.
Nom.
Max.
1.40
1.60
1.75
0.10
0.25
1.30
1.45
1.50
0.33
0.41
0.51
0.19
0.20
0.25
4.80
5.05
5.30
3.70
3.90
4.10
1.27
5.79
5.99
6.20
0.38
0.71
1.27
0.10
0O
8O
Anachip Corp.
www.anachip.com.tw
Dimensions In Inches
Min.
Nom.
Max.
0.055
0.063
0.069
0.040
0.100
0.051
0.057
0.059
0.013
0.016
0.020
0.0075
0.008
0.010
0.189
0.199
0.209
0.146
0.154
0.161
0.050
0.228
0.236
0.244
0.015
0.028
0.050
0.004
0O
8O
Rev 0.0 Jun 9, 2004
5/5
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