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Электронный компонент: HA13566AF

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HA13566AF
Combo (Spindle & VCM) Driver
ADE-207-250 (Z)
1st Edition
December 1997
Description
The HA13566AF is combination of Spindle and VCM Driver designed for HDD and have following
functions and features.
Functions
1.0 A max/3-phase spindle motor driver
400 mA max VCM driver
100 mA max retract driver
11 bit serial interface
9 bit DAC for VCM control
Commutation logic for sensor-less motor
Center tap pull-up driver for half wave driver
Soft switching matrix
Charge pump
Booster
Power monitor
OTSD
Features
Low output saturation voltage
Spindle driver
1.0 V typ (@0.8 A)
0.2 V typ (@0.1 A)
VCM driver
1.0 V typ (@400 mA)
Soft switching drive
Minimum surface mount package
body size 7
7 mm
HA13566AF
2
Pin Arrangement
25
26
27
28
1 2 3
TAB
4
5 6
10
9
8
7
14
13
12
11
TAB
20 19
TAB
17 16 15
21
22
23
24
TAB
R
S
VCMN
VCMP
CT
W
V
R
NF
PCOMP
DACOUT
POWGOOD
CHAGPMP
DATA
CLK
SERENAB
COMM
PHASE
U
VCMIN
V
CC2
VB
BC1
BC2
LVI1
RETOUT
RETPOW
SPNCOMP
VREF2
CDELAY
18
(Top view)
HA13566AF
3
Block Diagram
V
CC2
C101
R
NF
C102
RETPOW
R101
R103
C103
R
TAB
POWGOOD
Serial port
(11 bit)
VCM
Driver
N
P
Retract
POWGOOD
SPNENAB
Current
control
Booster
Soft
switching
matrix
PHASE
COMM
CHAGPMP
R2
C1
C2
C105
C106
CLK
(10MHz Max)
DATA
SERENAB
SPNENAB
BRAKE
HALF
EXTCOM
SOFTSW
RETRACT
FBOOST
V
CC2
V
CC
SOFTSW
2
S
VCMENAB
C107
V
CC2
R104
C104
POR
delay
LVI
LVI1
R1
VREF2 (1.25 V)
Commutation
logic
B - EMF
Amps
Spindle
driver
U
V
W
Charge
pump
Center
tap
pull-up
HALF
DAC
(9 bit)
CDELAY
VB
SPNCOMP
RS
VCMP
VCMN
RETOUT
D1
D2
D3
CT
PCOMP
C108
BRAKE
1.25 V
V
CC2
RETRACT
D0
DACOUT
VCMIN
FBOOST
EXTCOM
6
4
10
11
9
5
17
16
12
8
7
13
22
23
19
18
28
27
24
25
26
1
21
20
15
3
2
14
HA13566AF
4
Serial Port
Construction
SERENAB
CLK
DATA
D0 to D9
MD0 to MD9
DD0 to DD9
Mode Control Register
A0 = 1
A0 = 0
Decoder
A0
Serial
port
Mode Control
VCM Control
Input Data Register
for DAC & VCM
Figure 1 Serial Port
Data construction
Input Data Construction
for selecting
register
Register Data
MSB
LSB
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
A0
Figure 2 Input Data (1)
The serial port is required the 11 bit data (D0 to D9 and A0). Address bit A0 is used to select the register
as follows. When the data length is less than 11 bits, the internal register will not be up dated. And when
the data length is more than 11 bits, this register will take late 10 bits and ignore the faster bit.
A0
Register
0
Input data register of DAC & VCMGAIN
1
Mode control register
HA13566AF
5
Mode Control Register (A0 = 1)
Bit
Symbol
1
0
Note
MD0
SPNENAB
Spindle enable
Spindle disable
1
MD1
BRAKE
Brake enable
Brake disable
1
MD2
Not use
--
--
MD3
HALF
Half wave drive
Full wave drive
MD4
EXTCOM
External commutation
Internal commutation
2
MD5
SOFTSW
Soft switching
Switching
MD6
VCMENAB
VCM enable
VCM disable
MD7
RETRACT
Retracting
Not retracting
MD8
POLESEL
for 12 poles motor
for 8 poles motor
3
MD9
FBOOST
Low frequency
High frequency
4
Notes: 1. The spindle motor is independently winding to the value of the MD2, during the MD1 is true.
2. The bit MD4 select a commutation mode at driving by B-EMF sensing. (See Commutation
timing)
3. In order to prevent the misdetection of back-EMF amplifier, the bit MD8 should be chosen as
shown above table.
4. The bit MD9 determine the operating frequency of Booster Circuit. According to the frequency of
Input CLK at pin 10, the value of MD9 should be chosen as shown below.
CLK (at pin 10)
MD9
7.1 MHz to 10 MHz
0
4.0 MHz to 7.0 MHz
1
Input Data Register (A0 = 0)
Bit / DD0 to DD9: These input data are used to control the output current at VCM driver as shown follows.
VCMGAIN
Input data of DAC
MSB
LSB
DD9
DD8
DD7
DD6
DD5
DD4
DD3
DD2
DD1
DD0
Figure 3 Input Data (2)
HA13566AF
6
The data bit DD9 determine the transfer gain G
VCM
which is specified as the relationship between the input
data at the input data register and the output current at VCM amplifier. (See the under table)
DD9
DATA
I
O
[mA]
1
1FF
+199.2/R
S
1
100
0.000
1
000
200.0/R
S
0
1FF
+24.9/R
S
0
100
0.000
0
000
25.0/R
S
Data Input Timing
SERENAB
CLK
DATA
A0 D9
Vth (= 1/2V
CC2
Typ)
Vth
Vth
t0
t3
t2
t1
Latch point
Up date point
t4
t5
D8 D7 D6 D5 D4 D3 D2 D1 D0
t0
20ns
t1
20ns
t2
50ns
t3
40ns
t4
40ns
t5
40ns
Figure 4 Input Timing on Serial Port
Internal
DAC output
SERENAB
t6
t6
t6 : Conversion time of DAC
1
s
Figure 5 Conversion Timing on DAC
HA13566AF
7
Commutation Timing
Commutation for starting up
COMM
PHASE
I
U
I
V
I
W
Delay
+
0
+
0
+
0
Pulsewidth
10
s
1/f
COMM
Synchronous
(
0.2s to 0.3s)
driving by B-EMF sensing
Note: 1. The frequency of COMM signal f
COMM
can be designed as follows.
f
COMM (max)
= 2.5
P K
T
I
O
J
(Hz)
(for begin of synchronous driving)
(for end of synchronous driving)
(1)
f
COMM (min)
= 0.5
Where,
P K
T
I
O
J
(Hz)
(2)
P : Pole number of spindle motor (Hz)
K
T
: Torque constant (kg cm/A)
I
O
: Start up current (A)
J : Moment of inertia (kg cm S
2
)
HA13566AF
8
External Commutation Mode (Full Wave Drive)
B-EMF
PHASE
COMM
0
0
0
+
0
+
U-Current
Switching
mode
Delay
*2
U
V
W
0
+
+ 50 %
50 %
Note: 2. Provided by MPU.
U-Current
Soft
switching
mode
HA13566AF
9
External Commutation Mode (Half Wave Mode)
B-EMF
(V
CC
)
PHASE
COMM
0
0
0
+
U
V
W
50 %
0
+
U-Current
Switching
mode
0
+
U-Current
Soft
switching
mode
HA13566AF
10
Internal Commutation Mode (Full Wave Mode)
B-EMF
PHASE
0
0
+
U
V
W
+ 50 %
50 %
0
COMM
*3
Note: 3. When the internal commutation mode is selected, the commutation of the motor is automatically
selected at the B-EMF sensing drive. But don't open the COMM terminal.
0
+
U-Current
Switching
mode
0
+
U-Current
Soft
switching
mode
HA13566AF
11
Internal Commutation Mode (Half Wave Mode)
B-EMF
PHASE
0
0
+
U
V
W
50 %
0
COMM
0
+
U-Current
Switching
mode
0
+
U-Current
Soft
switching
mode
HA13566AF
12
Application
C101
C2
R2
C1
MPU
Spindle
motor
C102
R101
C103 R103
C104
R104
C106
C105
C107
R
L
C108
R
S
D1
D2
D3
Serial data
R1
U
V
W
CHAGPMP
POWGOOD
DACOUT
R
NF
R
NF
PCOMP
RETOUT
VCMP
RETPOW
TAB
SPNCOMP
PHASE
CLK
DATA
SERENAB
CT
VCMN
R
S
Booster
COMM
CDELAY
VCMIN
V
CC2
V
CC2
VREF
HA13566AF
13
External Component
Parts No.
Recommended Value
Purpose
Notes
R
1
47 k
Integral constant
1
R
2
--
Integral constant
1
R
101
--
Set retract current
2
R
103
, R
104
2.2
For stability
R
NF
0.2
Spindle current sense
3
R
S
0.47
VCM current sense
C
1
, C
2
--
Integral constant
1
C
101
0.1
F
Power supply bypass
C
102
0.1
F
Phase compensation for spindle driver
C
103
, C
104
0.1
F
For stability
C
105
0.47
F
For booster
C
106
4.7
F
For booster
C
107
--
POR delay
4
C
108
--
Retpower filter
D1, D2, D3
--
For retract
Notes: 1. This integral constants can be designed as follows.
O
=
2
N
O
600
(3)
=
J
O
N
O
R
NF
9.55Kt Gctl Vref2
R
2
R
1
(4)
C
1
=
1
10
O
R
2
(5)
C
2
= 10C
1
(6)
Where,
O
= Time constant of servo loop
N
O
= Rotation number (rpm)
J = Moment of inertia (kg cms
2
)
R
NF
= Current sense resistor (
)
Gctl = Control gain (see electrical characteristics)
Vref2 = Internal reference voltage (See electrical characteristics)
HA13566AF
14
2. The retract current is determined as follows.
Iret =
Vretpow Vsatret
R101 + R
L
+ R
S
(7)
where,
R
L
= VCM coil Resistor.
Vsatret = Retout saturation voltage (See electrical characteristics)
3. The motor start up current I
O
is determined as follows.
I
O
= (A)
Vref1
R
NF
(8)
Where, Vref1 = Current limiter reference voltage
(See electrical characteristics)
4. The power on reset delay time is determined as follows.
t
POR
= 10
5
C
107
(See electrical characteristics)
(9)
HA13566AF
15
Absolute Maximum Ratings (Ta = 25
C)
Item
Symbol
Value
Units
Notes
Power supply voltage
V
CC2
7.0
V
1
Spindle current
Ispn
1.0
A
2
VCM current
Ivcm
400
mA
2
Retract current
Iret
100
mA
2
Input voltage
Vin
0 to V
CC
V
Power dissipation (Ta = 65
C)
P
T
1
1.0
W
3
Power dissipation (Tc = 100
C)
P
T
2
2.0
W
3
Junction temperature
Tj
150
C
4
Storage temperature range
Tstg
55 to +125
C
Notes: 1. Operating voltage range is 4.25 V to 5.75 V.
2. ASO of each output transistor is shown below. Operating locus must be with in the ASO.
3. Thermal resistance is shown below.
j-c
25
C/W
j-a
80
C/W
4. Operating junction temperature range is 0 to +125
C.
1
5
10
20
Collector Emitter Voltage V
CE
(V)
Collector Current I
C
(A)
4
1
0.5
0.1
t = 1 ms
t = 10 ms
t = 100 ms
Figure 6 ASO of Output Transistor (Spindle Driver)
HA13566AF
16
1
5
10
20
4
1
0.5
0.1
t = 1 ms
t = 10 ms
t = 100 ms
Collector Emitter Voltage V
CE
(V)
Collector Current I
C
(A)
Figure 7 ASO of Output Transistor (VCM Driver)
HA13566AF
17
Electrical Characteristics (Ta = 25
C, V
CC
= 5 V)
Item
Symbol
Min
Typ
Max
Units
Test
Conditions
Applicable
Terminal
Note
Supply current
I
CC1
--
15
20
mA
Enabl e m ode
3
Logic
Input low current
I
IL
--
0
10
A
V
IL
=0V
8, 9, 10, 11
input
Input high current
I
IH
--
--
10
A
V
IH
=5V
Input low voltage
V
IL
--
--
1.5
V
Input high voltage
V
IH
3.5
--
--
V
Clock frequency
f
CLK
--
--
10
MHz
Logic
output
Output high
voltage
V
OH
4.4
--
--
V
I
OH
=1mA
7, 13
Output low voltage
V
OL
--
--
0.4
V
I
OL
=1mA
Spindle
Total saturation
Vsatspn
--
1.0
1.4
V
Ispn=0.8A
1, 25, 26
driver
voltage
--
0.2
0.3
V
Ispn=100mA
Output leak current
Icer1
--
--
5
mA
MD3=1,
V
O
=V
CC
+3V
Current limiter
reference voltage
Vref1
139
155
171
mV
R
NF
=1.0
Current control
gain
Gctl
14
12
10
dB
B-EMF
amps
Input sensitivity
Vmin
--
50
--
mVp-p
1, 25, 26
1
Charge
Input high voltage
V
IHCP
3.5
--
--
V
12
pump
Input low voltage
V
ILCP
--
--
1.5
V
Input high current
I
IHCP
--
150
200
A
V
IHCP
=5V
Input dead current
I
IDCP
--
10
A
Input low current
I
ILCP
--
150
200
A
V
ILCP
=0V
Output current
Charge
current
+44
+54
+64
A
R1=24k
17
Discharge
current
64
54
44
A
R1=24k
Output cutoff
current
Ioff
--
--
50
nA
Reference voltage
Vref2
1.32
1.39
1.46
V
R1=24k
16
VCM
VCM input resistor
Rin
42
60
78
k
2
driver
Output quiescent
voltage
Vq
V
CC2
/2
V
CC2
/2
+5%
V
CC2
/2
+10%
V
22, 23
Output leak current
Icer2
--
--
5
mA
Total output
Vsatvcm
--
1.0
1.35
V
Ivcm=400mA
saturation voltage
--
0.8
1.0
V
Ivcm=200mA
HA13566AF
18
Electrical Characteristics (Ta = 25
C, V
CC
= 5 V) (cont)
Item
Symbol
Min
Typ
Max
Units
Test
Conditions
Applicable
Terminal
Note
VCM
Resolution
Ires
--
1/512
--
--
21, 22, 23
1
driver
DAC output
resistor
Rout
--
--
50
14
Output current full
I
FS1
345
385
425
mA
DD9=1, R
S
=
2, 14
2
scale
I
FS2
45
50
55
mA
1
, R
L
=14
Gain ratio
I
FS1
/ I
FS2
7.5
8.0
8.5
--
Offset
Ioff1
--
--
15
LSB
DD9=1, R
S
=
21, 22, 23
Ioff2
--
--
20
LSB
1
, R
L
=14
Ioff3
--
--
80
LSB
Ioff1
8Ioff2
Linearity
I
LIN
--
--
1
LSB
Gain Bandwidth
B
--
40
--
kHz
DD9=1, R
S
=
1
, R
L
=14
1
--
95
--
kHz
DD9=0, R
S
=
1
, R
L
=14
Retract
driver
Retpow voltage
Vretpow
1.4
--
--
V
R
S
=1.0
,
R
L
=14
Iret=100mA
18
Retout saturation
voltage
Vsatret
--
1.0
1.2
V
Iret=100mA
19
LVI
Operating voltage
Vsd
3.55
3.85
4.15
V
3
Recovery voltage
Vrec
3.9
4.2
4.5
V
1
POR
Power on reset
delay time
POR
5
10
20
ms
C
107
=0.1
F
13
OTSD
Operating
temperature
Tsd
125
150
--
C
1
Hysteresis
Thys
--
25
--
C
Note:
1. Design guide only
2. Specified by shorting between VCMIN and DACOUT.
HA13566AF
19
Package Dimensions
9.0
0.2
7.0
0.32
0.08
0.13
20
15
1
6
21
28
14
7
0.65
9.0
0.2
0.10
1.0
0
8
0.50
0.10
0.17
0.05
1.70 Max
M
2.25
0.10
0.95
0.10
0.575
0.575
Hitachi Code
JEDEC
EIAJ
Weight (reference value)
FP-28T
--
--
0.2 g
0.30
0.06
+ 0.09
0.05
0.13
1.40
0.15
0.04
Unit: mm
Dimension including the plating thickness
Base material dimension
Cautions
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contact Hitachi's sales office before using the product in an application that demands especially high
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traffic, safety equipment or medical equipment for life support.
4. Design your application so that the product is used within the ranges guaranteed by Hitachi particularly
for maximum rating, operating supply voltage range, heat radiation characteristics, installation
conditions and other characteristics. Hitachi bears no responsibility for failure or damage when used
beyond the guaranteed ranges. Even within the guaranteed ranges, consider normally foreseeable
failure rates or failure modes in semiconductor devices and employ systemic measures such as fail-
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