KA3016D [FAIRCHILD]
SPINDLE MOTOR DRIVER; 主轴电机驱动器
| 型号： | KA3016D |
| 厂家： | 
FAIRCHILD SEMICONDUCTOR |
| 描述： | SPINDLE MOTOR DRIVER |
| 文件： | 总18页 (文件大小：521K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
CD-ROM PRODUCTS
KA3016D
SPINDLE MOTOR DRIVER
28-SSOPH-375
The KA3016D is a monolithic integrated circuit, suitable for
a 3-phase spindle motor drive of a CD system.
FEATURES
•
•
•
•
•
•
•
•
•
•
3-phase, full-wave, linear BLDC motor driver
Power save at stop mode
Built-in current limiter
Built-in TSD (Thermal shutdown) circuit
Built-in 3X or 1X hall FG output
Built-in hall bias circuit
ORDERING INFORMATION
Built-in rotational direction detector
Built-in reverse rotation preventer
Built-in short braker
Device
Package
Operating Temperature
KA3016D 28-SSOPH-375
- 25°C ~ +75°C
Corresponds to 3.3V or 5V DSP
BLOCK DIAGRAM
28
27
26
25
24
23
22
21
20
19
18
17
16
15
-
+
Absolute
Values
Current sense
Amp
Output
Current limit
TSD
Hall amp
12
1
2
3
4
5
6
7
8
9
10
11
13
14
Rev. B
MIC-99D001
January 1999
1
Ó 1999 Fairchild Semiconductor Corporation
KA3016D
CD-ROM PRODUCTS
PIN CONFIGURATION
FIN(GND)
KA3016D
FIN(GND)
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
PIN DESCRIPTIONS
Pin No. Symbol I/O
Description
Pin No. Symbol
I/O
Description
1
2
NC
A3
-
O
-
No connection
Output (A3)
15
16
17
18
19
20
21
22
23
24
VH
NC
I
-
Hall bias
No connection
3
NC
A2
No connection
Output (A2)
PC1
SB
-
Phase compensation capacitor
Short brake
4
O
-
I
5
NC
NC
A1
No connection
No connection
Output (A1)
FGS
DIR
ECR
EC
I
Frequency generation selection
Rotational direction output
Output current control reference
Output current control voltage
Power save (Start/Stop switch)
6
-
O
I
7
O
-
8
GND
H1+
H1-
Ground
I
9
I
Hall signal (H1+)
Hall signal (H1- )
S/S
FG
I
10
I
O
Frequency generation waveform
(3X or 1X hall frequency)
11
12
13
14
H2+
H2-
H3+
H3-
I
I
I
I
Hall signal (H2+)
Hall signal (H2- )
Hall signal (H3+)
Hall signal (H3- )
25
26
27
28
VCC
NC
-
-
-
-
Supply voltage (Signal)
No connection
VM
Supply voltage (Motor)
Output current detection
CS1
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CD-ROM PRODUCTS
KA3016D
EQUIVALENT CIRCUITS
Hall input
Driver output
27
28
9
10
12
14
1kW
1kW
50W
50W
11
13
2
4
7
Torque control input
Hall bias input
50W
5W
21
22
+
15
50W
-
50kW
Current detector
Start / Stop
50W
50kW
50W
50kW
23
18
30kW
30kW
Dir or FG output
FGS input
VCC
20kW
50W
24
50W
50kW
30kW
20
19
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January 1999
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KA3016D
CD-ROM PRODUCTS
ABSOLUTE MAXIMUM RATING (Ta=25°C)
Characteristics
Maximum supply voltage (Signal)
Maximum supply voltage (Motor)
Power dissipation
Symbol
Value
7
Unit
V
V
CCMAX
V
18
V
MMAX
note
P
1.7
W
A
D
Maximum output current
I
1.3
OMAX
Operating temperature range
Storage temperature range
T
- 25 ~ +75
- 55 ~ +150
°C
°C
OPR
TSTG
NOTE:
1. When mounted on 76.2mm ´ 114mm ´ 1.57mm PCB (Phenolic resin material)
2. Power dissipation is reduced 13.6 mV / °C for using above Ta=25°C
3. Do not exceed Pd and SOA (Safe operating area).
Pd (mW)
3,000
2,000
1,000
SOA
0
0
25
50
75
100
125
150
175
Ambient temperature, Ta [°C]
RECOMMENDED OPERATING CONDITIONS
Characteristics
Symbol
Min.
4.5
Typ.
5
Max.
5.5
Unit
V
Supply voltage
Motor supply voltage
V
CC
V
3.0
12
15
V
M
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CD-ROM PRODUCTS
KA3016D
ELECTRICAL CHARATERISTICS
(Unless otherwise specified, Ta=25°C, V =5V, V =12V)
CC
M
Characteristics
Quiescent circuit current
START / STOP
Symbol
Test conditions
Min.
Typ.
Max.
Unit
I
-
2
5
8
mA
CC
On voltage range
Off voltage range
HALL BIAS
V
Output drive on
Output driver off
2.5
0.0
-
-
V
V
V
SSON
CC
V
1.0
SSOFF
Hall bias voltage
V
I
=20mA
HB
0.4
1.0
1.8
V
HB
HALL AMP
Hall bias current
I
–
–
–
-
0.5
2
4.0
-
mA
V
HA
Common mode input range
Minimum input level
TORQUE CONTROL
V
1.5
100
-
-
HAR
V
mVpp
INH
E
input voltage range
E
–
–
0.2
0.2
- 80
20
-
4.0
4.0
- 20
80
V
V
CR
CR
E input voltage range
E
-
C
C
Offset voltage (–)
Offset voltage (+)
E
E
E =2.5V
- 50
50
mV
mV
mA
COFF–
COFF+
C
E =2.5V
C
E input current
E
E =2.5V
- 5
0.5
0.5
0.51
5
C
CIN
C
E
input current
E
E
E
=2.5V
- 5
5
mA
CR
CRIN
CR
CR
In/output gain
G
=2.5V, R =0.5W
0.41
0.61
A / V
EC
CS
FG
FG output voltage (H)
FG output voltage (L)
Input voltage range
OUTPUT BLOCK
V
I
I
= –10mA
=10mA
3.0
-
V
CC
V
V
FGH
FG
FG
V
-
-
-
0.5
FGI
–
50
-
%
Saturation voltage (upper TR)
Saturation voltage (lower TR)
Torque limit current
DIRECTION DETECTOR
Dir output voltage (H)
Dir output voltage (L)
V
I = –300mA
-
-
0.9
0.2
1.6
0.6
V
V
OH
O
V
I =300mA
O
OL
TL
I
R
=0.5W
560
700
840
mA
CS
V
I
I
=–10mA
=10mA
3.0
-
-
V
CC
V
V
DIRH
FG
FG
V
-
0.5
DIRL
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KA3016D
CD-ROM PRODUCTS
ELECTRICAL CHARATERISTICS (Continued)
(Unless otherwise specified, Ta=25°C, V =5V, V =12V)
CC
M
Characteristics
FG SELECTION
Symbol
Test conditions
Min.
Typ.
Max.
Unit
3X frequency selection
1X frequency selection
SHORT BRAKE
V
V
FGS > 2.5V
FGS < 1.0
2.5
-
-
V
V
V
FG3X
FG1X
CC
-
1.0
On voltage range
V
-
-
2.5
0
-
-
V
V
V
SBON
CC
Off voltage range
V
1.0
SBOFF
CALCUALTION OF GAIN & TORQUE LIMIT CURRENT
VM
VM
RS
-
IO
Output
Current sense
VS
+
CS1 (Pin 28)
Current / Voltage
Convertor
Negative
Feedback loop
-
Vin
+
IO
R1
U
V
-
Power
Transistors
+
EC
+
+
Driver
Gm
W
-
ECR
Absolute
Values
Commutation
Distributor
+
Vmax
-
H1
H2
H3
VM
Max. output current limiting
0.255 which is made from GM times R1 is fixed value within IC.
0.255
Gain = -------------
RS
Vmax (see above block diagram) is setted to 350mV.
Vmax
RS RS
350[mV ]
Itl[mA ] = -------------- = ----------------------
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January 1999
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CD-ROM PRODUCTS
KA3016D
APPLICATION INFORMATION
1. TORQUE CONTROL & OUTPUT CURRENT CONTROL
VM
+
RCS
VCS
VM
-
Current Sense AMP
IO
Torque AMP
-
Gain
Controller
Driver
ECR
+
+
M
-
ECR-EC
TSD
EC
•
•
By amplifying the voltage difference between E and ecr from servo IC, the torque sense amp produces the
C
input (V
) for the current sense amp.
AMP
The output current (I ) is converted into the voltage (V ) through the sense resistor (R ) and compared with
O
CS
CS
the V
. By the negative feedback loop, the sensed output voltage, V is equal to the input V
.
AMP
CS
AMP
Therefore, the output current (I ) is linearly controlled by the input V
.
O
AMP
•
•
As a result, the signals, E and E can control the velocity of the Motor by controlling the output current (I )
C CR O
of the Driver.
The range of the torque voltage is as shown below.
VRNF
[V]
Reverse
Forward
Rotation
E
> E
Forward rotation
CR
C
Ecoff-
Ecoff+
E
< E
Stop after detecting
reverse rotation
CR
C
0.51[A/V]
3 mV
- 50mV
50mV
0
ECR -EC
The input range of E
E is 0.2V ~ 4V.
C
CR,
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January 1999
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KA3016D
CD-ROM PRODUCTS
2. SHORT BRAKE
MOTOR
OFF
VCC
2
18
ON
4
50kW
7
OFF
ON
30kW
Pin # 18
High
Short brake
On
Off
Low
When the pick-up part moves from the inner to the outer spindle of the CD, the brake function of the reverse
voltage is commonly employed to decrease the rotating velocity of the spindle motor.
However, if the spindle motor rotates rapidly, the brake function of the reverse voltage may produce much heat at
the Drive IC.
To remove this shortcoming and to enhance the braking efficiency, the short brake function is added to KA3016D.
When the short brake function is active, all upper power TRs turn off and all lower power TRs turn on, so as to
make the rotating velocity of the Motor slow down. But FG and DIR functions continue to operate normally.
3. POWER SAVE
MOTOR
OFF
VCC
2
23
4
50kW
Start
Stop
7
ON
30kW
Pin # 23
High
Start/Stop
Operate
Stop
Low
When power save function active, all power TRs turn off but FG and DIR functions continue to operate normally.
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CD-ROM PRODUCTS
KA3016D
4. TSD (THERMAL SHUTDOWN)
Gain
Controller
BIAS
Q2
When the chip temperature rises up to about 175°C, the Q2 turns on so that the output driver will be shutdown.
When the chip temperature falls off to about 150°C, then the Q2 turns off so that the driver is to operate normally.
Thus, TSD has the temperature hysteresis of about 25°C.
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January 1999
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KA3016D
CD-ROM PRODUCTS
5. ROTATIONAL DIRETION DETECTION
VCC
DIR
20
+
H2+
Rotation
Forward
Reverse
DIR
20
-
H2-
Low
D
Q
High
CK
+
H3+
D-F/F
-
H3-
•
•
The forward and the reverse rotations of the CD are simply detected by using the D-F/F and the truth table is
shown in the above table.
The rotational direction of the CD can be explained by the output waveforms of the hall sensors. Let the three
outputs of hall sensors be H1, H2 and H3 respectively.
When the spindle rotates in reverse direction, the hall sensor output waveforms are shown in Fig.(a). Thus the
phases orderd in H1® H2® H3 with a 120°C phase difference.
H1
H2
H3
( a) Reverse rotation
On the other hand, if the spindle rotates in forwand rotation, the phase relationship is H3® H2® H1 as shown in
fig.(b).
H1
H2
H3
( b) Forward rotaion
Therefore, the output of the rotational direction detector is low, when the spindle rotates forward, while high as in
the case of the reverse rotation.
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January 1999
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CD-ROM PRODUCTS
KA3016D
6. REVERSE ROTATION PREVENTION
Current
Sense
Amp
EC
+
-
ECR
H2+
+
Low Active
A
H2-
-
Q
D
CK
H3+
+
Gain
Controller
Driver
M
-
H3-
D-F/F
•
•
When the output of the OR Gate, A is low, it steers all the output current of the current sense amp makes the
current delivered to the gain controller zero. Thus the output current of the driver becomes zero and the motor
is stopped.
As in the state of the forward rotation, the D-F/F output, Q is high and the motor rotates normally. At this state if
the control input is changed such that E >E , then the motor rotates slowly more and more by the reverse
C
CR
commutation in the driver. At the moment that the motor rotates in reverse direction, the D-F/F output becomes
low and the OR gate output, thus, becomes low. This prevents the motor from rotating in reverse direction.
The operation principle is shown in the table and the flow chart..
Rotation
H2
H3
D-F/F
(Q)
Reverse rotation preventer
E >E
E >E
C
CR
C
CR
Forward
Reverse
H
L
H® L
H® L
H
L
Forward
-
-
Brake and stop
Forward rotation at E < E
C
CR
Rotating speed is decreased due to reverse torque at E >E . (Motor still rotates forward)
C
CR
At the moment that the motor rotates in reverse, the reverse rotation preventer makes the output power transistor open.
Rotating reverse at short time due to motor inertia
Stop within 1/6 turn reverse rotating
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KA3016D
CD-ROM PRODUCTS
7. FG OUTPUT
H1-
H1+
FG1X
FG3X
FG
Mux
H2-
H2+
H3-
FGS
H3+
FGS
FG
GND or Open
FG1X (1X hall frequency)
FG3X (3X hall frequency)
V
CC
8. HALL SENSOR CONNECTION
VCC
VCC
HALL 1
HALL 2
HALL 3
HALL 1
HALL 2
HALL 3
15
15
VH
VH
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CD-ROM PRODUCTS
KA3016D
9. Connect a by-pass capacitor, 0.1mF between the supply voltage source.
25
Vcc
0.1mF
10. The heat radiation fin is connected to the internal GND of the package.
Connect that fin to the external GND.
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KA3016D
CD-ROM PRODUCTS
11. INPUT-OUTPUT TIMING CHART
H1 +
H2 +
H3 +
A1 output current
(H1 - )+(H2 +)
A1 output voltage
A2 output current
(H2 - )+(H3 +)
A2 output voltage
A3 output current
(H3 - )+(H1 +)
A3 output voltage
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CD-ROM PRODUCTS
TEST CIRCUITS
KA3016D
10mA
20mA
V
V VM3
14
VM5
13
5V
12V
VR1
IM3 A
A
IM2
VR3
IM2
VR2
IM1
VR5
10uA
15
A
A
RCS
VM7
V
0.5W
V
VM4
VM6
VR4
0.1mF
28
27
26
25
24
23
22
21
20
19
18
17
16
15
VH
CS1
VM
NC
VCC
FG
SS
EC
ECR
DIR
FGS
SB
PC1
NC
KA3016D
NC
1
A3
2
NC
3
A2
4
NC
5
NC
6
A1
7
GND
8
H1+
9
H1-
H2+
11
H2-
H3+ H3-
10
12
13
14
IM9
IM4
IM5
IM6
IM7
IM8
SW1
SW2
SW3
A
A
A
A
A
A
V
V
V
VM8
c
a
c
a
c
a
VR8 VR9 VR10 VR11 VR12 VR13
b
b
b
RL=5W
RL=5W
RL=5W
SW13
a
b
V
VM1
12V
V
VM2
300mA
300mA
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January 1999
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KA3016D
CD-ROM PRODUCTS
TYPICAL APPLICATION
0.5W
NC
CS1 28
1
2
3
4
5
6
7
27
VM
A3
VM (12V)
NC
26
NC
VCC 25
A2
VCC (5V)
FG
SS
EC
24
23
22
NC
NC
ST
SP
A1
1.675V
OR
2.1
KA3016D
ECR
8
21
20
19
18
17
16
15
GND
9
H1+
DIR
Servo
Signal
HALL 1
HALL 2
10
11
12
13
14
H1-
FGS
H2+
H2-
H3+
H3-
SB
PC1
NC
R2
0.1mF
HALL 3
VH
R1
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January 1999
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CD-ROM PRODUCTS
KA3016D
PACKAGE DIMENSION
MIC-99D001
January 1999
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TRADEMARKS
The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is
not intended to be an exhaustive list of all such trademarks.
ACEx™
CoolFET™
ISOPLANAR™
MICROWIRE™
POP™
PowerTrench™
QS™
CROSSVOLT™
E2CMOSTM
FACT™
FACT Quiet Series™
Quiet Series™
SuperSOT™-3
SuperSOT™-6
SuperSOT™-8
TinyLogic™
FAST®
FASTr™
GTO™
HiSeC™
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER
NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD
DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT
OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT
RIGHTS, NOR THE RIGHTS OF OTHERS.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION.
As used herein:
1. Life support devices or systems are devices or
systems which, (a) are intended for surgical implant into
the body, or (b) support or sustain life, or (c) whose
failure to perform when properly used in accordance
with instructions for use provided in the labeling, can be
reasonably expected to result in significant injury to the
user.
2. A critical component is any component of a life
support device or system whose failure to perform can
be reasonably expected to cause the failure of the life
support device or system, or to affect its safety or
effectiveness.
PRODUCT STATUS DEFINITIONS
Definition of Terms
Datasheet Identification
Product Status
Definition
Advance Information
Formative or
In Design
This datasheet contains the design specifications for
product development. Specifications may change in
any manner without notice.
Preliminary
First Production
This datasheet contains preliminary data, and
supplementary data will be published at a later date.
Fairchild Semiconductor reserves the right to make
changes at any time without notice in order to improve
design.
No Identification Needed
Obsolete
Full Production
This datasheet contains final specifications. Fairchild
Semiconductor reserves the right to make changes at
any time without notice in order to improve design.
Not In Production
This datasheet contains specifications on a product
that has been discontinued by Fairchild semiconductor.
The datasheet is printed for reference information only.
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