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Publication date: May 2007
AN41240A
Package Code No.
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DATA SHEET
HSOP056-P-0300B
SDC00072AEB
1
AN41240A
Contents
„ Overview ……………………………………………………………………………………………………………. 3
„ Features …………………………………………………………………………………………………………….. 3
„ Applications ………………………………………………………………………………………………………… 3
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„ Package ……………………………………………………………………………………………………………. 3
„ Type …………………………………...……………………………………………………………………………. 3
„ Block Diagram ………………...……………………………………………………………………………………. 4
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„ Pin Descriptions ……………………………………………………………………………………………………. 5
„ Absolute Maximum Ratings ………………………………………………………………………………………. 7
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„ Operating Supply Voltage Range ……………..…………………………………………………………………. 7
SDC00072AEB
2
AN41240A
AN41240A
Motor drive IC for Optical Disk
„ Overview
„ Features
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The AN41240A is a single chip IC that uses single-hall-sensor drive on the input side of the spindle motor drive block and
low-noise direct PWM drive of sine wave on the output side, incorporating a PWM 6-channel driver necessary for optical pickup
and mechanism driving.
It is effective for reducing noise, vibration and power consumption of the optical disk drive.
ue
y 1-hall-sensor, 3 phase full-wave and less-noise Direct-PWM driving for Spindle motor driver.
y The actuator (focus, tracking, tilt) drive blocks use linear input and direct PWM drive technique.
Moreover, the driver are low in power consumption.
y Sled (stepping) motor and loading motor drive blocks use linear input and direct PWM drive technique.
Less external components are used as the current detection resistors are built-in.
y Independent power supply pins are provided for each of the spindle motor, actuator, sled (stepping) motor,
and loading motor drive channels.
y Functions
: Motor drive for optical disk /Actuator drive
Spindle motor driver, Actuator (Focus, Tracking, Tilt) driver,
Sled (Stepping) motor driver, Loading motor driver
y Drive voltage
: 8 V (VMSP, VMST), 5 V (VDD, VMAC), 8 V/ 5 V (VMLO)
y Additional features : Built-in Stand-by function (Spindle and Ch.1 to Ch.6 ALL mute)
1 time /3 times FG output frequency switch
Spindle Torque Limit switch
Short brake / Reverse brake / Auto brake switch
Normal Torque / Low-Torque Mode switch
Bias pin for Hall elements
Thermal shutdown
Loading power supply selectable, 8 V / 5 V.
Sled (Stepping) gain switch
on
tin
„ Applications
ce
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isc
y CD-ROM, DVD-ROM, CD-R/RW,
DVD recorder, various combination types.
an
„ Package
y Bi-CDMOS IC.
int
Ma
„ Type
en
y 56 pin plastic small outline package with heat sink (SOP Type)
SDC00072AEB
3
AN41240A
„ Block Diagram
VDD
RIN1 = 15 kΩ
IN1
RFB1
CFB1
40
CMOS
H/B
Predrive
Logic
FB1
24
22 RO1
23
FB
25
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RIN2 = 15 kΩ
IN2
RFB2
CFB2
39
FB2
12.3 kΩ
38
CMOS
H/B
Predrive
Logic
FB3
FB
VPUMP
IN4
STEPPER
Torque Limit /Gain switch
HIGH :
STGSW
0.80 A / 1.07 A/V
OPEN :
0.45 A / 0.40 A/V
IN5
LOW :
0.60 A / 0.70 A/V
VREF
IN6
absolute
value
1MΩ
43
44
1MΩ
45
STLO
7
17
HH
isc
int
(240 Ω)
Hall
bias
Ma
HL
(0.1 μF)
DMOS
H/B
DMOS
H/B
DMOS
H/B
VPUMP
Hall
amp
matrix
18
19
(240 Ω)
3.3 V 20 kΩ
FG signal output
FG 14
FG frequency switch
HIGH : 3FG
SFG 10
LOW : 1FG
BRK mode switch
BMS 9
HIGH : S-BRK
OPEN : SRS-BRK
LOW : R-BRK
20
Spindle speed
INSP
Control signal input
VVREF
21
INSP > VREF : acceleration
INSP < VREF : BRK
Spindle Gain switch
HIGH : 1.72 A/V
LOW : 0.73 A/V
Thermal
shut down
Triangular
wave
oscillator
Charge
pump
VPUMP
en
VH
16
Predrive
Standby (Mode)
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VDD
29 FO3
30 RO3
50 V
MST
54 FO4
8V
47 μF
53 RO4
56
PGST
52 FO5
51 RO5
36
VPRE
VMLO
32 FO6
5 / 8V
47 μF
33 RO6
Standby (ALL)
an
47 μF
Predrive
absolute
value
37
STBY
Predrive
absolute
value
1MΩ
6
5V
RO2
ue
Active mode switch
HIGH :
SP/ACT/STP Active
OPEN : Ch.3-6 Active
LOW : LO Active
41
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1.65 V 22 μF
27
FO2
FB
RFB3
CFB3
26
PGAC
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IN3
CMOS
H/B
Predrive
Logic
47 μF
FO1
Distributor
49 BC2
0.1 μF
47 μF 8 V
13 VMSP2
3 A1
DMOS
3-phase
bridge
FF
2 A2
1 A3
4 RCS1
OSC
Brake mode
switching SW
0.1 μF
48 BC1
12 VMSP1
Upper
Predrive
Lower
Predrive
Generate
FG
47 VPUMP
56 RCS2
5 CS
absolute
value
1M
RCS = 0.25 Ω
8
GSW
SPLSW
Spindle
Torque Limit switch
46 GND
HIGH : 1.40 A
OPEN : 1.12 A
LOW : 0.90 A
SDC00072AEB
4
AN41240A
„ Pin Descriptions
Pin No.
Pin name
Type
Description
VMSP2
Power supply Spindle motor drive power supply 2
2
FO4
Output
Ch.4 non-inverting output
3
RO4
Output
Ch.4 inverting output
4
PGST
Ground
Ch.4, Ch.5 drive GND
5
FO5
Output
Ch.5 non-inverting output
6
RO5
Output
Ch.5 inverting output
7
VMST
8
BC1
Output
Charge pump setup capacitor 1
9
BC2
Output
Charge pump setup capacitor 2
10
VPUMP
Output
Charge pump output
11
GND
Ground
Control circuit GND
12
IN4
Input
Ch.4 control signal input
13
IN5
Input
Ch.5 control signal input
14
VREF
Input
Reference voltage input
15
N.C.
—
16
INSP
Input
Spindle motor drive control signal input
17
IN6
Input
Ch.6 control signal input
18
IN2
Input
Ch.2 control signal input
19
FB2
Output
20
VPRE
Input
21
FB1
Output
22
IN1
Input
23
IN3
24
FB3
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1
25
RO6
26
VMLO
27
FO6
Output
Ch.6 non-inverting output
28
PGAC2
Ground
Ch.1, Ch.2, Ch.3, Ch.6 drive GND2
29
RO3
Output
Ch.3 inverting output
30
FO3
Output
Ch.3 non-inverting output
31
RO2
Output
Ch.2 inverting output
32
FO2
Output
Ch.2 non-inverting output
33
PGAC1
Ground
Ch.1, Ch.2, Ch.3, Ch.6 drive GND1
34
VMAC
35
RO1
N.C.
Ch.2 feedback output
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Ch.6 Pre-Drive power supply
Ch.1 feedback output
Ch.1 control signal input
isc
Input
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Output
Output
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Power supply Ch.4, Ch.5 motor drive power supply
Ch.3 control signal input
Ch.3 feedback output
Ch.6 inverting output
Power supply Ch.6 motor drive power supply
Power supply Ch.1, Ch.2, Ch.3 coil drive power supply
Output
Ch.1 inverting output
SDC00072AEB
5
AN41240A
„ Pin Descriptions (continued)
Pin No.
Pin name
Type
Description
36
FO1
Output
Ch.1 non-inverting output
37
VH
Output
Spindle motor drive hall bias output
38
HL
Input
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Spindle motor drive hall element negative input
39
HH
Input
Spindle motor drive hall element positive input
40
VDD
Power supply
41
FG
Output
42
N.C.
43
SPLSW
Input
Spindle motor Torque Limit switching input
44
STGSW
Input
Ch.4, Ch.5 motor drive input/output Gain switching input
45
BMS
Input
Spindle motor drive brake mode switching input
46
GSW
Input
Spindle motor drive input/output Gain switching input
47
SFG
Input
Spindle motor drive FG mode switching input
48
STLO
Input
LO shutdown input
49
STBY
Input
Total shutdown input
50
VMSP1
Power supply
51
A1
Output
52
CS
Input
Spindle motor drive output current detection
53
RCS1
Output
Spindle motor drive common source output 1
54
A2
Output
Spindle motor drive output 2
55
A3
Output
Spindle motor drive output 3
56
RCS2
Output
Control circuit power supply
Spindle motor drive FG signal output
N.C.
Spindle motor drive power supply 1
on
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Spindle motor drive output 1
Spindle motor drive common source output 2
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—
SDC00072AEB
6
AN41240A
„ Absolute Maximum Ratings
A
No.
Symbol
Rating
VDD, VMAC
6.0
VMSP, VMST, VMLO
10.0
IDD
100
IMSP
1 500
IMAC
2 500
IMST
2 000
Supply voltage
Unit
Pin
Notes
V
—
*1
—
⎯
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1
Parameter
Supply current
IMLO
Power dissipation
PD
4
Operating ambient
temperature
Topr
5
Storage temperature
Tstg
6
Drive power supply / output
instantaneous current spindle
I(p)
7
Drive output current
Ch.1, Ch.2, Ch.3
I(q)
8
Drive output current
Ch.4, Ch.5, Ch.6
I(r)
9
Drive output voltage
V(m)
10
Drive output voltage
V(l)
11
Control signal input voltage
V(n)
12
Hall bias current
on
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3
isc
IHB(x)
mA
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2
1 000
448
mW
—
*2
–40 to +85
°C
—
*3
–55 to +150
°C
—
*3
±3 500
mA
p = 1, 50, 51, 53, 54, 55, 56
*4,
*5
±1 000
mA
q = 29, 30, 31, 32, 35, 36
*5
±1 000
mA
r = 2, 3, 5, 6, 25, 27
*5
10.7
V
m = 2, 3, 5, 6, 25, 27, 51, 54, 55
*5
6.7
V
l = 29, 30, 31, 32, 35, 36
*5
GND to VDD
V
n = 12, 13, 14, 16, 17, 18, 22, 23
38, 39, 43, 44, 45, 46
47, 48, 49
*5
30
mA
x = 37
*5
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Notes) *1: The values under the condition not exceeding the above absolute maximum ratings and the power dissipation.
The charge pump output circuit voltage will exceed the supply voltage. The limit of the charge pump output circuit voltage is shown in
“Operating Supply Voltage / Current Range" on Page8.
*2: The power dissipation shown is the value at Ta = 85°C for the independent (unmounted) IC package.
When using this IC, refer to the PD-Ta diagram of the package standard and use under the condition not exceeding the allowable value.
*3: Except for the power dissipation, operating ambient temperature, and storage temperature, all ratings are for Ta = 25°C.
*4: Each output current of ±3 500 mA, ±2 000 mA is only permissible for a period within 1 ms and 50 ms respectively.
*5: Do not apply current or voltage from outside to any pin not listed other than the power supply and ground pins.
For the circuit currents, '+' denotes current flowing into the IC, and '−' denotes current flowing out of the IC.
„ Operating supply voltage range
Parameter
Supply voltage range
Symbol
Min
Typ
Max
VDD
4.5
5.0
5.5
VMAC
4.5
5.0
5.5
VMSP, VMST
7.2
8.0
8.8
VMLO (5 V)
VMLO (8 V)
4.5
7.2
5.0
8.0
5.5
8.8
Unit
Notes
⎯
V
*
Note) *: The values under the condition not exceeding the above absolute maximum ratings and the power dissipation.
SDC00072AEB
7
Request for your special attention and precautions in using the technical information and
semiconductors described in this book
(1) If any of the products or technical information described in this book is to be exported or provided to non-residents, the laws and
regulations of the exporting country, especially, those with regard to security export control, must be observed.
(2) The technical information described in this book is intended only to show the main characteristics and application circuit examples
of the products, and no license is granted under any intellectual property right or other right owned by our company or any other
company. Therefore, no responsibility is assumed by our company as to the infringement upon any such right owned by any other
company which may arise as a result of the use of technical information described in this book.
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(3) The products described in this book are intended to be used for standard applications or general electronic equipment (such as office
equipment, communications equipment, measuring instruments and household appliances).
Consult our sales staff in advance for information on the following applications:
– Special applications (such as for airplanes, aerospace, automobiles, traffic control equipment, combustion equipment, life support
systems and safety devices) in which exceptional quality and reliability are required, or if the failure or malfunction of the products may directly jeopardize life or harm the human body.
– Any applications other than the standard applications intended.
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(4) The products and product specifications described in this book are subject to change without notice for modification and/or improvement. At the final stage of your design, purchasing, or use of the products, therefore, ask for the most up-to-date Product
Standards in advance to make sure that the latest specifications satisfy your requirements.
(5) When designing your equipment, comply with the range of absolute maximum rating and the guaranteed operating conditions
(operating power supply voltage and operating environment etc.). Especially, please be careful not to exceed the range of absolute
maximum rating on the transient state, such as power-on, power-off and mode-switching. Otherwise, we will not be liable for any
defect which may arise later in your equipment.
Even when the products are used within the guaranteed values, take into the consideration of incidence of break down and failure
mode, possible to occur to semiconductor products. Measures on the systems such as redundant design, arresting the spread of fire
or preventing glitch are recommended in order to prevent physical injury, fire, social damages, for example, by using the products.
(6) Comply with the instructions for use in order to prevent breakdown and characteristics change due to external factors (ESD, EOS,
thermal stress and mechanical stress) at the time of handling, mounting or at customer's process. When using products for which
damp-proof packing is required, satisfy the conditions, such as shelf life and the elapsed time since first opening the packages.
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(7) This book may be not reprinted or reproduced whether wholly or partially, without the prior written permission of Matsushita
Electric Industrial Co., Ltd.