AN8470NSA [PANASONIC]
Spindle motor driver IC for optical disk; 主轴电机驱动器IC，用于光盘
| 型号： | AN8470NSA |
| 厂家： | 
PANASONIC |
| 描述： | Spindle motor driver IC for optical disk |
| 文件： | 总8页 (文件大小：72K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ICs for Compact Disc/CD-ROM Player
AN8470NSA
Spindle motor driver IC for optical disk
■ Overview
Unit: mm
11.0±0.3
The AN8470NSA is a high performance IC
suited for driving a spindle motor of an optical disk
32
17
such as CD-ROM, PD, DVD, CD-R, CD-RW, etc.
■ Features
• Low power consumption due to a direct PWM
system
+0.10
–0.05
• With start and stop pin
1
16
0.2
• Reverse breaking by EC/ECR voltage
• With Hall bias pin
• Surface-mount small package
+0.10
0.65
(0.625)
0.3
–0.05
■ Applications
Seating plane
(0.5)
• High speed CD-ROM drive
PD, DVD, CD-R, CD-RW drives
SSOP032-P-0300
■ Block Diagram
7
Thermal
protection
Start/stop
Step-up voltage circuit
OSC
Start
FG
24
23
22
21
19
18
17
32
H1H
H1L
H2H
H2L
H3H
H3L
VH
VM2
Amp.
Amp.
Output
circuit
Distributor
circuit
Hall amp.
matrix
3
1
A1
A2
A3
31
8
Hall
bias
2
RNF2
RNF1
PWMOUT
30
27
26
EC
VT
FF
PNFOUT
VCL
× 5
10
ECR
GND
SRESET
25
Oscillator
FC
SSET
1
AN8470NSA
ICs for Compact Disc/CD-ROM Player
■ Pin Descriptions
Pin No. Symbol
Description
Drive output 2
Pin No. Symbol
Description
Hall element-3 negative input pin
Hall element-3 positive input pin
Hall element-2 negative input pin
N.C.
1
2
A2
RNF2
A1
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
H3L
H3H
H2L
N.C.
H2H
H1L
H1H
FG
Current det. pin 2
3
Drive output 1
4
N.C.
N.C.
VM1
Start
VH
N.C.
5
N.C.
Hall element-2 positive input pin
Hall element-1 negative input pin
Hall element-1 positive input pin
FG signal output pin
6
Motor supply voltage pin 1
Start/stop changeover pin
Hall bias pin
7
8
9
VDD
GND
BC4
BC3
BC2
BC1
Supply voltage pin
FC
Oscillator pin
10
11
12
13
14
15
16
Ground pin
ECR
EC
Torque command reference input pin
Torque command input pin
N.C.
Booster capacitor connection pin 4
Booster capacitor connection pin 3
Booster capacitor connection pin 2
Booster capacitor connection pin 1
N.C.
N.C.
RNF1
A3
N.C.
Current det. pin 1
VPUMP Booster pin
N.C. N.C.
Drive output 3
VM2
Motor supply voltage pin 2
■ Absolute Maximum Ratings
Parameter
Symbol
VDD
VM1
VM2
V(m)
V(n)
IDD
Rating
Unit
2
Supply voltage *
6.0
V
5
Drive output voltage *
15.0
0 to VDD
30.0
V
V
6
Control signal input voltage *
Supply current
mA
mA
mA
mW
°C
4
Drive output current *
I(o)
±1 200
30.0
Hall bias current
IHB
3
Power dissipation *
PD
293
1
Operating ambient temperature *
Topr
Tstg
−20 to +70
−55 to +150
1
Storage temperature *
°C
Note) Do not apply external currents or voltages to any pins not specifically mentioned.
For circuit currents, '+' denotes current flowing into the IC, and '−' denotes current flowing out of the IC.
1: Except for the operating ambient temperature and storage temperature, all ratings are for T = 25°C.
*
*
a
2: The voltage in the step-up voltage circuit exceeds the supply voltage.
For the allowable value of the step-up voltage, refer to "■ Electrical Characteristics".
3: For 70°C and IC alone.
*
*
*
*
4: o = 1, 2, 3, 6, 30, 31, 32
5: m = 1, 3, 31
6: n = 7, 17, 18, 19, 21, 22, 23, 26, 27
2
ICs for Compact Disc/CD-ROM Player
AN8470NSA
■ Recommended Operating Range
Parameter
Supply voltage
Symbol
VDD
Range
Unit
4.5 to 5.5
V
VM1
VM2
■ Electrical Characteristics at Ta = 25°C
Parameter
Symbol
Conditions
Min
Typ Max Unit
Overall
Circuit current 1
Circuit current 2
Start/stop
IDD1
IDD2
VDD = 5 V in power save mode
VDD = 5 V
0
9
0.1
14
mA
mA
Start voltage
VSTART Voltage with which a circuit operates
2.7
0.7
V
V
at VDD = 5 V and L → H
Stop voltage
VSTOP Voltage with which a circuit becomes
0.7
1.6
off at VDD = 5 V and H → L
Hall bias
Hall bias voltage
Hall amplifier
VHB
VDD = 5 V, IHB = 20 mA
1.1
1
V
Input bias current
In-phase input voltage range
Minimum input level
Torque command
In-phase input voltage range
Offset voltage
IBH
VDD = 5 V
5
µA
V
VHBR
VINH
VDD = 5 V, except for H2H, H2L
VDD = 5 V
1.5
60
4.0
mV[p-p]
EC
VDD = 5 V
0.5
−100
0
3.9
100
150
V
ECOF
ECDZ
ECIN
ACS
VDD = 5 V
0
mV
mV
µA
Dead zone
VDD = 5 V
75
−1
Input current
VDD = 5 V, EC = ECR = 2.5 V
VDD = 5 V, RCS = 0.33 Ω
−5
Input/output gain
Output
0.36 0.48 0.60
A/V
High-level output saturation voltage
VOH
VDD = 5 V, IO = −500 mA
VDD = 5 V, IO = 500 mA
VDD = 5 V, RCS = 0.33 Ω
0.25 0.50
0.25 0.50
V
V
Low-level output saturation voltage VOL
Torque limit current
OSC
ITL
455
570
685
mA
Charging current
Upper threshold voltage
Lower threshold voltage
ICH
VCH
VCL
VDD = 5 V
VDD = 5 V
VDD = 5 V
−65
−50
−35
µA
V
1.75 2.50 3.25
0.35 0.50 0.65
V
3
AN8470NSA
ICs for Compact Disc/CD-ROM Player
■ Electrical Characteristics at Ta = 25°C (continued)
Parameter
Symbol
Conditions
Min
Typ Max Unit
FG
FG output high-level
FG output low-level
In-phase input voltage range
FG hysteresis width
Step-up circuit
FGH
FGL
VFGR
HFG
VDD = 5 V, IFG = − 0.01 mA
VDD = 5 V, IFG = 0.01 mA
VDD = 5 V
3
V
0.5
3.0
20
V
V
1.5
5
VDD = 5 V
10
mV
Step-up voltage
VPUMP VDD = 5 V, VM1 = VM2 = 5 V
9.5
15
V
• Design reference data
Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed.
Parameter
Symbol
Conditions
Min
Typ Max Unit
Thermal protection
Thermal protection operating
temperature
TSDON VDD = 5 V
170
45
°C
°C
Thermal protection hysteresis width ∆TSD
■ Terminal Equivalent Circuits
VDD = 5 V
Pin No.
Symbol
Equivalent circuit
1
A2
6
3
2
32
2
3
RNF2
A1
31
1
30
4
5
6
7
N.C.
N.C.
VM1
Start
N.C.
N.C.
Refer to pin 1
7
25 kΩ
(typ.)
25 kΩ
(typ.)
4
ICs for Compact Disc/CD-ROM Player
AN8470NSA
■ Terminal Equivalent Circuits (continued)
Pin No.
Symbol
Equivalent circuit
8
VH
8
9
VDD
Supply voltage pin
Ground pin
10
11
GND
BC4
15
14 13
11 12
12
13
14
15
BC3
BC2
BC1
VPUMP
16
17
N.C.
H3L
N.C.
18
23
17
22
2 kΩ
(typ.)
2 kΩ
(typ.)
18
19
H3H
H2L
21
19
2 kΩ
(typ.)
2 kΩ
(typ.)
20
N.C.
N.C.
5
AN8470NSA
ICs for Compact Disc/CD-ROM Player
■ Terminal Equivalent Circuits (continued)
Pin No.
21
Symbol
Equivalent circuit
Refer to pin 19
Refer to pin 17
Refer to pin 17
H2H
H1L
H1H
FG
22
23
24
VDD
50 kΩ
(typ.)
24
25
FC
VDD
25
1 kΩ
1 kΩ
(typ.)
(typ.)
26
27
ECR
EC
VDD
27
26
1 kΩ
(typ.)
1 kΩ
(typ.)
28
29
30
31
32
N.C.
N.C.
RNF1
A3
N.C.
N.C.
Refer to pin 1
Refer to pin 1
Refer to pin 1
VM2
6
ICs for Compact Disc/CD-ROM Player
AN8470NSA
■ Usage Notes
• Prevent this IC from being line-to-ground fault.
(To be concrete, do not short-circuit any of A1 (pin 3), A2 (pin 1) and A3 (pin 31) with GND pin (pin 10).)
• Be careful of the following three pins because their static breakdown voltages are low. (C = 200 pF, R = 0 Ω)
Pin 11: breakdown at 80 V
Pin 14: breakdown at 90 V
Pin 24: breakdown at 190 V
■ Application Note
• Phase conditions between Hall input and output current
H1
H3
H2
H1
H2
H3
0
ECR
Emit
EC
0
0
A1
Output current
Sink
Emit
A2
A3
0
0
Output current
Sink
Emit
Output current
Sink
A
B
C
D
E
F
Phase of Hall pin
H1H H2H H3H
A
B
C
D
E
F
H
ML ML
MH
L
MH
H
ML ML
L
MH MH
ML
H
ML
L
MH MH
7
AN8470NSA
ICs for Compact Disc/CD-ROM Player
■ Application Circuit Example
0.1 µF
0.1 µF
VDD = 5 V
0.1 µF
5 V
7
Thermal
protection
Start
FG
Start/stop
Step-up voltage circuit
OSC
24
23
22
21
19
18
17
32 VM2
H1H
H1L
H2H
H2L
H3H
H3L
VH
Amp.
Output
circuit
Distributor
circuit
Hall amp.
matrix
3
1
A1
A2
A3
Amp.
31
8
Hall
bias
2
RNF2
RNF1
PWMOUT
30
27
26
Spindle speed EC
control signal
ECR
VT
FF
RCS = 0.33 Ω
PNFOUT
VCL
× 5
10
GND
SRESET
25
FC
Oscillator
SSET
560 pF
8
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PANASONIC
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