Discontinued

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 perform...
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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 such as CD-ROM, PD, DVD, CD-R, CD-RW, etc.

32

■ Features

■ Applications

11

di

ue

21

Hall amp. matrix

19

H3L VH

Output circuit

Distributor circuit

Amp.

17 Hall bias

3

31

2

PWMOUT

30 EC ECR

VM2

Amp.

1

18

8

32

A1 A2

A3

ea

22

Pl

23

Ma

H3H

1.5±0.2

BC4

VDD

9

OSC

int

H2L

Thermal protection

Step-up voltage circuit

ce /D isc on tin

H2H

24

an

H1L

Start/stop

en

H1H

7

(0.5)

SSOP032-P-0300

■ Block Diagram

FG

0.3 –0.05

Seating plane

• High speed CD-ROM drive PD, DVD, CD-R, CD-RW drives

Start

+0.10

0.65

(0.625)

+0.10

0.2–0.05

0.1±0.1

16

0.65±0.10

1

0.65±0.10

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• Low power consumption due to a direct PWM system • With start and stop pin • Reverse breaking by EC/ECR voltage • With Hall bias pin • Surface-mount small package

8.1±0.3

6.1±0.3

M Di ain sc te on na tin nc ue e/ d

17

RNF2 RNF1

27 VT

FF PNFOUT

26

×5

10

GND

SRESET FC

25

Oscillator

VCL SSET

1

AN8470NSA

ICs for Compact Disc/CD-ROM Player

■ Pin Descriptions Symbol

1

A2

2

RNF2

3

A1

4

Description

Pin No.

Symbol

Description

Drive output 2

17

H3L

Hall element-3 negative input pin

Current det. pin 2

18

H3H

Hall element-3 positive input pin

Drive output 1

19

H2L

Hall element-2 negative input pin

N.C.

N.C.

20

N.C.

N.C.

5

N.C.

N.C.

21

H2H

Hall element-2 positive input pin

6

VM1

Motor supply voltage pin 1

22

H1L

Hall element-1 negative input pin

7

Start

Start/stop changeover pin

23

H1H

Hall element-1 positive input pin

8

VH

Hall bias pin

24

FG

9

VDD

Supply voltage pin

10

GND

Ground pin

11

BC4

12

M Di ain sc te on na tin nc ue e/ d

Pin No.

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FG signal output pin

25

FC

26

ECR

Booster capacitor connection pin 4

27

EC

BC3

Booster capacitor connection pin 3

28

N.C.

N.C.

13

BC2

Booster capacitor connection pin 2

29

N.C.

N.C.

14

BC1

Booster capacitor connection pin 1

30

RNF1

Current det. pin 1

15

VPUMP

Booster pin

31

A3

16

N.C.

32

VM2

N.C.

■ Absolute Maximum Ratings Parameter

Supply voltage

*2

Oscillator pin

Torque command reference input pin

Torque command input pin

Drive output 3

Motor supply voltage pin 2

Symbol

Rating

Unit

VDD

6.0

V

V(m)

15.0

V

V(n)

0 to VDD

V

IDD

30.0

mA

I(o)

±1 200

mA

IHB

30.0

mA

PD

293

mW

Topr

−20 to +70

°C

Tstg

−55 to +150

°C

VM1

Drive output voltage

ce /D isc on tin

ue

VM2

*5

Control signal input voltage Supply current

int

Hall bias current

en

an

Drive output current

*4

*6

Ma

Power dissipation

*3

Operating ambient temperature Storage temperature

*1

*1

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 Ta = 25°C. *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

Range

Unit

VDD

4.5 to 5.5

V

VM1 VM2

M Di ain sc te on na tin nc ue e/ d

■ Electrical Characteristics at Ta = 25°C Parameter

Symbol

Conditions

Min

Typ

Max

Unit

Overall

IDD1

VDD = 5 V in power save mode



0

0.1

mA

Circuit current 2

IDD2

VDD = 5 V



9

14

mA

Start/stop

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Circuit current 1

Start voltage

VSTART

Voltage with which a circuit operates at VDD = 5 V and L → H

2.7





V

Stop voltage

VSTOP

Voltage with which a circuit becomes off at VDD = 5 V and H → L





0.7

V

VHB

VDD = 5 V, IHB = 20 mA

0.7

1.1

1.6

V

IBH

VDD = 5 V



1

5

µA

Hall bias

Hall bias voltage Hall amplifier

VHBR

VDD = 5 V, except for H2H, H2L

1.5



4.0

V

Minimum input level

VINH

VDD = 5 V

60





mV[p-p]

EC

VDD = 5 V

0.5



3.9

V

ECOF

VDD = 5 V

−100

0

100

mV

ECDZ

VDD = 5 V

0

75

150

mV

ECIN

VDD = 5 V, EC = ECR = 2.5 V

−5

−1



µA

ACS

VDD = 5 V, RCS = 0.33 Ω

0.36

0.48

0.60

A/V

High-level output saturation voltage

VOH

VDD = 5 V, IO = −500 mA



0.25

0.50

V

Low-level output saturation voltage

VOL

VDD = 5 V, IO = 500 mA



0.25

0.50

V

Torque limit current

ITL

VDD = 5 V, RCS = 0.33 Ω

455

570

685

mA

Charging current

ICH

VDD = 5 V

−65

−50

−35

µA

Upper threshold voltage

VCH

VDD = 5 V

1.75

2.50

3.25

V

Lower threshold voltage

VCL

VDD = 5 V

0.35

0.50

0.65

V

Torque command

ce /D isc on tin

In-phase input voltage range Offset voltage Dead zone

en Ma

Output

an

Input current

Input/output gain

ue

In-phase input voltage range

int

Input bias current

OSC

3

AN8470NSA

ICs for Compact Disc/CD-ROM Player

■ Electrical Characteristics at Ta = 25°C (continued) Parameter

Symbol

Conditions

Min

Typ

Max

Unit

FG FGH

VDD = 5 V, IFG = − 0.01 mA

3





V

FG output low-level

FGL

VDD = 5 V, IFG = 0.01 mA





0.5

V

In-phase input voltage range

VFGR

VDD = 5 V

1.5



3.0

V

FG hysteresis width

HFG

VDD = 5 V

5

10

20

mV

9.5



15

V

M Di ain sc te on na tin nc ue e/ d

FG output high-level

Step-up circuit

VDD = 5 V, VM1 = VM2 = 5 V

VPUMP

• Design reference data

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Step-up voltage

Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed.

Parameter

Thermal protection

Symbol

Conditions

Min

Typ

Max

Unit

Thermal protection operating temperature

TSDON

VDD = 5 V



170



°C

Thermal protection hysteresis width

∆TSD

VDD = 5 V



45



°C

■ Terminal Equivalent Circuits Pin No. 1

Symbol

A2

Equivalent circuit

32

ue

A1

4

Ma

int

en

an

3

RNF2

ce /D isc on tin

2

N.C.

5

N.C.

6

VM1

7

Start

31

1

3

2

N.C. N.C.

Refer to pin 1

7 25 kΩ (typ.) 25 kΩ (typ.)

4

6

30

BC3

13

BC2

14

BC1

15

VPUMP

16

N.C.

17

H3L

18

19

20

Pin No.

9

VDD

Supply voltage pin

10

GND

Ground pin

11

BC4

14 13

H3H

N.C.

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H2L

ue

12

ce /D isc on tin

8

an

en

int

Ma

M Di ain sc te on na tin nc ue e/ d ICs for Compact Disc/CD-ROM Player AN8470NSA

■ Terminal Equivalent Circuits (continued) Symbol Equivalent circuit

VH 8

18

23

2 kΩ (typ.)

2 kΩ (typ.)

21

2 kΩ (typ.)

11 12

15

N.C.

17

22

2 kΩ (typ.)

19

N.C.

5

AN8470NSA

ICs for Compact Disc/CD-ROM Player

■ Terminal Equivalent Circuits (continued) Pin No.

Symbol

Equivalent circuit

21

H2H

Refer to pin 19

22

H1L

Refer to pin 17

23

H1H

Refer to pin 17

24

FG

VDD

M Di ain sc te on na tin nc ue e/ d

50 kΩ (typ.)

25

FC

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24

VDD

1 kΩ (typ.)

26

ECR

25

1 kΩ (typ.)

EC

N.C.

29

N.C.

6

Ma

30

int

28

en

an

27

ce /D isc on tin

ue

VDD

RNF1

31

A3

32

VM2

27

26

1 kΩ (typ.)

N.C. N.C.

Refer to pin 1

Refer to pin 1

Refer to pin 1

1 kΩ (typ.)

ICs for Compact Disc/CD-ROM Player

AN8470NSA

■ Usage Notes • Prevent this IC from being line-to-ground fault.

M Di ain sc te on na tin nc ue e/ d

(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

H3

H2

H1

H2

H3

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H1

ECR

0

EC

Emit

Output current

A1

ce /D isc on tin

Emit

Output current

A2

en int A3

Sink A

0

0

Ma

Output current

an

Sink

Emit

0

ue

Sink

0

B

C

D

E

F

Phase of Hall pin H1H H2H H3H A B C D E F

H

ML

ML

MH ML

L ML

MH H

L

MH

MH

ML MH

H MH

ML L 7

AN8470NSA

ICs for Compact Disc/CD-ROM Player

■ Application Circuit Example

Start/stop

0.1 µF

5V

6 VM1

15 VPUMP

14 BC1

13 BC2

11 BC4

9 VDD 7

0.1 µF

Thermal protection

Step-up voltage circuit

M Di ain sc te on na tin nc ue e/ d

Start

12 BC3

0.1 µF

VDD = 5 V

FG 24

OSC

32 VM2

H1L 22

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H1H 23

Amp.

H2H 21

Output circuit

Distributor circuit

Hall amp. matrix

H2L 19

H3H 18

Amp.

H3L 17 VH 8

Hall bias

3 A1 1 A2

31 A3

PWMOUT

2 RNF2

30 RNF1

27

Spindle speed EC control signal 26 ECR

VT

FF

PNFOUT

SRESET

FC 25

Oscillator

VCL

SSET

Pl

Ma

int

en

an

ce /D isc on tin

ue

di

560 pF

8

×5

10 GND

RCS = 0.33 Ω

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.

M Di ain sc te on na tin nc ue e/ d

(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.

d pla inc ne lud se pla m d m es v ne ain ain foll htt isit d te t o p:/ fo /w llo dis disc nan enan wing ww wi co on ce c fo .se ng ntin tin ty e ty ur mi UR ue ued pe pe Pro co L a d t ty du n.p bo yp pe ct life an ut e d as lat cy on es cle ic. t in sta co fo ge .jp rm . /en at i o / n.

(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.

Pl ea

Ma

int

en

an

ce /D

isc

on tin

ue

(7) This book may be not reprinted or reproduced whether wholly or partially, without the prior written permission of Matsushita Electric Industrial Co., Ltd.