All-channel PWM driving power consumption is among the lowest of its kind.

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„ Overview

The AN41204A optical disc motor drive IC incorporates a 1-channel 3-phase full-wave PWM motor driver featuring low vibration and noise as well as a 5-channel PWM output driver for linear input. Integrating a spindle driver and channel driver on a single chip and using small, thin packaging reduces the mounting area. This helps to develop equipment that is more compact, slim and lightweight.

„ Feature

•

All-channel PWM driving power consumption is among the lowest of its kind.

•

Low-vibration and low-noise sinewave PWM is used to drive the spindle section.

•

Dead zone-less PWM driving for focus, tracking and tilt.

•

Stepper motor drivers on two channels.

•

Built-in thermal shutdown function.

•

Compact, slim package.

„ Applications

Slim DVD recording units (RAM/+RW/-RW), optical disc units such as slim combination drives and car navigation systems.

Achieving a 1-chip motor drive.

Optical Disc Motor Drive IC AN41204A

HQFP048-P-0707

New publication, effective from 19 Mar. 2004 M00631AE

Unit : mm

25

13 12

24 36

37

1 48

Area of no resin flash

0.15±0.05 7.00±0.10(0.75) 9.00±0.20

0˚ to 8˚

0.10

(1.00) 1.20 max

0.50±0.10 (1.00) (4.20) (3.37)

SEATING PLANE 0.50

(0.75) 0.20±0.05

9.00±0.20 7.00±0.10 (4.20) (3.37)

–0.05+0.100.10 0.10M

„ Block Diagram

STBY V_REF

VREF reset (5-ch)

Logic Pre-

drive FB

Logic Pre-

drive FB

Logic

ABS Pre-

drive

Triangular wave oscillator Thermal

downshut (All)

FF amp.Hall

matrix

Hallbias

Generate FG

Upper drivepre-

Lower drivepre- FB

OSC

3-phase bridge

Rcs Logic ^Pre-

drive FB

Logic

ABS Pre-

drive Power

MOS FB

Power MOS Power MOS Power

MOS Power

MOS

4 5 17

2 3 27

34 33 32 31 30 29 28 18 16 15 6 14

7 13

8 12

9 11 10

22

26 25

24

20 23

19 21 43 44 45

47 48 46

35 42 37 39 40 38 41

36 EC 1

ECR SFG

BMS FG 20kΩ 100Ω

VH H3L H3H H2L H2H H1L H1H100Ω

47µF

5V VDD

22µF

1.65V

FB5 0.01µF

ΙΝ5 FB4 0.01µF

ΙΝ4 0.01µFFB3

1.5kΩ

15kΩ ΙΝ3 0.01µFFB2

1.5kΩ

15kΩ ΙΝ2 0.01µFFB1

1.5kΩ

15kΩ ΙΝ1

GND CS RCS2 RCS1 VMSP2

A2

A3 A1 VMSP1

47µF 5V

Standby (all-ch)

PGST RO5 FO5 RO4 FO4 VMST PGAC RO3 FO3 RO2 FO2 RO1 FO1 VMAC

47µF 5V

H OPEN L

:1FG,All ch.=active :3FG,All ch.=active :1FG,ch.1 mute

H OPEN L

:R-BRK :S-R-S-BRK :S-BRK

EC<ECR EC>ECR

:Acceleration :BRK

3.3V SFG Mode table

Spidle speed control signal input

friequency selectFG Signal outputFG Connect this part toV_REF

0.22Ω

Distributor

Absolute value Brake mode

selector BMS Mode table

Ch.1 non-inverted output FO1

26 SP FG mode select input

SFG 2

Control circuit power supply VDD

27 SP FG signal input

FG 3

SP Hall element 1 positive input H1H

28 SP control signal input

EC 4

SP Hall element 1 negative input H1L

29 SP reference voltage input

ECR 5

SP Hall element 2 positive input H2H

30 Ch.5 control signal input

IN5 6

SP Hall element 2 negative input H2L

31 Ch.4 control signal input

IN4 7

SP Hall element 3 positive input H3H

32 Ch.3 control signal input

IN3 8

SP Hall element 3 negative input H3L

33 Ch.2 control signal input

IN2 9

Hall-bias output VH

34 Ch.1 control signal input

IN1 10

SP Motor drive power supply VMSP1

35 Ch.1 feedback output

FB1 11

SP current detection CS

36 Ch.2 feedback output

FB2 12

SP Driver output 1 A1

37 Ch.3 feedback output

FB3 13

SP Driver common Source output RCS1

38 Ch.4 feedback output

FB4 14

SP Driver output 2 A2

39 Ch.5 feedback output

FB5 15

SP Driver output 3 A3

40 Ch reference voltage input

VREF 16

SP Driver common Source output RCS2

41 SP Break mode select input

BMS 17

SP Motor drive power supply VMSP2

42 Total shutdown input

STBY 18

Ch.4 and 5 Motor drive power supply VMST

43 Ch.3 inverted output

RO3 19

Ch.4 non-inverted output FO4

44 Ch.3 non-inverted output

FO3 20

Ch.4 inverted output RO4

45 Ch.1 to 3 Coil drive GND

PGAC 21

Ch4 and 5 Motor drive GND PGST

46 Ch1 to 3 Coil drive power supply

VMAC 22

Ch.5 non-inverted output FO5

47 Ch.2 inverted output

RO2 23

CH5 inverted output RO5

48 CH2 non-inverted output

FO2 24

GND Symbol

Ch.1 inverted output RO1

25 Control circuit GND

1

Description Symbol

No Description

No

„ Pin Descriptions

„ Absolute Maximum Ratings

„ Operating Supply Voltage Range

l=19,20,23,24,25,26, 44,45,47,48

V

7.0 V (l)

Drive output voltage

q=44,45,47,48

mA

±

1000 I (q)

Drive output current for ch.4 and ch.5

Note) 4 o=37,38,39,40,41

mA

±

3000 I (o)

Drive power supply/output instantaneous current

spindle

V -0.3 to 6.0

VMSP,VMST, VMAC,VDD Supply voltage applied

range

2 mA

1200 IVMSP

Supply current

3000 IVMAC

2000 IVMST

3 mW

307.9 PD

Power dissipation

p=19,20,23,24,25,26

mA

±

1000 I (p)

Drive output current for ch.1,2 and ch.3

m=37,39,40

V

7.0 V (m)

Drive output voltage

n=2,3,4,5,6,7,8,9,10,1 1,12,13,14,15,16,17,18

,28,29,30,31,32,33

V

GND to VDD V (n)

Control signal input voltage

100 IVDD

°C

1

−55 to 150

Tstg

Storage temperature

x=34

mA

30 IHB(x)

Hall bias current

V 6.0

VMST,VMAC VDD Supply voltage

1

°C

−30 to 85

Topr

Operating ambient temperature

Note Unit

Rating Symbol

Parameter

Note)1: Ta = 25°C except storage temperature and operating ambient temperature.

2: Make sure that channels 1 to 5 do not have a current flow exceeding 1000 mA.

3: Power dissipation shows the value of only package at Ta = 85°C.

4: The above drive output current (±3000 mA) is permissible for a period exceeding 1 ms.

Note) Do not apply current or voltage from outside to any pin not listed above other than power supply and ground pin.

In the current circuit, (+) means current flowing into IC and (-) means current flowing out of IC.

5.0 5.0 Typ.

V 5.5

3.5 VMAC

VMST VMSP

V 5.5

4.0 VDD

Operating Supply Voltage Range

Unit Max.

Min.

Symbol Parameter

„ Electrical Characteristics V

=VMSP=VMAC=VMSL=5.0V,ECR=V

=1.65V,STBY=3.3V,R

=8Ω Note) 1, Ta=25°C±2°C unless otherwise specified.

Ω 0.50

⎯ 0.32 I_O=−500mA

R_OH Upper-side output-ON resistance

mA 1200

1000 800

R_CS=0.22Ω I_TL

Torque limit current

<Hall amp.>

Ω 60

40 20

I_BH=20mA R_HB

Hall bias resistance

<Hall bias>

V

⎯ 0.5

⎯ (Reset)

VRRL Low-level input voltage

V

⎯ 0.7

⎯ (Reset)

VSBL STBY low-level input voltage

[Standby operation]

mV 88

50 7

INSP_DZ(+) Dead zone (+)

V

⎯ 2.2 1.1

INECR Reference input voltage range

<Torque control>

<Output>

µA

⎯ 1 -1

I_BH Input bias current

A/V 1.59

1.33 1.07

R_CS=0.22Ω A_CS

Input/Output gain

mV 88

50 7

INSP_DZ(−) Dead zone (+)

Ω 0.45

⎯ 0.29 I_O= 500mA

R_OH Lower-side output-ON resistance

⎯ V

⎯ 1.8

(Active) VSBH

STBY high-level input voltage

µA

⎯ 20

⎯ STBY=H

IDDS Control supply current in

standby mode

mA 16

⎯ 12 STBY=H

IDDA Control supply current under no

input

[VREF Rest]

⎯ V

⎯ 1.1

(Active) VRRH

High-level input voltage

[SP Driver block]

µA

⎯ 3

⎯ I_BH

Input bias current

V 4.0

2.5 1.5

V_HBR Common-mode input voltage range

mVp-p

1000 200

50 V_INH

Allowable Input current

STBY=L Condition

⎯ Typ.

µA

⎯ 20 IVMS

Power supply current in standby mode

Unit Max.

Min.

Symbol Parameter

(Reference values for design)

°C

30

⎯

∆TTSD Thermal shutdown

hysteresis width [Thermal shutdown]

°C

⎯

160

⎯

TTSD

Thermal shutdown circuit operating temperature

Condition Min. Typ. Max. Unit

Symbol

Parameter

„ Electrical Characteristics V

=VMSP=VMAC=VMSL=5.0V,ECR=V

=1.65V,STBY=3.3V,R

=8Ω Note) 1, Ta=25°C±2°C unless otherwise specified.

<Brake mode selection switch>

<FG>

⎯ V

⎯ 2.6

V_FG=3.3V,I_FG= −0.01mA R_FG=20kΩ FGH

High-level FG output

V

⎯ 0.2

⎯ V_FG=3.3V,I_FG= −0.01mA

R_FG=20kΩ FGL

Low-level FG output

⎯ V

⎯ 2.6

VSFGH High-level SFG input voltage

V

⎯ 0.5

⎯ VSFGL

Low-level SFG input voltage

⎯ V

⎯ 2.6

(Reverse Brake) VBMGH

High-level BMS input voltage

V

⎯ 0.5

⎯ (Short Brake)

VBMGL Low-level BMS input voltage

mV

⎯ +50 RL=8Ω -50

VIN=VREF=1.65V VOFS4

,5 Ch.4 and ch.5 output offset

voltage

mV

⎯ +70 RL=8Ω -70

VIN=VREF=1.65V VOFS1

to 3 Ch.1 to ch.3 output offset

voltage

Ω 2.0

⎯ 1.3 RL=8Ω

RON2, 3 Ch.2 and ch.3 output-ON

resistance (Upper + Lower) [ch. Driver block]

kHz 288

230 172

FTR PWM frequency

mV 40

25 RL=8Ω,RIN=0Ω 10

VZD4,5 Ch4,5 input conversion

dead zone

Ω 2.3

⎯ 1.5 RL=8Ω

RON1 Ch.1 output-ON resistance

(Upper + Lower)

Ω 1.7

⎯ 1.1 RL=8Ω

RON4, 5 Ch.4 and ch.5 output-ON

resistance (Upper + Lower)

dB 18.3

16.3 RL=8Ω,RIN=15kΩ 14.3

G1,2,3 Ch.1 to ch.3 voltage gain(+)

dB 20.0

18.0 RL=8Ω,RIN=0Ω 16.0

G4,5 Ch.4 and ch.5 voltage gain(+)

dB

⎯ +1.5 RL=8Ω -1.5

GR1to5 (+)/(−) relative gain

Condition Min. Typ. Max. Unit

Symbol

Parameter

„ Phase Conditions of Hall Input and Output Current

H1 H3 H2 H2 H1 H3

BMS="L"

BMS="H"

BMS="H"

BMS="H"

BMS="L" or Open

IA3 IA1

IA2 FG1 FG3 ECR EC Hall input

BMS="H" : Reverse Brake BMS="L" : Short Brake

A B C D E F

BMS="L"

Flow out

Flow in Flow out

Flow in Flow out

Flow in

„ Package Dissipation

0 25 50 75 100 150

0 0.5 1.0 1.5 2.0

125

Independent IC without a heat sink Rth(j-a)=211.1 C/W

Rth(j-a)=92.7 C/W

2.510 2.5

3.0

1.348

0.592

Mounted on standard board (four layer) (glass epoxy:50mm×50mm×0.8mm Heatsink mounted

Rth(j-a)=49.8 C/W

Mounted on standard board (one surface ) (glass epoxy:50mm×50mm×0.8mm With out heatsink mounted

Power dissipation PD (W)

Ambient temperature Ta ( C)

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