ROHM BA6859AFP-Y Technical data

A

System Motor Driver ICs for CD/DVD Players

1ch Spindle Motor Driver ICs

BA6859AFP-Y,BA6664FM,BD6671FM

●Description

ROHM’s spindle motor drivers incorporate the 3-phase full-wave pseudo-linear drive system(BA6859AFP-Y, BA6664FM) and 180 ° electrifying direct PWM drive system(BD6671FM).Smooth rotation characteristic performance is ensured. Besides, high torque is provided in a wide output range because the output stage incorporates low-saturation voltage NPN transistors (BA6859AFP-Y, BA6664FM) and low-power consumption MOSFET (BA6671FM).

●Features

1) 3-phase full-wave pseudo-linear system (BA6859AFP-Y, BA6664FM)

2) 180° electrifying direct drive PWM system (BD6671FM)

3) Power saving, TSD (thermal shutdown) functions built in

4) Current limiting, Hall bias circuit built in

5) FG output built in

6) 3-phase component FG output built in (BA6664FM, BD6671FM)

7) Circuit direction detection function built in (BA6859AFP-Y, BA6664FM)

8) Reverse rotation prevention circuit built in

9) Short brake pin built in (BA6859AFP-Y, BA6664FM)

10) Brake mode selection pin built in (BA6859AFP-Y, BD6671FM)

11) Supports DSP 3.3 V

●Applications

Used for car, CD and DVD players incorporating changer function

●Absolute maximum ratings (Ta=25℃)

Parameter Symbol

Applied voltage VCC 7 7 7 V

Applied voltage VM 15 15 15 V

Applied voltage VG - - 20 V

Power dissipation Pd 1450*1 2200*2 2200*2 mW Operating temperature Topr -40～+85 -40～+85 -40～+85 ℃ Storage temperature Tstg -55～+150 -55～+150 -55～+150 ℃

Output current Iout 1300 1300 2500 mA Junction temperature Tjmax 150 150 150 ℃

*1 Reduced by 11.6 mW/℃ over 25℃, when mounted on a glass epoxy board (70 mm x 70 mm x 1.6 mm). *2 Reduced by 17.6 mW/℃ over 25℃, when mounted on a glass epoxy board (70 mm x 70 mm x 1.6 mm).

●Line up matrix

Parameter Symbol

Power supply voltage

VG pin voltage VG - - 8.5～19 V

VCC 4.5～5.5 4.5～5.5 4.5～5.5 V

VM 3.0～14 3.0～14 4.0～13.2 V

BA6859AFP-Y BA6664FM BD6671FM

Ratings

No.10011EAT03

Unit

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●Electrical characteristics

1) BA6859AFP-Y (Unless otherwise specified, Ta=25℃, VCC=5.0V, VM=12V)

Parameter Symbol

Min. Typ. Max.

Limits

Unit Conditions

Circuit current 1 I Circuit current 2 I

－ 0 0.2 mA PS=L

CC1

－ 5.0 7.5 mA PS=H

CC2

<Power-saving >

ON voltage range V OFF voltage range V

－－ 1.0 V Internal circuit OFF

PSON

2.5 －－ V Internal circuit ON

PSOFF

Hall bias voltage VHB 0.5 0.9 1.5 V IHB=10mA

Input bias current IHA － 0.7 3.0 µA Same phase input voltage range V Mini. input level V H3 hysteresis level V

1.0 － 4.0 V

HAR

50 －－ mVpp One side input level

INH

5 20 40 mV

HYS

Input voltage range EC, E Offset voltage - E Offset voltage + E Input bias current E

COFF-

COFF+

CIN

CR

-3 － 3 µA EC=ECR

0 － 5 V Linear range:0.5～3.3V

-80 -50 -20 mV ECR=1.9V 20 50 80 mV ECR=1.9V

I/O gain GEC 0.56 0.70 0.84 A/V EC=1.2, 1.7V

<FG>

FG output high-level voltage V FG output low-level voltage V

4.5 4.8 － V IFG=-20µA

FGH

－ 0.25 0.4 V IFG=3.0mA

FGL

Duty (reference values) DU － 50 － %

FR output high-level voltage V FR output low-level voltage V

4.1 4.4 － V IFR=-20µA

FRH

－ 0.25 0.4 V IFR=3.0mA

FRL

Output saturation high level voltage VOH － 1.0 1.4 V IO=-600mA Output saturation low level voltage VOL － 0.4 0.7 V IO=600mA Pre-drive current I

－ 35 70 mA EC=0V output open

VML

Output limit current ITL 560 700 840 mA

ON voltage range V OFF voltage range V

2.5 －－ V BR=0V

SBON

－－ 1.0 V BR=0V

SBOFF

ON voltage range V OFF voltage range V

2.5 －－ V EC>ECR, SB=Open

BRON

－－ 1.0 V EC>ECR, SB=Open

BROFF

●Reference: Data

10

8

25℃

-40℃

85℃

6

4

2

Circui t curr ent :Icc2 [mA]

0

4.5 5 5.5 6 6.5 7

Supply voltag e :Vcc[v]

1.5

[V]

OH

1.0

0.5

Output H voltage:V

0.0

0 0.3 0.6 0.9 1.2 1.5

Output C urrent :IOH [v]

85℃

-40℃

25℃

Fig.1 Circuit Current 2

Fig.2 Output Saturation Voltage

at High Level

Fig.3 Output Saturation Voltage

Technical Note

1.5

[V]

OL

1.0

0.5

Output L voltage :V

0.0

0 0.3 0.6 0.9 1.2 1.5

Output C urrent :I

at Low Level

85℃

-40℃

OL

25℃

[A]

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2) BA6664FM(Unless otherwise specified, Ta=25℃, VCC=5.0V, VM=12V)

Parameter Symbol

Min. Typ. Max.

Limits

Unit Conditions

Circuit current 1 I

Circuit current 2 I

－ 0 0.2 mA PS=L, GSW=Open

CC1

－ 6.2 9.1 mA PS=H, GSW=Open

CC2

<Power-saving >

ON voltage range V

OFF voltage range V

－－ 1.0 V Internal current circuit OFF

PSON

2.5 －－ V Internal current circuit ON

PSOFF

Hall bias voltage VHB 0.5 0.9 1.5 V IHB=10mA

Input bias current IHA － 0.7 3.0 µA

Same phase input voltage range V

Mini. input level V

H3 hysteresis level V

1.0 － 4.0 V

HAR

50 －－ mVpp One side input level

INH

5 20 40 mV

HYS

Input voltage range EC, E

Offset voltage - E

Offset voltage + E

Input bias current E

I/O gain low-level G

I/O gain medium-level G

I/O gain high-level G

COFF-

COFF+

CIN

ECL

ECM

ECH

CR

-3 － 3 µA EC=ECR

0.52 0.65 0.78 A/V GSW=L,RNF=0.5Ω

2.24 2.8 3.36 A/V GSW=H,RNF=0.5Ω

0 － 5 V Linear range:0.5～3.3V

-75 -45 -15 mV ECR=1.65V, GSW=L

15 45 75 mV ECR=1.65V, GSW=L

1.04 1.3 1.56 A/V GSW=OPEN,RNF=0.5Ω

<FG>

FG output high-level voltage V

FG output low-level voltage V

4.5 4.8 － V IFG=-20µA

FGH

－ 0.2 0.4 V IFG=3.0mA

FGL

<FG2>

FG output high-level voltage V

FG output low-level voltage V

4.6 4.9 － V

FG2H

－ 0.2 0.4 V I

FG2L

FR output high-level voltage V

FR output low-level voltage V

4.1 4.4 － V IFR=-20µA

FRH

－ 0.2 0.4 V IFR=3.0mA

FRL

Output saturation high-level voltage VOH － 1.0 1.35 V I

Output saturation low-level voltage VOL － 0.4 0.65 V I

Pre-drive current I

－ 35 70 mA EC=0V output open

VML

Output limit current ITL 560 700 840 mA

ON voltage range V

OFF voltage range V

2.5 －－ V BR=0V

SBON

－－ 1.0 V BR=0V

SBOFF

ON voltage range V

OFF voltage range V

2.5 －－ V EC>ECR, SB=Open

BRON

－－ 1.0 V EC>ECR, SB=Open

BROFF

Low voltage range V

High voltage range V

OPEN voltage V

－－ 1.0 V

GSWL

3.0 －－ V

GSWH

GSWOP

－ 2.0 － V

=-20µA

IFG2

=3mA

FG2

=-600mA

OUT

=600mA

OUT

Technical Note

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3) BD6671FM (Unless otherwise specified, Ta=25℃, VCC=5.0V, VM=12V)

Parameter Symbol

Min. Typ. Max.

Limits

Unit Conditions

Circuit current 1 I

Circuit current 2 I

－ 100 200 µA PS=L, GSW=Open

CC1

8 14 20 mA PS=H, GSW=Open

CC2

<Power-saving >

ON voltage range V

OFF voltage range V

－－ 1.0 V Internal current circuit OFF

PSON

2.5 －－ V Internal current circuit ON

PSOFF

Hall bias voltage VHB 0.7 1.0 1.3 V IHB=10mA

Same phase input voltage range V

Mini. input level V

Hall hysteresis level + V

Hall hysteresis level - V

1.4 － 3.6 V

HAR

100 －－ mVpp Both side input level

INH

5 20 40 mV

HYS+

-40 -20 -5 mV

HYS-

Low voltage range V

High voltage range V

OPEN voltage range V

－－ 0.6 V

GSWL

2.0 －－ V

GSWH

GSWOP

－ 1.3 － V

Input voltage range EC, E

Offset voltage + E

Offset voltage - E

Input current E

I/O gain low-level G

I/O gain medium-level G

I/O gain high-level G

COFF+

COFF-

CIN

ECL

ECM

ECH

CR

-11 -2.5 0 µA EC=ECR=1.65V

0.28 0.35 0.42 A/V GSW=L

1.12 1.40 1.68 A/V GSW=H

0 － 5 V Linear range: 0.5～3.0V

5 50 100 mV GSW=M

-100 -50 5 mV GSW=M

0.56 0.70 0.84 A/V GSW=M

Output ON resistance RON － 1.0 1.35 Ω

Output limit current low-level I

Output limit current medium-level I

Output limit current high-level I

340 400 460 mA GSW=L

TLL

680 800 920 mA GSW=M

TLM

1020 1200 1380 mA GSW=H

TLH

High level voltage V

Low level voltage V

4.6 －－ V IFG=-100µA

FGH

－－ 0.4 V IFG=+100µA

FGL

Charge pump output voltage V

12.5 17 19 V

PUMP

Upper side saturation voltage V

Lower side saturation voltage V

0.25 0.45 0.65 V ICP1=-4mA

CP1H

0.2 0.4 0.6 V I

CP1L

Upper side saturation voltage V

Lower side saturation voltage V

0.4 0.6 0.8 V I

CP2H

0.15 0.35 0.55 V I

CP2L

Technical Note

=±600mA

I

OUT

(upper + lower side)

VCC= 5V,VM=12V CP1=CP2=0.1µF

=+4mA

CP1

=-4mA

CP2

=+4mA

CP2

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●Block Diagram, application Circuit Diagram and Pin Function

1) BA6859AFP-Y

Fig.4 BA6859AFP-Y Block Diagram

BA6859AFP-Y Pin Function Table

Pin No. Pin name Function

1 N.C. N.C. 2 N.C. N.C. 3 N.C. N.C.

Pd (W)

2.0

1.45

1.0

0

* Reduced by 11.6 mW/℃ over 25℃, when mounted on a glass epoxy

25 85

Fig.5 Power Dissipation Reduction (BA6859AFP-Y)

board (70 mm x 70 mm x 1.6 mm).

100 50 75 150

125

Ta(℃)

4 A3 Output pin 5 A2 Output pin 6 A1 Output pin 7 GND GND pin 8 H1+ Hall signal input pin

9 H1- Hall signal input pin 10 H2+ Hall signal input pin 11 H2- Hall signal input pin 12 H3+ Hall signal input pin 13 H3- Hall signal input pin 14 VH Hall bias input pin 15 BR Brake mode selection pin

16 CNF

17 SB Short brake pin 18 FR Rotation detection pin 19 ECR Output voltage control reference pin 20 EC Output voltage control pin 21 PS Power-saving pin 22 FG FG signal output pin 23 VCC Power supply pin 24 VM Motor power supply pin

25 RNF

FIN FIN GND

Capacitor connection pin for phase compensation

Resistance connection pin for output current detection

Technical Note

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2) BA6664FM

Hall1

Output to the motor will be opened at a chip tempe 175°C (Typ.). Do not use the IC in excess of a chip rature of temperature of 150°C.

A3

2

A2

4

A1

7

HALL AMP

GND

8

H1+

9

-

H1

10

H2+

11

H2-

12

H3+

13

-

H3

14

Output will be open when the reverse rotation of the motor is detected.

DRIVER

GAIN

CONTROL

CURRENT

TL

+

-

+

-

+

-

+

-

+

-

+

-

SENSE AMP

D Q

CK

TSD

GAIN

SWITCH

VCC

-+

PS

TORQUE SENSE AMP

VCC

R

－

SHORT BRAKE

Q

BRAKE MODE

FIN

Torque limit current and I/O gain settings are made by the RNF resistance value. Resistance of 0.4 to 1.0Ω is recommended.

0.5Ω

RNF

28

RNF

VM

27

GSW

26

VCC

25

FG

24

PS

23

EC

22

ECR

21

FR

20

FG2

19

SB

18

CNF

17

BR

16

VH

15Hall Bias

500Ω

0.1µF

V

M

+

1µF

-

SERVO SIGNAL

500Ω

Capacitor for noise level mitigation. The recommended value is 0.47 µF to 10 µF.

+

1µF

-

I/O gain

Speed detection is attained by FG signal output.

The power saving mode is turned ON by low-level voltage, and the circuit current and motor output will stop.

The motor torque current is controllable.

If the ECR voltage is set between 1.6 and 2.2V, the maximum torque limit current will be obtained.

The detection of motor rotation direction is possible.

The short brake is operated regardless of brake mode settings.

Connect a capacitor for phase compensation. The recommended value is 0.1µF.

Short brake and reversed brake settings are possible.

Resistor for setting Hall input level . The recommended value is 200 Ω to 1k Ω.

Fig.6 BA6664FM Block Diagram

BA6664FM Pin Function Table

Pin No. Pin name Function

1 N.C. N.C.

2 A3 Output pin

3 N.C. N.C.

4 A2 Output pin

5 N.C N.C.

6 N.C. N.C.

7 A1 Output pin

Pd[W]

8 GND GND pin

9 H1+ Hall signal input pin 10 H1- Hall signal input pin

2.2

2.0

11 H2+ Hall signal input pin 12 H2- Hall signal input pin 13 H3+ Hall signal input pin 14 H3- Hall bias input pin 15 VH Hall bias input pin 16 BR Brake mode pin

Capacitor connection pin for phase compensation

1.0

17 CNF

18 SB Short brake pin 19 FG2 FG 3-phase component output pin 20 FR Rotation detection pin

0 25 50 75 100 125 150

85

Ta(℃)

21 ECR Output voltage control reference pin 22 EC Output voltage control pin 23 PS Power-saving pin

Fig.7 Power Dissipation Reduction (BA6664FM、BD6671FM)

* Reduced by 11.6 mW/℃ over 25℃, when mounted on a glass epoxy board

(70 mm x 70 mm x 1.6 mm).

24 FG FG signal output pin 25 VCC Power supply pin 26 GSW Gain switching pin 27 VM Motor power supply pin

28 RNF

Resistance connection pin fo current detection

FIN FIN GND

Technical Note

output

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ROHM BA6859AFP-Y Technical data

Specifications and Main Features

Frequently Asked Questions

User Manual