BD6669FV
Motor driver ICs
Rev.A 1/16
3Phase spindle motor driver for CD-ROM
BD6669FV
BD6669FV is a 3-phase spindle motor driver adopting 180° PWM direct driving s yst em. Noise occurr ed from t he motor
driver when the disc is driven can be reduced. Low power consumption and low heat operation are achieved by using
DMOS FET and driving directly.
zA pplications
CD-ROM
zFeatures
1) Direct-PWM-Linear driving system.
2) Built in power save circuit.
3) Built in current limit circuit.
4) Built in FG-output.
5) Built in hall bias circuit.
6) Built in reverse protection circuit.
7) Built in short brake circuit.
8) Low consumption by MOS-FET.
9) Built in capacitor for oscillator.
10) Built in rotation detect.
zA bsolute maximum ratings (Ta=25°C)
Parameter Symbol Limits Unit
Power supply voltage V
CC
Tj
MAX
7V
V
Supply voltage for motor V
M
7
20 V
VG pin voltage V
G
I
OMAX
Topr
1000
mW
°C
°C
Operating temperature range
150 °C
Junction temperature
Power dissipation
Output current
Storage temperature range
Pd
Tstg
1020
−20 to +75
−55 to +150
mA
Reduce power by 8.16mW for each degree above 25°C.
∗2 70mm×70mm×1.6mm glass epoxy board.
∗1 However, do not exceed Pd, ASO and Tj=150°C.
∗1
∗2
zRecommended operating c onditions
Parameter
Supply voltage for motor
VG pin voltage
This product described in this specification isn't judged whether it applies to cocom regulations.
Please confirm in case of export.
This product is not designed for protection against radioactive rays.
Power supply voltage V
CC
4.5 5.5
−
V
M
3 6.5 V
V
V
−
V
G
7.5 14
−
Symbol Min. Typ. Max. Unit
BD6669FV
Motor driver ICs
Rev.A 2/16
zBlock diagram
Driver Matrix
U-Pre
Driver
L-Pre
Driver
A31 128
27
26
25
24
23
22
21
20
19
18
17
16
15
2
3
4
5
6
7
8
9
10
11
12
13
14
A21
A32
A22
A11
A12
H1+
H1−
H2+
H2−
H3+
H3−
VM1
VH
+
−
+
−
+
−
+
−
+
−
Matrix
Torque
AMP
+
−
+
−
+
−
+
−
+
−
+
−
RNF1
FG
PS
EC
ECR
VM2
SB
CNF
VPUMP
CP2
CP1
GND
VCC
RNF2
Hall
bias
Charge
Pump
EXOR OSC
PWM
Comp
Reverse Detect
Fig.1
Hall comp
Hall Amp
TSD
PS
CL
DQ
CK
Current
sense AMP
BD6669FV
Motor driver ICs
Rev.A 3/16
zPin descriptions
Pin No. Function
Hall input AMP 2 positive input
Pin name
H
2
+
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Short brake pinSB
Hall input AMP 3 negative inputH
3
−
Hall input AMP 2 negative input
H
2
−
Hall input AMP 3 positive input
H
3
+
Hall input AMP 1 negative input
Output3 for motor
Resistor connection pin for current sense
Power supply for signal division
Power supply for driver
Torque control standard voltage input terminal
Capacitor connection pin for phase compensation
GND
Hall bias pin
Hall input AMP 1 positive input
Output3 for motor
Power supply fo driver
Output1 for motor
Output1 for motor
Output2 for motor
Output2 for motor
Capacitor pin 1 for charge pump
Torque control voltage input terminal
H
1
−
Capacitor pin 2 for charge pumpCP2
Capacitor connection pin for charge pumpV
PUMP
R
NF2
V
CC
V
M2
FG output pin
FG
ECR
EC
CP1
Power save pin
Resistor connection pin for current sense
PS
R
NF1
CNF
GND
VH
H
1
+
A12
A11
A21
A32
A22
V
M1
A31
BD6669FV
Motor driver ICs
Rev.A 4/16
zInput output circuit s
Output pins
A
1
: Pin1, 2, A
2
: Pin3, 4, A
3
: Pin5, 6
Hall bias
Pin8
CNF
Pin19
Torque amplifier
ECR : Pin24, EC : Pin25
Short brake
Pin20
FG output
FG : Pin26
RNF2
Pin21
Power save
Pin27
CP1 output
Pin16 CP2 / V
PUMP
output
CP2 : Pin17, V
PUMP
: Pin18
Hall input
H1+ : Pin9, H1− : Pin10, H2+ : Pin11, H2− : Pin12,
H3+ : Pin13, H3− : Pin14
A
1
A
2
A
3
VM
RNF1
V
CC
Hn+
1k
5k
1k
1k
1k
V
CC
Hn
V
CC
V
H
(Pin8)
100k
CP1 (Pin16)
V
CC
50
V
CC
FG (Pin26)
V
CC
50
V
CC
V
M
V
PUMP
(Pin18)
CP2 (Pin17)
2k 2k
CNF (Pin19)
V
CC
50
20k
SB (Pin20)
V
CC
30k
20k
PS (Pin27)
V
CC
30k
355
RNF2 (Pin21)
V
CC
1k
ECR (Pin24)
EC (Pin25)
V
CC
1k
BD6669FV
Motor driver ICs
Rev.A 5/16
zElectrical characteristics (unless otherwise noted, Ta=25°C, VCC=5V, VM=5V)
Parameter Conditions
Circuit current 1
Circuit current 2
ON voltage range
OFF voltage range
Hall bias voltage
Input bias current
Minimum input level
Input voltage range
Offset voltage (+)
Hall hysteresis level (+)
Hall hysteresis level (−)
In-phase input voltage range
Fig.2
Fig.2
Fig.2
Fig.2
Fig.2
Fig.4
Fig.4
Fig.4
Fig.8
Fig.8
Fig.6
Fig.6
Fig.6
Fig.6
Fig.7
Fig.7
Fig.6
Fig.5
Fig.3
Fig.6
Fig.9
Test Circuit
I
HB
=10mA
E
C
=E
CR
=1.65V
Sutand by mode
Sutand by mode
Hall input Amp
Short brake
Linear range 0.5V∼3.3V
Offset voltage (−)
Input current
Input / Output gain
Output ON-resistance
Torque limit voltage
<Charge pump voltage>
Charge pump output voltage
I
FG
=+100µA
V
CC
=V
M
=5V
<Total>
<Hall bias>
<Power save>
<Hall AMP>
<Torque control>
ON voltage range
OFF voltage range
I
O
=±600mA (Upper+Lower)
<Short brake SW>
<Output>
Low voltage Fig.6
High voltage I
FG
=−100µA
<FG output>
Symbol
I
CC
1
I
CC
2
V
PSON
V
PSOFF
V
HB
I
HA
V
HAR
V
INH
V
HYS+
V
HYS−
E
C
, E
CR
Ecofs
+
Ecofs
−
G
EC
E
CIN
R
ON
V
TL
V
FGL
V
FGH
Vpump
V
SBON
V
SBOFF
Max.
1.4
−
3.6
5
17
5
40
100
−
1.0
−
−5
−
1.2
14
0.24
0.7
0.4
−
1.0
−
Min.
−
−
0.6
1.4
5
2.5
−8.0
100
5
0
5
−100
−12
0.8
−
0.3
0.16
6
2.5
−
4.6
Typ.
1.0
−2.0
−5−40 −20
−
11
−
−
−
20
−
−
50
−50
−2.5
1.0
0.5
0.2
−
10
−
−
−
Unit
µA
V
V
V
V
µA
mA
mV
PP
mV
mV
mV
V
mV
µA
A/V
Ω
V
V
V
V
V
V
zMeasuring circuit
1. Value of resistor (Fig.2∼Fig.9)
5, 6pin
R
L
A
1
R
L
=5Ω, R
NF
=0.33Ω
A
2
A
3
GND
R
NF
3, 4pin 1, 2pin 13, 16pin
BD6669FV
Motor driver ICs
Rev.A 6/16
2. Input-output table
Pin No.
Condition1
Condition2
Condition3
Condition4
Condition5
Condition6
L
H
M
M
H
L
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
H
L
L
H
M
M
M
M
H
L
L
H
H
L
L
H
L
H
L
H
H
L
L
H
L
H
L
H
H
L
L
H
H
L
H
L
H
L
L
H
H
L
23 24 282625
Input condition Output condition
EC<ECR EC>ECR
27 17.18 14.15 11.12 17.18 14.15 11.12
H1
+
H1
−
H3
−
H2
−
H2
+
H3
+
A1A2A3A1A2A3
H
L
H
L
L
H
H : Upper Tr ON
L
: Lower Tr ON
Output logic
H=2.8V
M=2.5V
L=2.2V
Input voltage
3. Measuring circuit
Fig.2
H1
V
PS
5V
1.65V
R
NF
0.01µF
10kΩ
5V
R
L
H2 H3H1 H2 H3
R
L
R
L
IHB
R
NF1
PS
FG
EC
ECR
VM
VCC
RNF2
SB
CNF
VPUM
CP2
CP
GN
A3
A3
A2
A2
A1
A1
VM
VH
H1+
H1−
H2+
H2−
H3+
H3−
V
HB
: Value of V
1
V
PS
=5 [V]
I
HB
=10 [mA]
V
PSON
: Range of Vps output pins become
input-output table.
V
PSOFF
: Range of Vps output pins become
open.
I
CC
1 : Value of A
1
V
PS
=0 [V]
Hall input condition : condition1
I
CC
2 : Value of A
1
V
PS
=5 [V]
Hall input condition : condition1
10
V
A
BD6669FV
Motor driver ICs
Rev.A 7/16
Fig.3
H1
+
1.65V
5V
R
L
H2
+
H3
+
H1
−
H2
−
H3
−
R
L
R
L
V
RNF2
R
NF1
PS
FG
EC
ECR
V
M
V
CC
R
NF2
SB
C
NF
V
PUM
CP2
CP
GN
A3
A3
A2
A2
A1
A1
V
M
V
H
H1
+
H1
−
H2
+
H2
−
H3
+
H3
−
V
PS
=5 [V]
V
TL
: Range of V
RNF2
that V
M
current (I
M
)
become 0A.
5V
5V
A
1
Fig.4
H1
+
1.65V
R
NF
0.01µF
10kΩ
5V
R
L
H2
+
H3
+
H1
−
H2
−
H3
−
R
L
R
L
R
NF1
PS
FG
EC
ECR
V
M
V
CC
R
NF2
SB
C
NF
V
PUM
CP2
CP
GN
A3
A3
A2
A2
A1
A1
V
M
V
H
H1
+
H1
−
H2
+
H2
−
H3
+
H3
−
VHAR : HALL voltage range that output pins
become input-output table.
VINH : HALL input level that output pins
become input-output table.
IHA : Value of 'A1' (Hn+=2.5V, Hn−=2.0V)
Value of 'A2' (Hn+=2.0V, Hn−=2.5V)
n=1, 2, 3
5V 5V 10V
Hn−=2.5 V
VINH : Hn+−Hn−
A
1
A
1
A
2
A
1
A
2
A
2
BD6669FV
Motor driver ICs
Rev.A 8/16
Fig.5
H1
+
1.65V
5V
600mA
H2
+
H3
+
H1
−
H2
−
H3
−
R
NF1
PS
FG
EC
ECR
V
M
V
CC
R
NF2
SB
C
NF
V
PUM
CP2
CP
GN
A3
A3
A2
A2
A1
A1
V
M
V
H
H1
+
H1
−
H2
+
H2
−
H3
+
H3
−
Ron=(VOH + VOL) / 0.6
VOH : In case output measurement pin='H' by
input condition and I
O
=−600mA,
value of 'VOH'
VOL : In case output measurement pin='L' by
input condition and I
O
=600mA,
value of 'VOL'
5V5V
A
1
5, 6pin
A
2
3, 4pin
A
3
1, 2pin
A
1
5, 6pin
A
2
3, 4pin
A
3
1, 2pin
R
NF1
V
OL
600mA
V
M
V
OH
Fig.6
V
ECR
R
NF
0.01µF
10kΩ
5V
R
L
H2 H3H1H1 H2 H3
R
L
R
L
R
NF1
PS
FG
EC
ECR
V
M
V
CC
R
NF2
SB
C
NF
V
PUM
CP2
CP
GN
A3
A3
A2
A2
A1
A1
V
M
V
H
H1
+
H1
−
H2
+
H2
−
H3
+
H3
−
G
EC
= { (V
1
−V
2
) / (1.5−1.2) } / 0.5
When E
CR
=1.65V
value of V
1
(EC=1.2V)
value of V
2
(EC=1.5V)
E
C
, E
CR
: Torque control operating range.
E
COFS
: E
C
voltage range that V
M
current (IM)
is 0A.
E
CIN
: Value of 'A2' (E
C
=E
CR
=1.65V)
Value of 'A3' (E
C
=E
CR
=1.65V)
V
FGH
: Value of V
1
(I
FG
=−100µA)
Hall input condition 3.
V
FGL
: Value of V
1
(I
FG
=+100µA)
Hall input condition 4.
5V
5V 10V
IFG
A
3
V
EC
A2
A1
A1
BD6669FV
Motor driver ICs
Rev.A 9/16
Fig.7
H1+
1.65V
RNF VSB
0.01µF
10kΩ
5V
RL
H2+H3+
H1−H2−H3−
RL
RL
R
NF1
PS
FG
EC
ECR
VM
VCC
RNF2
SB
CNF
VPUM
CP2
CP
GN
A3
A3
A2
A2
A1
A1
VM
VH
H1+
H1−
H2+
H2−
H3+
H3−
VSBON : Volatge range of 'VSB' that output
pins become 'L'.
VSBOFF : Range of 'VSB' that output pins
become input-output table.
5V 5V 10V
Fig.8
H1+
1.65V
R
NF
0.01µF
10kΩ
5V
R
L
H2+H3+
H1−H2−H3−
R
L
R
L
R
NF1
PS
FG
EC
ECR
VM
VCC
RNF2
SB
CNF
VPUM
CP2
CP
GN
A3
A3
A2
A2
A1
A1
VM
VH
H1+
H1−
H2+
H2−
H3+
H3−
VHYS : Voltage difference H3+ to H3− that FG
voltage change V1.
5V 5V 10V
V
1
BD6669FV
Motor driver ICs
Rev.A 10/16
Fig.9
H1
+
1.65V
R
NF
0.01µF
10kΩ
5V
R
L
H2
+
H3
+
H1
−
H2
−
H3
−
R
L
R
L
R
NF1
PS
FG
EC
ECR
V
M
V
CC
R
NF2
SB
C
NF
V
PUM
CP2
CP
GN
A3
A3
A2
A2
A1
A1
V
M
V
H
H1
+
H1
−
H2
+
H2
−
H3
+
H3
−
VPUMP : Value of V1.
5V 5V
0.1µF
0.1µF
V1
BD6669FV
Motor driver ICs
Rev.A 11/16
zCircuit operation
1. Application
(1) Hall input
Hall element can be used with both series and parallel connection. Determining R1 and R2, make sure to leave an
adequate margin for temperature and dispertion in order to satisfy in-phase input voltage range and minimum input
level.
A motor doesn’t reach the regular number of rot ation, if hall input level decrease under high temperature.
V
CC
R1
R2
R1
V
H
R2
V
H
Fig.10
Parallel connection
H2 H3
H1
V
CC
Series connection
H2
H1
H3
2.Torque voltage
By the voltage difference betw een EC and ECR, the current driving motor changes as shown in Fig.11 below .
I
TL
I
M
[A]
0ECR EC [V]
Fig.11
Forward torque Reverse torque
The gain of the current driving motor for the voltage of EC can be changed by the resistance of RNF.
BD6669FV
Motor driver ICs
Rev.A 12/16
(3) Current limit
The maximum value of the current driving motor can be changed by the resistance of RNF.
I
TLL=0.2 / RNF (A)
(4) Short brake
The short brake is switched by SB pin and its operation is show n in table below.
SB EC < ECR
H
LShort brake
Rotating forward
EC > ECR
Short brake
Reverse brake
Output upper (3phase) FET turn off and low er (3phase) FET turn on in short brake mode, as show n Fig.12.
Fig.12
OFF
ON
OFF
ON
MOTOR
OFF
ON
RNF
V
M
(5) Reverse detection
Reverse detection is constructed as shown in Fig.13. Output is opened when EC>ECR and the motor is rotating
reverse.
Fig.13
H2+
EC
OUT
ECR
H2−
H3+
H3−
+
−
+
−
+
−
DQ
CK
BD6669FV
Motor driver ICs
Rev.A 13/16
Motor rotation at reverse detection
Reverse detection is triggered and set outputs to open,
when motor rotates in the reverse direction.
Deceleration (reverse torque) when EC > ECR
Forward rotation (forward torque) when EC < ECR
Stop
Motor idles in the reverse direction by inertia.
BD6669FV
Motor driver ICs
Rev.A 14/16
(6) Timing chart
H1+
H2+
H3+
30°
A1 Output current
A1 Output voltage
A2 Output current
A2 Output voltage
A3 Output current
A3 Output voltage
Fig.14
BD6669FV
Motor driver ICs
Rev.A 15/16
zA pplication example
Driver Matrix
U-Pre
Driver
L-Pre
Driver
A31
A21
A32
A22
A11
A12
H1+
H1−
H2+
H2−
H3+
H3−
V
M
1
V
H
+
−
+
−
+
−
+
−
+
−
Matrix
Torque
AMP
+
−
+
−
+
−
+
−
+
−
+
−
R
NF
1
FG
PS
EC
ECR
V
M
2
SB
C
NF
V
PUMP
CP2
CP1
GND
V
CC
R
NF
2
Hall
bias
Charge
Pump
EXOR OSC
PWM
Comp
Reverse Detect
Hall comp
Hall Amp
TSD
PS
CL
DQ
CK
Current
sense AMP
100Ω
100Ω
0.33
V
CC
Servo
signal
10µF
0.1µF
0.1µF
100pF
10kΩ
1.65V
Fig.15
1µF
H3
H2
H1
V
CC
zOperation notes
1. Absolute maximum ratings
Absolute maximum ratings are those values which, if exceeded, may cause the life of a device to become significantly
shorted. Moreover , the exact failure mode cannot be defined, such as a short or an open. Phy sical countermeasures,
such as a fuse, need to be considered when using a device beyond it s maximum ratings.
2. GND potential
The GND terminal should be the location of the lowest voltage on the chip. All other terminals should never go under
this GND level, even in transition.
BD6669FV
Motor driver ICs
Rev.A 16/16
3. Thermal design
The thermal design should allow enough margin for actual power dissip ation.
4. Mounting failures
Mounting failures, such as misdirection or mismounts, may destroy the device.
5. Electromagnetic fields
A strong electromagnetic field may cause malfunctions.
6. Coil current flowing into VM
A coil current-flows from motor into VM when torque control input changes from EC<ECR into EC>ECR, and VM
voltage rises if VM voltage source doesn’t have an ability of current drain.
Make sure that surrounding circuits work correctly and aren’t destroyed, when V M voltage rises.
Physical countermeasures, such as a diode for voltage clamp, need to be considered under these conditions.
7. CNF pin
An appropriate capacitor (100pF (typ.)) at CNF pin make motor current smooth. Make su re the motor current doesn’t
oscillate, even in transition.
zElectrical characteristics curve
Fig.16 Power dissipation curve
∗ 70mm×70mm×1.6mm glass epoxy board.
∗ Reduce power by 8.16mW for each degree above 25°C.
05025 75 100 125 150
0.50
1.02
0
Ta (°C)
Pd (W)
zExternal dimensions (Unit s : mm)
SSOP-B28
0.15±0.1
0.1
1.15±0.1
1
0.65
7.6±0.3
5.6±0.2
28
10.0±0.2
0.3Min.
14
15
0.22±0.1 0.1
Appendix
Appendix1-Rev1.1
The products listed in this document are designed to be used with ordinary electronic equipment or devices
(such as audio visual equipment, office-automation equipment, communications devices, electrical
appliances and electronic toys).
Should you intend to use these products with equipment or devices which require an extremely high level of
reliability and the malfunction of with would directly endanger human life (such as medical instruments,
transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other
safety devices), please be sure to consult with our sales representative in advance.
Notes
No technical content pages of this document may be reproduced in any form or transmitted by any
means without prior permission of ROHM CO.,LTD.
The contents described herein are subject to change without notice. The specifications for the
product described in this document are for reference only. Upon actual use, therefore, please request
that specifications to be separately delivered.
Application circuit diagrams and circuit constants contained herein are shown as examples of standard
use and operation. Please pay careful attention to the peripheral conditions when designing circuits
and deciding upon circuit constants in the set.
Any data, including, but not limited to application circuit diagrams information, described herein
are intended only as illustrations of such devices and not as the specifications for such devices. ROHM
CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any
third party's intellectual property rights or other proprietary rights, and further, assumes no liability of
whatsoever nature in the event of any such infringement, or arising from or connected with or related
to the use of such devices.
Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or
otherwise dispose of the same, no express or implied right or license to practice or commercially
exploit any intellectual property rights or other proprietary rights owned or controlled by
ROHM CO., LTD. is granted to any such buyer.
Products listed in this document are no antiradiation design.
About Export Control Order in Japan
Products described herein are the objects of controlled goods in Annex 1 (Item 16) of Export Trade Control
Order in Japan.
In case of export from Japan, please confirm if it applies to "objective" criteria or an "informed" (by MITI clause)
on the basis of "catch all controls for Non-Proliferation of Weapons of Mass Destruction.
