Motor Drivers for Printers
Three-phase Brushless
Motor Pre-drivers for Paper Feed
BD6761FS,BD6762FV
No.10016EAT01
●Description
This product is the motor predriver for high-side/low-side N-channel MOS-FET drive, which has the built-in booster (step-up)
circuit. BD6761FS uses the drive type controlled by the servo signal input from outside and BD6762FV incorporates a servo
circuit (Speed discriminator + PLL servo).
●Features
1) Predriver for high-side/low-side N-channel MOS-FET
2) Built-in booster (step-up) circuit
3) Built-in FG and hysteresis amplifiers
4) Built-in current limit circuit
5) Built-in thermal shutdown circuit
6) Built-in forward/reverse rotation switching circuit (BD6761FS, FD6762FV)
7) Built-in short brake circuit (BD6761FS, BD6762FV)
8) Built-in low voltage protection circuit (BD6761FS, BD6762FV)
9) Built-in speed lock detection circuit (BD6762FV)
10) Built-in motor lock protection circuit (BD6762FV)
11) Built-in start-stop circuit (BD6762FV)
12) Built-in servo circuit (Speed discriminator + PLL) (BD6762FV)
13) Built-in frequency multiplication circuit (BD6762FV)
14) 180°, direct PWM drive (BD6761FS)
15) 120°, slope switchable direct PWM drive (BD6762FV)
●Applications
Main motor for paper feed of the laser beam printer and PPC
●Absolute
Maximum Ratings (Ta=25℃)
Parameter
Applied voltage
Applied voltage
Pin input voltage
Power dissipation
Operating temperature range
Storage temperature range
Junction temperature
Symbol
VCC
VG
Vin
Pd
TOPR
TSTG
Tjmax
Ratings
BD6761FS
36
36
VREG
950
(
※
1)
-35 ~ +75
-40 ~ +150
150
BD6762FV
36
36
VREG
1100
(
※
2)
-25 ~ +75
-40 ~ +150
150
Unit
V
V
V
mW
℃
℃
℃
※1
Reduced by 7.6 mW/℃ over 25°℃, when mounted on a glass epoxy board (70 mm
70 mm
1.6 mm).
※2
Reduced by 8.8 mW/℃ over 25℃, when mounted on a glass epoxy board (70 mm
70 mm
1.6 mm).
●Line
up Matrix
BD6761FS
Power supply voltage (VCC)
Drive type
Servo
16~28
180°
No
BD6762FV
16~28
120° / 120° slope
Yes
Unit
V
－
－
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© 2010 ROHM Co., Ltd. All rights reserved.
1/22
2010.06 - Rev.A
BD6761FS,BD6762FV
●Electrical
Characteristics
BD6761FS (Unless otherwise specified, Ta=25°C, VCC=24.0V)
Limits
Parameter
Symbol
Min.
Typ.
Overall
Circuit current
ICC
10
15
VREG voltage
VREG
5.5
6
Hall amp
Input bias current
IHA
－
0.7
In-phase input voltage range
VHAR
1.5
－
Input level
VINH
30
－
PWM
High CFE voltage
VHPCFE
3.0
3.5
Low CFE voltage
VLPCFE
2.1
2.5
CFE oscillating frequency
FCFE
12
15
PWM on duty offset
DPWM
-1.5
0
Torque amplifier
High CPOUT input current
ICPOUTH
－
0
Low CPOUT input current
ICPOUTL
-1
0
Current limit
Current detection voltage 1
VCL1
0.391
0.435
Current detection voltage 2
VCL2
0.432
0.480
VCL2-VCL1
ΔVCL
40
45
FG Amp
Input bias current
IBFG
-1
－
Input offset voltage
VBFG
-10
－
High output voltage
VHFG
4.5
5.0
Low output voltage
VLFG
－
1.0
Low FGS output voltage
VLFGS
－
0.1
Open loop gain
GVFG
45
54
Bias voltage
VBIASFG
2.7
3.0
Hysteresis width
VHYS
100
180
F/R
High input current
IFRL
30
60
Low input current
IFRH
-10
0
High input level
VIHFR
2.2
－
Low input level
VILFR
0
－
ACC and DEC
High ACC input current
IACCH
30
60
Low ACC input current
IACCL
-10
0
High DEC input current
IDECH
30
60
Low DEC input current
IDECL
-10
0
Accelerating current
ISS
-260
-200
Decelerating current
ISO
140
200
High ACC input level
VIHACC
2.2
－
Low ACC input level
VILACC
0
－
High DEC input level
VIHDEC
2.2
－
Low DEC input level
VILDEC
0
－
High-side output
High-side voltage
VHG
Vcc+5
Vcc+6
Pull-down resistor
RHD
70
100
Low-side output
Low-side voltage
VLG
9.5
10.5
Pull-down resistor
RLD
70
100
Booster
Boost voltage
VG
Vcc+5
Vcc+6
CP1 oscillating frequency
FCP1
35
62.5
Technical Note
Max.
20
6.5
3.0
4.1
250
4.0
2.9
18
1.5
1
－
0.479
0.528
50
1
10
VREG
1.5
0.3
－
3.3
250
90
10
VREG
0.8
90
10
90
10
-140
260
VREG
0.8
VREG
0.8
Vcc+7
130
11.5
130
Vcc+7
85
Unit
Conditions
mA
V
IVREG=-1mA
µA
V
mVpp Single-phase Hall amplitude
V
V
kHz
%
µA
µA
V
V
mV
µA
mV
V
V
V
dB
V
mV
µA
µA
V
V
µA
µA
µA
µA
µA
µA
V
V
V
V
V
kΩ
V
kΩ
V
kHz
For current sense amplifier
For current limit comparator
RFE=50kΩ, CFE=1000pF
IHFGOUT=-0.75mA
ILFGOUT=2mA
ILFGSOUT=3mA
f=3kHz
F/R=6V
F/R=0V
Reverse rotation
Forward rotation
ACC=6V
ACC=0V
DEC=6V
DEC=0V
RCP=13.5kΩ, ACC=L
RCP=13.5kΩ, DEC=L
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© 2010 ROHM Co., Ltd. All rights reserved.
2/22
2010.06 - Rev.A
BD6761FS,BD6762FV
Technical Note
BD6762FV (Unless otherwise specified, Ta=25°C, VCC=24V)
Parameter
Symbol
Min.
Limits
Typ.
Max.
10.2
25
5.5
13.5
0.6
3
3
－
3.2
1.6
19
1.15
1
10
－
1.5
0.3
－
2.75
250
2.7
0.9
2.75
－
0.3
－
0.45
0.3
27
2.5
VREG
0.8
10
-60
Unit
mA
mA
V
V
V
μA
V
mVp-p
V
V
kHz
V
μA
mV
V
V
V
dB
V
mV
V
V
V
V
V
V
V
V
msec
kHz
V
V
μA
μA
Conditions
ST/SP=OPEN
ST/SP=GND
IVREG=-1mA
Overall
5.1
7.6
Circuit current 1
ICCS
10
17
Circuit current 2
ICC
4.5
5
VREG voltage
VREG
9.5
11.5
Low voltage protection level
VUVON
0.4
0.5
Low voltage protection hysteresis level VUVHYS
Hall amp
－
1
Input bias current
IBH
0
－
In-phase input voltage range
VHAR
50
－
Input level
VINH
PWM
2.6
2.9
High CFE voltage
VCFEH
1.2
1.4
Low CFE voltage
VCFEL
13
16
CFE oscillating frequency
FCFE
0.75
0.95
REF voltage
VRFE
FG amp
-1
－
Input bias current
IFGM
-10
－
Input offset voltage
VFGOF
3.5
4.0
High output voltage
VFGOH
－
1.0
Low output voltage
VFGOL
－
0.1
Low FGS output voltage
VFGSL
45
54
Open loop gain
GFG
2.25
2.50
Bias voltage
VBFG
100
180
Hysteresis width
VFGHYS
Integration amp
1.5
2.1
Di clamp voltage 1
VDI1
0.5
0.7
Di clamp voltage 2
VDI2
2.25
2.50
Bias voltage
VBERR
Speed discriminator
High output voltage
VDOH VREG-0.3 VREG-0.1
－
0.1
Low output voltage
VDOL
PLL
High output voltage
VPOH VREG-0.45 VREG-0.15
－
0.15
Low output voltage
VPOL
Lock detection
－
0.15
Low output voltage
VLDL
Lock protection
13
20
CLK cycle for protection circuit
TLP
VCO
0.2
－
CLK input frequency range
FCLK
2.2
－
High-level CLK input voltage
VCKH
0
－
Low-level CLK input voltage
VCKL
-10
－
High-level CLK input current
ICKH
-140
-100
Low-level CLK input current
ICKL
RFE=20K, CFE=1000pF
I=-0.5mA
I=0.5mA
I=2mA
f=3kHz
INTIN=0.1mA
INTOUT＝0.1mA
INTIN=INTOUT
I=-0.1mA
I=0.1mA
I=-0.1mA
I=0.1mA
I=2mA
LP=0.1μF
Designed value (VCO alone)
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© 2010 ROHM Co., Ltd. All rights reserved.
3/22
2010.06 - Rev.A
BD6761FS,BD6762FV
Technical Note
BD6762FV (Unless otherwise specified, Ta=25°C, VCC=24 V)
Parameter
Start/Stop
High-level ST/SP input voltage
Low-level ST/SP input voltage
High-level ST/SP input current
Low-level ST/SP input current
Forward rotation/Reverse rotation
High-level FR input voltage
Low-level FR input voltage
High-level FR input current
Low-level FR input current
120°/Slope switching
High-level 120/slope input voltage
Low-level 120/slope input voltage
High-level 120/slope input current
Low-level 120/slope input current
Short brake
High-level SB input voltage
Low-level SB input voltage
High-level SB input current
Low-level SB input current
Current limit
Current detection voltage
Booster
CP1 oscillating frequency
VG step-up voltage
High-side output
High output voltage 1
High output voltage 2
Low output voltage 1
Low output voltage 2
Clamp voltage
Low-side output
High output voltage 1
High output voltage 2
Low output voltage 1
Low output voltage 2
Symbol
Min.
2.2
0
-10
-70
2.2
0
-10
-70
2.2
0
-10
-70
2.2
0
-10
-70
0.23
75
VCC+5.7
VCC+5.8
VCC+3.8
－
－
10
9.8
9.0
－
－
Limits
Typ.
－
－
0
-50
－
－
0
-50
－
－
0
-50
－
－
0
-50
0.26
125
VCC+6.7
VCC+6.8
VCC+4.8
0.1
0.5
11
10.8
10.0
0.1
0.3
Max.
VREG
0.8
10
-30
VREG
0.8
10
-30
VREG
0.8
10
-30
VREG
0.8
10
-30
0.29
175
VCC+7.7
VCC+7.8
VCC+5.8
0.3
1.0
12
11.8
11.0
0.3
0.5
Unit
Conditions
VSTH
VSTL
ISTH
ISTL
VFRH
VFRL
IFRH
IFRL
VANH
VANL
IANH
IANL
VSBH
VSBL
ISBH
ISBL
VCL
FCP1
VG
VHHG1
VHHG2
VHLG1
VHLG2
VHCL
VLHG1
VLHG2
VLLG1
VLLG2
V
V
μA
μA
V
V
μA
μA
V
V
μA
μA
V
V
μA
μA
V
kHz
V
V
V
V
V
V
V
V
V
V
STOP
START
Reverse rotation
Forward rotation
120°
120° slope
Short brake operation
Short brake clear
VG=31V
Io=-1mA
Io=5mA
Io=-5mA
Io=5mA
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© 2010 ROHM Co., Ltd. All rights reserved.
4/22
2010.06 - Rev.A
BD6761FS,BD6762FV
●Reference
Data
25
20
7.0
40.0
35.0
6.5
Technical Note
25℃
-35℃
VREG[V]
-35℃
ICC[mA]
25℃
-35℃
VG[V]
30.0
25.0
20.0
15.0
10.0
5.0
15
10
5
0
16
21
26
31
36
75℃
6.0
75℃
25℃
5.5
75℃
5.0
0
2.5
5
7.5
10
0.0
0
1
2
3
4
5
Supply voltage :VCC[V]
VREG current : IVREG[mA]
VG current : IVG[mA]
Fig.1 Circuit current (BD6761FS)
Fig. 2 VREG Voltage (BD6761FS)
Fig. 3 VG Voltage (BD6761FS)
25
20
6.0
40.0
35.0
25℃
-25℃
5.5
-25℃
30.0
75℃
VG[V]
15
10
5
0
16
21
26
VREG[V]
ICC[mA]
-25℃
5.0
25.0
20.0
15.0
75℃
25℃
4.5
75℃
25℃
10.0
5.0
4.0
31
36
0
2.5
5
7.5
10
0.0
0
1
2
3
4
5
Supply voltage :VCC[V]
VREG current : IVREG[mA]
VG current : IVG[mA]
Fig.4 Circuit current (BD6762FV)
Fig.5 VREG Voltage (BD6762FV)
Fig.6 VG Voltage (BD6762FV)
●Power
Dissipation Reduction
1200
1200
Power Dissipation : Pd
（
mW)
Power Dissipation : Pd
（
mW)
0
25
50
75
100
125
150
1100
1000
800
600
400
200
0
0
25
50
75
100
125
150
1000
950
800
600
400
200
0
Ambient Temperature: Ta(
℃
)
Ambient Temperature: Ta(
℃
)
Fig.7 BD6761FS Power Dissipation Reduction
Reduced by 7.6 mW/°C over 25°C, when mounted on a
glass epoxy board (70 mm
70 mm
1.6 mm).
Fig.8 BD6762FV Power Dissipation Reduction
Reduced by 8.8 mW/°C over 25°C, when mounted on a
glass epoxy board (70 mm
70 mm
1.6 mm)/℃で½減。
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© 2010 ROHM Co., Ltd. All rights reserved.
5/22
2010.06 - Rev.A
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