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1-826947-6

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P23
1/22
www.rohm.com
2010.06 - Rev.
A
© 2010 ROHM Co., Ltd. All rights reserved.
Motor Drivers for Printers
Three-phase Brushless
Motor Pre-drivers for Paper Feed
BD6761FS,BD6762FV
●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 Symbol
Ratings
Unit
BD6761FS BD6762FV
Applied voltage VCC 36 36 V
Applied voltage VG 36 36 V
Pin input voltage Vin VREG VREG V
Power dissipation Pd 950
(
※
1)
1100
(
※
2)
mW
Operating temperature range T
OPR
-35 ~ +75 -25 ~ +75 ℃
Storage temperature range T
STG
-40 ~ +150 -40 ~ +150 ℃
Junction temperature Tjmax 150 150 ℃
※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 BD6762FV Unit
Power supply voltage (VCC) 16~28 16~28 V
Drive type 180° 120° / 120° slope －
Servo No Yes －
No.10016EAT01
BD6761FS,BD6762FV
Technical Note
2/22
www.rohm.com
2010.06 - Rev.
A
© 2010 ROHM Co., Ltd. All rights reserved.
●Electrical Characteristics
BD6761FS (Unless otherwise specified, Ta=25°C, VCC=24.0V)
Parameter Symbol
Limits
Unit Conditions
Min. Typ. Max.
Overall
Circuit current ICC 10 15 20 mA
VREG voltage VREG 5.5 6 6.5 V IVREG=-1mA
Hall amp
Input bias current IHA － 0.7 3.0 µA
In-phase input voltage range VHAR 1.5 － 4.1 V
Input level VINH 30 － 250 mVpp Single-phase Hall amplitude
PWM
High CFE voltage VHPCFE 3.0 3.5 4.0 V
Low CFE voltage VLPCFE 2.1 2.5 2.9 V
CFE oscillating frequency FCFE 12 15 18 kHz RFE=50kΩ, CFE=1000pF
PWM on duty offset DPWM -1.5 0 1.5 %
Torque amplifier
High CPOUT input current ICPOUTH － 0 1 µA
Low CPOUT input current ICPOUTL -1 0 － µA
Current limit
Current detection voltage 1 VCL1 0.391 0.435 0.479 V For current sense amplifier
Current detection voltage 2 VCL2 0.432 0.480 0.528 V For current limit comparator
VCL2-VCL1 ΔVCL 40 45 50 mV
FG Amp
Input bias current IBFG -1 － 1 µA
Input offset voltage VBFG -10 － 10 mV
High output voltage VHFG 4.5 5.0 VREG V IHFGOUT=-0.75mA
Low output voltage VLFG － 1.0 1.5 V ILFGOUT=2mA
Low FGS output voltage VLFGS － 0.1 0.3 V ILFGSOUT=3mA
Open loop gain GVFG 45 54 － dB f=3kHz
Bias voltage VBIASFG 2.7 3.0 3.3 V
Hysteresis width VHYS 100 180 250 mV
F/R
High input current IFRL 30 60 90 µA F/R=6V
Low input current IFRH -10 0 10 µA F/R=0V
High input level VIHFR 2.2 － VREG V Reverse rotation
Low input level VILFR 0 － 0.8 V Forward rotation
ACC and DEC
High ACC input current IACCH 30 60 90 µA ACC=6V
Low ACC input current IACCL -10 0 10 µA ACC=0V
High DEC input current IDECH 30 60 90 µA DEC=6V
Low DEC input current IDECL -10 0 10 µA DEC=0V
Accelerating current ISS -260 -200 -140 µA RCP=13.5kΩ, ACC=L
Decelerating current ISO 140 200 260 µA RCP=13.5kΩ, DEC=L
High ACC input level VIHACC 2.2 － VREG V
Low ACC input level VILACC 0 － 0.8 V
High DEC input level VIHDEC 2.2 － VREG V
Low DEC input level VILDEC 0 － 0.8 V
High-side output
High-side voltage VHG Vcc+5 Vcc+6 Vcc+7 V
Pull-down resistor RHD 70 100 130 kΩ
Low-side output
Low-side voltage VLG 9.5 10.5 11.5 V
Pull-down resistor RLD 70 100 130 kΩ
Booster
Boost voltage VG Vcc+5 Vcc+6 Vcc+7 V
CP1 oscillating frequency FCP1 35 62.5 85 kHz
BD6761FS,BD6762FV
Technical Note
3/22
www.rohm.com
2010.06 - Rev.
A
© 2010 ROHM Co., Ltd. All rights reserved.
BD6762FV (Unless otherwise specified, Ta=25°C, VCC=24V)
Parameter Symbol
Limits
Unit Conditions
Min. Typ. Max.
Overall
Circuit current 1 ICCS
5.1 7.6 10.2
mA ST/SP=OPEN
Circuit current 2 ICC
10 17 25
mA ST/SP=GND
VREG voltage VREG
4.5 5 5.5
V IVREG=-1mA
Low voltage protection level VUVON
9.5 11.5 13.5
V
Low voltage protection hysteresis level VUVHYS
0.4 0.5 0.6
V
Hall amp
Input bias current IBH
－ 1 3
μA
In-phase input voltage range VHAR
0 － 3
V
Input level VINH
50 － －
mVp-p
PWM
High CFE voltage VCFEH
2.6 2.9 3.2
V
Low CFE voltage VCFEL
1.2 1.4 1.6
V
CFE oscillating frequency FCFE
13 16 19
kHz RFE=20K, CFE=1000pF
REF voltage VRFE
0.75 0.95 1.15
V
FG amp
Input bias current IFGM
-1 － 1
μA
Input offset voltage VFGOF
-10 － 10
mV
High output voltage VFGOH
3.5 4.0 －
V I=-0.5mA
Low output voltage VFGOL
－ 1.0 1.5
V I=0.5mA
Low FGS output voltage VFGSL
－ 0.1 0.3
V I=2mA
Open loop gain GFG
45 54 －
dB f=3kHz
Bias voltage VBFG
2.25 2.50 2.75
V
Hysteresis width VFGHYS
100 180 250
mV
Integration amp
Di clamp voltage 1 VDI1
1.5 2.1 2.7
V INTIN=0.1mA
Di clamp voltage 2 VDI2
0.5 0.7 0.9
V INTOUT＝0.1mA
Bias voltage VBERR
2.25 2.50 2.75
V INTIN=INTOUT
Speed discriminator
High output voltage VDOH
VREG-0.3 VREG-0.1 －
V I=-0.1mA
Low output voltage VDOL
－ 0.1 0.3
V I=0.1mA
PLL
High output voltage VPOH
VREG-0.45 VREG-0.15 －
V I=-0.1mA
Low output voltage VPOL
－ 0.15 0.45
V I=0.1mA
Lock detection
Low output voltage VLDL
－ 0.15 0.3
V I=2mA
Lock protection
CLK cycle for protection circuit TLP
13 20 27
msec LP=0.1μF
VCO
CLK input frequency range FCLK
0.2 － 2.5
kHz Designed value (VCO alone)
High-level CLK input voltage VCKH
2.2 － VREG
V
Low-level CLK input voltage VCKL
0 － 0.8
V
High-level CLK input current ICKH
-10 － 10
μA
Low-level CLK input current ICKL
-140 -100 -60
μA
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P23

1-826947-6

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Buy 1-826947-6
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TE Connectivity / AMP Connectors
Description:
Headers & Wire Housings 1X16 POS R/A TIN
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