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부품번호 | BD6761FS 기능 |
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기능 | Three-phase Brushless Motor Pre-drivers | ||
제조업체 | ROHM Semiconductor | ||
로고 | |||
전체 23 페이지수
www.DataSheet4U.com
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
Symbol
Ratings
BD6761FS
BD6762FV
Applied voltage
VCC
36
36
Applied voltage
VG 36
36
Pin input voltage
Power dissipation
Vin VREG
VREG
Pd 950(※1) 1100(※2)
Operating temperature range
TOPR
-35 ~ +75
-25 ~ +75
Storage temperature range
TSTG
-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).
Unit
V
V
V
mW
℃
℃
℃
●Line up Matrix
Power supply voltage (VCC)
Drive type
Servo
BD6761FS
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
Technical Note
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BD6762FV (Unless otherwise specified, Ta=25°C, VCC=24 V)
Parameter
Symbol
Min.
Limits
Typ.
Max.
Unit
Conditions
Start/Stop
High-level ST/SP input voltage
VSTH
2.2
-
VREG
V STOP
Low-level ST/SP input voltage
VSTL
0
- 0.8 V START
High-level ST/SP input current
ISTH
-10
0
10 μA
Low-level ST/SP input current
ISTL
-70
-50
-30 μA
Forward rotation/Reverse rotation
High-level FR input voltage
VFRH
2.2
-
VREG
V Reverse rotation
Low-level FR input voltage
VFRL
0
- 0.8 V Forward rotation
High-level FR input current
IFRH
-10
0
10 μA
Low-level FR input current
IFRL
-70
-50
-30 μA
120°/Slope switching
High-level 120/slope input voltage VANH
2.2
-
VREG
V 120°
Low-level 120/slope input voltage VANL
0
- 0.8 V 120° slope
High-level 120/slope input current IANH
-10
0
10 μA
Low-level 120/slope input current
IANL
-70
-50
-30 μA
Short brake
High-level SB input voltage
VSBH
2.2
-
VREG
V Short brake operation
Low-level SB input voltage
VSBL
0
- 0.8 V Short brake clear
High-level SB input current
ISBH
-10
0
10 μA
Low-level SB input current
ISBL
-70
-50
-30 μA
Current limit
Current detection voltage
VCL 0.23 0.26 0.29 V
Booster
CP1 oscillating frequency
FCP1
75
125 175 kHz
VG step-up voltage
VG VCC+5.7 VCC+6.7 VCC+7.7 V
High-side output
High output voltage 1
VHHG1 VCC+5.8 VCC+6.8 VCC+7.8 V VG=31V
High output voltage 2
VHHG2 VCC+3.8 VCC+4.8 VCC+5.8 V Io=-1mA
Low output voltage 1
VHLG1
-
0.1 0.3 V
Low output voltage 2
VHLG2
-
0.5 1.0 V Io=5mA
Clamp voltage
VHCL
10
11
12 V
Low-side output
High output voltage 1
VLHG1
9.8
10.8 11.8 V
High output voltage 2
VLHG2
9.0
10.0 11.0 V Io=-5mA
Low output voltage 1
VLLG1
-
0.1 0.3 V
Low output voltage 2
VLLG2
-
0.3 0.5 V Io=5mA
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© 2010 ROHM Co., Ltd. All rights reserved.
4/22
2010.06 - Rev.A
4페이지 BD6761FS,BD6762FV
Technical Note
2)BD6762FV
⑩
RF voltage smoothing low
pass filter
See P. 18/22.
0.1Ω
⑧
Resistor for setting the current
limit
See P. 18/22.
0.1µF
③
Capacitor for the protection
between the output FET drain
and source
See P. 18/22.
0.1µF
M
①
RNF
470pF
1kΩ
MOS
FET
VCO
MOS
FET
VCO
GND
RF
UHG
U
ULG
VHG
V
VLG
PRE
DRIVER
LOGIC
0.1µF
MOS FET
⑮
Output FET gate voltage
stabilization resistor
See P. 19/22.
⑦
Capacitor for preventing
VREG oscillation
See P. 18/22.
⑤
PWM frequency external
constant
See P. 18/22.
⑥
For setting Hall input level
See P. 18/22.
⑨
Capacitor for Hall noise
elimination
See P. 18/22.
⑥
For setting Hall input level
See P. 18/22.
MOS
FET
VCO
WHG
W
WLG
(0.01µF~0.1µF)
0.1µF
VREG
1000pF (500pF ~ 2000pF)
CFE
RFE
20k (20kΩ ~ 100kΩ)
REGURATOR
TRIANGULAR
OSCILLATOR
VCC
R1 5k (2kΩ ~ 10kΩ)
0.01µF
HU
HU+
HU-
0.01µF
HV
HV+
HV-
HALL
COMP
0.01µF
HW
HW+
HW-
R2 2k (1kΩ ~ 5kΩ)
CLK
OSCILLATOR
BOOSTER
LD
LP
DAC3
VELOCITY
DISCRIMINATOR
PLL
VCO
PHASE
COMPARISON
DIVIDER
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④
Capacitor for setting VG
current capacity
See P. 18/22.
CP1
CP2
VG
0.1µF
VCC
0.01µF (0.01µF ~ 0.1µF)
⑬
10µF Capacitor for ⑫VCC pin
noise elimination
See P. 19/22.
1kΩ ~ 100kΩ
LD
Speed lock
detection pull-up
10kΩ resistor
C7 0.22µF (0.1µF ~ 1µF)
LP
⑰
INTOUT
R6 220kΩ
INTIN
C5 0.047µF
C6 0.47µF
Capacitor for the
motor lock detection
time
See P. 19/22.
R4
20kΩ
DOUT
R5 ⑱
1MΩ Integration amplifier
external constant
See P. 19/22.
POUT
LPF
C8 0.33µF
⑲
LPF external constant
See P. 19/22.
C9 0.33µF
CLKIN
R7 2kΩ
1kΩ ~ 100kΩ
FGSOUT
10kΩ
FGSOUT pull-up resistor
FGOUT
R2
390kΩ
C2
150pF
FGIN-
FGIN+
4.7kΩ 0.1µF
R1 C1
1µF
120/SL
⑪
Resistor for setting FG
SB
amplifier gain and the
capacitor for the filter
See P. 18/22.
FR
ST/SP
Fig.10 BD6762FV Block Diagram
BD6762FV pin Function
No. Pin name
Function
No. Pin name
Function
1 GND GND pin
21 ST/SP Start/Stop pin
2 RF Motor current detection pin
22 FR Forward/reverse rotation switching pin
3 UHG U-phase high-side FET gate pin
23 SB Short brake pin
4
U
Protection pin for U-phase high-side
FET GS breakdown voltage
24 120/SL 120°/slope switching pin
5 ULG U-phase low-side FET gate pin
25 FGIN+ FG amplifier input + pin
6 VHG V-phase high-side FET gate pin
26 FGIN- FG amplifier input - pin
7
V
Protection pin for V-phase high-side
FET GS breakdown voltage
27 FGOUT FG amplifier output pin
8 VLG V-phase low-side FET gate pin
28 FGSOUT FGS output pin
9 WHG W-phase high-side FET gate pin
29 CLKIN Reference CLK input pin
10
W
Protection pin for W-phase high side
FET GS breakdown voltage
30 LPF VCO system loop filter connection pin
11 WLG W-phase low-side FET gate pin
31 POUT PLL output pin
12 VREG Internal power supply 5 V output pin
32 DOUT Speed discriminator output pin
13 CFE PWM frequency control pin
33 INTIN Integration amplifier input pin
14 RFE CEF charge/discharge current control pin 34 INTOUT Integration amplifier output pin
15 HU+ Hall signal input pin
35 LP Motor lock protection time setting pin
16 HU- Hall signal input pin
36 LD Motor rotation number lock detection pin
17 HV+ Hall signal input pin
37 VCC VCC pin
18 HV- Hall signal input pin
38 VG Step-up voltage output pin
19 HW+ Hall signal input pin
39 CP2 Capacitor connection pin (to CP1)
20 HW- Hall signal input pin
40 CP1 Capacitor connection pin (to CP2)
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© 2010 ROHM Co., Ltd. All rights reserved.
7/22
2010.06 - Rev.A
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부품번호 | 상세설명 및 기능 | 제조사 |
BD6761FS | Three-phase Brushless Motor Pre-drivers | ROHM Semiconductor |
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