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Número de pieza | BD6762FV | |
Descripción | Three-phase Brushless Motor Pre-drivers | |
Fabricantes | ROHM Semiconductor | |
Logotipo | ||
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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
1 page BD6761FS,BD6762FV
●Reference Data
25
20 25℃ -35℃
15
75℃
10
5
0
16
21 26 31
Supply voltage :VCC[V]
36
Fig.1 Circuit current (BD6761FS)
7.0
6.5
25℃ -35℃
6.0
75℃
5.5
5.0
0
2.5 5 7.5 10
VREG current : IVREG[mA]
Fig. 2 VREG Voltage (BD6761FS)
Technical Note
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40.0
35.0
30.0
25.0
20.0
15.0
10.0
5.0
0.0
0
-35℃
75℃
25℃
12 34
VG current : IVG[mA]
5
Fig. 3 VG Voltage (BD6761FS)
25
25℃ -25℃
20
15
75℃
10
5
0
16
21 26 31
Supply voltage :VCC[V]
36
6.0
5.5
-25℃
5.0
4.5
75℃
25℃
4.0
0
2.5 5 7.5 10
VREG current : IVREG[mA]
Fig.4 Circuit current (BD6762FV) Fig.5 VREG Voltage (BD6762FV)
40.0
35.0
30.0
25.0
20.0
15.0
10.0
5.0
0.0
0
-25℃
75℃
25℃
12 34
VG current : IVG[mA]
5
Fig.6 VG Voltage (BD6762FV)
●Power Dissipation Reduction
1200
1000
950
800
600
400
200
0
0 25 50 75 100 125 150
Ambient Temperature: Ta(℃)
1200
1100
1000
800
600
400
200
0
0 25 50 75 100 125 150
Ambient Temperature: Ta(℃)
Fig.7 BD6761FS Power Dissipation Reduction
Fig.8 BD6762FV Power Dissipation Reduction
Reduced by 7.6 mW/°C over 25°C, when mounted on a Reduced by 8.8 mW/°C over 25°C, when mounted on a
glass epoxy board (70 mm 70 mm 1.6 mm).
glass epoxy board (70 mm 70 mm 1.6 mm)/℃で軽減。
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
5/22
2010.06 - Rev.A
5 Page BD6761FS,BD6762FV
●Timing Chart
1) BD6761FS
Hall signal
HU+
HHVU+-
HHWV--
SINU
HW+
SINV
SINW
Forward rotation
UHG
ULG
VHG
VLG
WHG
WLG
Reverse rotation
UHG
ULG
VHG
VLG
WHG
WLG
Triangular waveform amplitude
Fig.11 BD6761FS I/O Timing Chart
SINU, SINV, and SINW are the internal IC signals synthesized by the Hall amplifier.
2) BD6762FV
Hall signal
HU+
HU-
HV-
HV+
HW-
HW+
120°
UH
UL
VH
VL
WH
WL
120° slope
UH
UL
VH
VL
WH
WL
Fig.12 BD6762FV I/O Timing Chart
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
11/22
Technical Note
www.DataSheet4U.com
2010.06 - Rev.A
11 Page |
Páginas | Total 23 Páginas | |
PDF Descargar | [ Datasheet BD6762FV.PDF ] |
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