M56750FP
3-PHASE BRUSHLESS MOTOR DRIVER
REJ03F0049-0100Z
Rev.1.0
Sep.19.2003
Outline
M56750FP is a 3 phase brushless motor driver that include charge pump circuit, which is inputted a acceleration and
deceleration pulse signal from a external discriminator circuit. The pulse width is converted to the voltage by the above
charge pump circuit and a external filter. And, the current in proportion to this voltage is outputted.
Features
•
Wide voltage range: From 12V to 24V.
•
High current capability : 1.0A
•
Inclusion of current limit circuit.
•
Inclusion of charge pump circuit.
•
Inclusion of Hall-sensors drive circuit.
(This function is linked with a power save function.)
•
Inclusion of power save function.
•
Inclusion FG amplifier.
•
Inclusion of Thermal Shut Down (TSD) circuit.
Application
Scanner motor of Laser Beam Printer.
Rev.1.0, Sep.19.2003, page 1 of 8
M56750FP
Pin Configuration
Vcc
CI
TEST
PS
ACC
DEC
1
2
3
4
5
6
36
35
34
33
32
31
U
V
W
RNF
RS
HD
M56750FP
7
8
9
10
11
12
30
29
28
27
26
25
24
23
22
21
20
19
GND
GND
RCP
CPOUT
VCTL
FGOUT
FG+
FG-
13
14
15
16
17
18
Hu+
Hu-
Hv+
Hv-
Hw+
Hw-
36pin SSOP package
Block Diagram
U
36
Vcc
1
HALL
DRIVER
BIAS
VLIM
V
35
W
34
RS
32
PS
4
HD
31
RNF
33
TEST
3
ACC DEC
6
5
7 to 12, 25 to 30
120
˚
MATRIX
I/I
Converte
Rev.1.0, Sep.19.2003, page 2 of 8
GND
TSD
V/V
Converte
CHARGE
PUMP
+
24
-
23
+
22
-
21
+
20
-
19
2
CI
16
FG
17
FG+
18
FG-
15
VCTL
14
CPOUT
13
RCP
Hu+ Hu-
Hv+ Hv-
Hw+ Hw-
FGOUT
M56750FP
Pin Description
Terminal
1
2
3
4
5
6
7 to 12
13
14
15
16
17
18
Symbol
VCC
CI
TEST
PS
ACC
DEC
GND
RCP
CPOUT
VCTL
FGOUT
FG+
FG-
Function
Power Supply
Phase compensation
Test terminal
Power save
Acceleration signal input
Deceleration signal input
GND
Setting of charge pump output current.
Charge pump circuit output.
Speed control signal input.
FG amp. output.
FG amp. non-inverted input (+)
FG amp. inverted input (-)
Terminal
36
35
34
33
32
31
25 to 30
24
23
22
21
20
19
Symbol
U
V
W
RS
RNF
HD
GND
Hu+
Hu-
Hv+
Hv-
Hw+
Hw-
Function
U phase output
V phase output
W phase output
Current sensing output
Current sensing
Hall-elements drive
GND
Hu+ sensor input
Hu- sensor input
Hv+ sensor input
Hv- sensor input
Hw+ sensor input
Hw- sensor input
Absolute Maximum Ratings
(unless otherwise noted Ta=25°C)
Parameter
Power Supply
Output current
Hall sensor Amp.
differential input range
Input voltage of input terminal
Output current of HD terminal
Maximum input voltage of HD
Output current of FGout terminal
Maximum input voltage of FG
output.
Power dissipation
Thermal derating
Junction temperature
Operating temperature
Storage temperature
Symbol
Vcc
Io
VHA1
Vi
IHD
VHD
I
FG
out
V
FG
out
Pt
K
θ
Tj
Topr
Tstg
Limit
28
1.0
4.5
7.0
20
28
5.0
7.0
4.5
27.8
150
−20
to 75
−40
to 150
Unit
V
A
V
V
mA
V
mA
V
W
°C/W
°C
°C
°C
ACC, DEC,
PS, VCTL terminals.
Under output Tr. OFF condition.
(Open collector output).
Under output Tr. OFF condition.
(Open collector output).
With infinite heatsink
With infinite heatsink
Condition
Rev.1.0, Sep.19.2003, page 3 of 8
M56750FP
Thermal Derating
5.0
4.5
Power dissipation Pdp (W)
With infinite heatsink
4.0
Without heatsink
3.0
2.0
1.2
1.0
0
25
50
75
100
125
Ambient temperature (
˚C
)
150
Recommended Conditions
Limits
Parameter
Power supply
Motor drive current
Symbol
Vcc
Io
Min.
Typ.
24
0.7
Max.
Unit
V
A
Electrical characteristics
(Unless otherwise noted Ta=25°C, Vcc=24V)
Limits
Parameter
Supply current (1)
Supply current (2)
Saturation voltage
Control Gain
Symbol
ICCL
ICC
VSAT
GIO
Min.
0.30
Typ.
300
7.3
2.3
0.39
Max.
600
14
3.2
0.50
Unit
µA
mA
V
V/V
Measurement conditions
Under power save function mode
(PS=5.0V) condition.
VCTL=CPOUT
DEC=Lo, ACC=Hi
Under motor stop condition.
Top and bottom at load current
500mA.
of VCTL at VCTL(L) = 1.6V,
VCTL(H) = 2.0 V
Differential voltage of RNF /
Differential voltage
The voltage that appears on the RNF
terminal
at VCTL=5.0V condition.
Reference voltage of
current limit
Common mode input
voltage range of Hall amp.
Differential input voltage of
Hall amp.
Input current of Hall
sensor amp.
VLIM
0.329
0.366
0.403
V
VHA2
VHA3
IHA
1.5
50
0.5
VCC−2
4.0
V
mVpp
µA
Differential voltage of Hu+/Hu-,
Hv+/Hv-, Hw+/Hw-
Hu+ = Hu- , Hv+ = Hv- , Hw+ = Hw-
Rev.1.0, Sep.19.2003, page 4 of 8
M56750FP
Electrical characteristics
(Unless otherwise noted Ta=25°C, Vcc=24V)
Limits
Parameter
Acceleration current
Deceleration current
Charge pump output
current
Charge pump output
voltage range
Input current of
ACC
(1)
Input current of
ACC
(1)
ACC
Threshold voltage
Input current of
DEC
(1)
Input current of
DEC
(1)
ACC
Threshold voltage
Input current of VCTL
Saturation voltage of HD
terminal
Shut off current of HD
terminal
Saturation voltage of
FGOUT terminal
Shut off current of
FGOUT terminal
Input current of PS
terminal (H)
Input current of PS
terminal (L)
PS Threshold voltage
Symbol
ISS
ISD
IZ
VCPOUT
IACCH
IACCL
VTACC
IDECH
IDECL
VTDEC
ICTL
VSHD
IBVHD
VFGL
IBVFG
Min.
−240
+160
−50
1.2
−1
−50
0.8
−50
0.8
−60
0.6
Typ.
−200
+200
0
0
−10
1.4
250
−10
1.4
−10
0.9
0
0
Max.
−160
+240
+50
2.8
1
2.0
500
2.0
+40
1.2
+10
0.5
+10
Unit
µA
µA
nA
V
µA
µA
V
µA
µA
V
nA
V
µA
V
µA
Measurement conditions
ACC=LO, DEC=HI
RCP=13 Kohm at CPOUT=1.6V
ACC=HI, DEC=LO
RCP=13 Kohm at CPOUT=1.6V
ACC=DEC=HI
or LO
at CPOUT=1.6V
RCP=13 KΩ
ACC
=5.0V
ACC
=0V
ACC
=5.0V
ACC
=0V
VCTL = 1.6 V
Under PS terminal Open or Low and
load current 20mA condition.
Under PS terminal High and 2.4V
input condition.
(FG-) - (FG+) =100mV and load
current 5.0mA.
(FG-) - (FG+) =100mV and load
current 5.0mA and 5.0V input
condition.
5.0V input to PS terminal
0V input to PS terminal
IPSH
IPSL
VTPS
−10
0.8
170
0
1.4
300
+10
2.0
µA
µA
V
Electrical characteristics
Design value
Parameter
Operational temperature of
thermal shut down.
Hysteresis of thermal TSD
(shut down function).
Symbol
TON
THYS
Min.
150
20
Typ.
165
35
Max.
180
50
Unit
°C
°C
Differential temperature of TSD
function-comeback.
Remark
Rev.1.0, Sep.19.2003, page 5 of 8
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