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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+ HuHv+ HvHw+ 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+ FGFunction 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+ HuHv+ HvHw+ HwFunction 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=25C)
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 IFGout VFGout Pt K 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=25C, 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 A 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 A Differential voltage of Hu+/Hu-, Hv+/Hv-, Hw+/HwHu+ = Hu- , Hv+ = Hv- , Hw+ = Hw-
Rev.1.0, Sep.19.2003, page 4 of 8
M56750FP
Electrical characteristics
(Unless otherwise noted Ta=25C, 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 A A nA V A A V A A V nA V A V A 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 K 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
A A 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
M56750FP
Application Circuit
Power Supply 24v Vcc 7~12,25~30 1 U 36
GND
24 Hu 23 22 21 20 Hw Hu+ HuHv+ HvHw+
Hv
120 MATRIX
V 35
W 34 4
19 HwHD 31 2 CI 0.5 ACC 5 6 DEC ICP CHARGE PUMP I/I Converter VLIM Rs RNF 32 33
HALL DRIVE
I/I Converter
BIAS TSD
PS
Power save [HI : Power save] [Lo or Open : ON]
RCP 13
CPOUT 14
VCTL 15 16
+ FGOUT
FG18 17
FG+
FG
Rev.1.0, Sep.19.2003, page 6 of 8
M56750FP The timing chart of motor output current / Hall-sensor signal input
Hall sensors input
Hu+ HuHvHv+ Hw+ Hw-
Output current
Source
U
Sink
Source
V
Sink
Source
W
Sink
0
180
360
540
720
Motor rotation angle (C) * Above waveforms show a timing of Hall sensors and output currents. And, this waveforms do not show the actual waveforms of a motor function.
Rev.1.0, Sep.19.2003, page 7 of 8
M56750FP
36P2R-D
JEDEC Code -- e b2
19
MMP
Weight(g) 0.53 Lead Mater ial Cu Allo y
Plastic 36pin 450mil SSOP
EIAJ P a c kage Code SSOP36-P-450-0.80
Package Dimensions
36
HE
E
L1
L
Rev.1.0, Sep.19.2003, page 8 of 8
e1
F
Recommended Mount Pad
Symbol
18
1
A
G
D
A2 y
b
A1
e
A A1 A2 b c D E e HE L L1 z Z1 y c
z Detail G Detail F
Z1
b2 e1 I2
Dimension in Millimeters Min Nom Max -- -- 2.35 0 0.1 0.2 -- 2.05 -- 0.3 0.35 0.45 0.18 0.2 0.25 14.8 15.0 15.2 8.2 8.4 8.6 -- 0.8 -- 11.63 11.93 12.23 0.3 0.5 0.7 -- 1.765 -- -- 0.7 -- -- 0.85 -- -- -- 0.15 0 8 -- 0.5 -- -- -- 11.43 -- 1.27 -- --
I2
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Colophon 1.0

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