3-PHASE CAPSTAN MOTOR DRIVER KA8329B monolithic integrated circui
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KA8329B
3-PHASE CAPSTAN MOTOR DRIVER
KA8329B monolithic integrated circuit, suitable 3-phase capstan motor driver system.
32-SDIPH-400
FEATURES
3-phase, full-wave, linear BLDC motor driver with hall sensors Built-in TSD(Thermal Shutdown) circuit Built-in torque ripple control circuit Built-in output current limiter Motor speed control High output current Built-in amplifier with sinusoidal waveforms Built-in hall amplifier Built-in circuit
ORDERING INFORMATION
Device Package Operating Temperature
KA8329B 32-SDIPH-400
BLOCK DIAGRAM
1.8K CW&CCW 2.5V 1.8K 1.25V VCC1
PM-97-D012 April 1997.
KA8329B
CONFIGURATION
FGOUT2
F/RCTL
FGOUT1
TRCTL
FGIN2
FGIN3
FGIN1
VREF
KA8329B
GOUT
UOUT
VOUT
WOUT
VCC2
DESCRIPTION
Symbol Description Symbol VCC1 ILIM VCTL VREF FGIN1 FGIN2 FGIN3 FGOUT1 FGOUT2 TRCTL F/RCTL Description Supply voltage(signal) Phase stabilization Current limitation Voltage control Voltage control reference AMP1 input1 Ground(signal) Ground(signal) Ground(signal) Ground(signal) AMP1 input2 AMP2 input1 AMP2 output AMP1 output Torque ripple control Forward reverse control
GOUT UOUT VOUT WOUT VCC2
Hall Signal Input Hall Signal Input Hall Signal Input Hall Signal Input Hall Signal Input Hall Signal Input
Ground(Signal) Ground(Signal) Ground(Signal) Ground(Signal) Output Current Detection Ground(Power) Phase Output Phase Output Phase Output Supply Voltage(Power)
PM-97-D012 April 1997.
VCC1
VCTL
ILIM
KA8329B
ABSOLUTE MAXIMUM RATING
Characteristics Supply Voltage(Signal) Supply Voltage(Power) Output Current Power Dissipation Thermal Resistance Junction Temperature Operating Temperature Storage Temperature Symbol VCC1 VCC2 IOUT TOPR TSTG
Value Unit A/phase Remark
60.2
Heat Sink Heat Sink
POWER DISSIPATION CURVE
Power dissipation
fini
without eat-sink
Ambient temperature,
PM-97-D012 April 1997.
KA8329B
(Ta=25 VCC1=5V, VCC2=16V, otherwise specified)
ELECTRICAL CHARACTERISTICS
Characteristics Quiescent Input Current Hall Input Voltage Range Power Saturation Voltage (Outflow Current) Power Saturation Voltage (Inflow Current) ILIM Input Voltage Range ILIM Input Current ILIM Current Limit Level ILIM Quiescent Output Current ILIM Limit Offset Voltage VCTL Input Voltage Range VCTL Input Current VCTL Control Gain VCTL Quiescent Output Current VCTL Input off-Set Voltage Foward Rotation Mode Reverse Rotation Mode VREF Input Voltage Range FGAMP Internal Reference Voltage FGAMP Input Voltage Range FGAMP1 Gain FGAMP2 Gain
Symbol ICC1 VINS VSAT1
Test Conditions VF/R=0V mVo-p VCC2=13V, Iout=0.8A/Phase
Unit
13,14,15 VSAT2 VLIM 1113,14,15 VCTL=3.5V,VLIM=3V VCTL=3.5V,VLIM=Adjustable VCC1 2,000 VCC2=13V, Iout=0.8A/Phase
0.61 0.67 0.73
13,14,15 VCTL VLIM=0V VREF=2.5V
1.17 1.25 1.33 VCC1
VCTL=3V,VLIM=5V VLIM=5V,VCTL=Adjustable
2,000
13,14,15 VREF VCTL=0V VCTL= Adjustable VCC12.0 FGIN FGAV1 FGAV2 27,28 28-29 27-30 28=10kHz,60mVp-p, Sinusoidal Waveforms 27=10kHz,60mVp-p, Sinusoidal Waveforms 22=2.5V Times Times
PM-97-D012 April 1997.
KA8329B
APPLICATION INFORMATION
HALL INPUT
input signal Hall Sensor requires more amplitude than 100mVo-p. operating voltage level Hall Sensor from 1.2V~VCC1-0.8V.
VCC1
More than 1.7V More than 100mVo-p
More than 1.3V
OUTPUT CURRENT DETECTION usually connected with Rs(approx. motor current converted voltage provided feedback amplifier. connected circuit with ground side
VCC2
UOUT VOUT WOUT
PM-97-D012 April 1997.
KA8329B
MOTOR SPEED CONTROL(INPUT CURRENT LIMITATION)
maxmum output current limitted voltage follows. motor speed controlled output current. case no-use, short-circuit with VCC1. GML=
LIM=(Io2-Io1)/(VLIM2-VLIM1),
where VLIM1=1.45V Output current=Io1 VLIM2=1.55V Output current=Io2
Output Current (Max) 0.67
1.25V
VLIM(Pin
MOTOR SPEED CONTROL(INPUT VOLTAGE CONTROL control motor speed possible conditions VCTL(Pin control gain approx. follows. VCTL=(Io2-Io1)/(VCTL2-VCTL1), where VREF=2.5V, VCTL1=2.6V Output Current=Io1 VREF=2.5V, VCTL2=2.7V Output Current=Io2
VCC1 Output Current (Max)
GOUT
VREF
VCTL(Pin
VOLTAGE CONTROL REFERENCE
input voltage range
PM-97-D012 April 1997.
KA8329B
TORQUE RIPPLE CONTROL
VCC1
motor torque ripple controlled voltege follows.
Normal Mode Control Mode
FORWARD REVERSE ROTATION CONTROL
1.25V
Forward mode Reverse mode
These amplifiers inversion type. amplifier built both reference voltage(approx. 2.5V) gain setting resistors. voltage gain approx. times.
1.8K
1.8K 2.5V
PHASE STABILIZATION
inserted capacitor between This capacitor, approx. phase stabilization circuit.
PM-97-D012 April 1997.
KA8329B
TEST CIRCUIT
R3=10K R2=1K R1=10K
SW15 SW11 FGOUT2 FGOUT1 SW14 R10=1K
FGIN2
FGIN1
KA8329B
R9=1K R8=1K
R4=0.5(20W)
FGCTL (VCTL) SW16 VC
R5=R6=R7=5(20W) SW10 C1=C2=C3 ICC1 VCC2=16V
SW13 VLIM SW12
ICC2
0.01
VCC1=5V
PM-97-D012 April 1997.
KA8329B
TIMMING CHART
Pin32 Mode (CW): High Pin32 mode (CCW):
PIN1( PIN2(
PIN3( PIN4(
PIN5( PIN6(
PIN14(U)
OUTFLOW
PIN15(V)
INFLOW
PIN16(W)
PM-97-D012 April 1997.
KA8329B
APPLICATION CIRCUIT
VCC1=5V (SIGNAL) 180K
7.5K
FGAMP OUTPUT2
FGAMP OUTPUT1
180K
FGAMP INPUT3
FGAMP INPUT2
KA8329B
0.5K
FGAMP INPUT1
0.1uF 0.1uF 0.1uF VCC2=16V (POWER) 10uF
VCTL
ILIM
VCC1=5V (SIGNAL)
PM-97-D012 April 1997.
KA8329B
PACKAGE DIMENSIONS (Unit
32-SDIPH-400
PM-97-D012 April 1997.
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