Block Diagram
67
M
DSP
DSP
DSP
DSP
DSP
DSP
DSP
DSP
DSP
DSP
DSP
DSP
DSP
ENABLE
Gain Select(SL)
Pickup Protect
ACTRST
ACTFLG
SLLIM
SL1-
SL1+
GND
SL1IN
SL2-
SL2+
SL2IN
VM2
REF
SPIN
BACK EMF
DETECTER
For SLIDE
FG
6.4MHz
STTH
GND
VM1
U
OUTPUT Ron
1.5ohm
OUTPUT Ron
1.5ohm
OUTPUT Ron
1.5ohm
OUTPUT Ron
1.5ohm
OUTPUT Ron
1.5ohm
SIN Current chopper PWM
BTL
AMP
BTL
AMP
BTL
AMP
V
W
Current
Sense
SPLIM
FOIN
FO+
FO-
GND
5VCC
TRIN
TR+
TR-
TLIN
TL+
TL-
VM3
LO-
GND
LO+
CTL
SPM
V/V converter
SLIDE1
V/V converter
SLIDE2
V/V converter
PWM
CIRCUIT
PWM
CIRCUIT
Current gain
0.44[0.88]A/V
Current gain
0.44[0.88]A/V
Frequncy
75KHz
Frequncy
75KHz
Current
Sense
Current
Sense
7-13.2V
For SPINDLE
ST
AR
TER
Frequency
150KHz
commutation
TSD
SWICHING
Commutation
PWM
CIRCUIT
V
oltage gain
X12
For/FO/TR/TIL
T
4.5-5.5V
For LOADING
4.5-5.5V
7-13.2V
V
oltage gain
X12
V
oltage gain
X12
H Bridge
Current gain
3A/V
CLK
FG(x3)
Reverse detect
OUTPUT Rom
2.3[1.8]ohm
OUTPUT Rom
2.3[1.8]ohm
EN2
OPIN-
OPOUT
SLGS
EN1
7-13.2V
M
STM
CTL
CTL
C
urrent chopper P
W
M
C
urrent chopper P
W
M