lb11993w Sanyo Semiconductor Corporation, lb11993w Datasheet - Page 8

• Manufacturer Part Number: lb11993w
• Description: For Digital Video Camera Three-phase Brushless 3-in-1 Motor Driver
• Manufacturer: Sanyo Semiconductor Corporation

Block Diagram
STBY_D
ANGLE
FILTER
FRC_C
FRC_D
CSLP1
CSLP2
DEC1
DEC2
V CC 1
WIN1
WIN2
UIN1
UIN2
VIN1
VIN2
OSC
FC2
FC1
RS
Reference
voltage
V CC 1
Forward/rev
30k
30k
1.2V ref. voltage
bias startup ckt.
control circuit
TSD circuit
Startup
R1
R1
Forward/reverse
V CC 2
VX
200
200
2 R1
40k
DECORDER
R2
control circuit
Cylnder
bias circuits
Timing
200
R2
200
R4
R3
V CC 2
10k
detection circuit
Rotor potision
Soft switching
drive circuit
+Vf
200
VX+
LB11993W
500
Mid-point control
SBD
500
100k
1.5 R5
VX+Vf
R5
R5
R5
1.5k
VS-VX-Vf+2
R6
SBD
(VS/2)+
TSD
R6
R5
75k
Upper/lower
amplitude limiter
V CC 1
R5
R5
200
200
Hall power supply voltage
B
B
B
bias startup circuit
V CC 1
1.2V ref. voltage
output circuit
V CC 1
Capstan
bias circuits
V CC 1
30k
V CC 1
GND
RLO1
RLM1
RLP1
RLO2
RLM2
AMP1OUT
AMP1IN-
AMP1IN+
AMP2OUT
AMP2IN-
AMP2IN+
VS_C
UOUT_C
VOUT_C
WOUT_C
RF_C
STBY_C
VH+
VH-
FGOUT_C
FGIN-
FGIN+
V CC 2
COM
WIN
VIN
UIN
VS_D
UOUT_D
VOUT_D
WOUT_D
RF_D
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