lb11817 Sanyo Semiconductor Corporation, lb11817 Datasheet - Page 9

• Manufacturer Part Number: lb11817
• Description: Three-phase Full-wave Linear Drive
• Manufacturer: Sanyo Semiconductor Corporation

Block Diagram
Note that the values of the external components shown here are reference values and are not guaranteed to be appropriate
in a given application.
pattern
FG
V
CC
0.47 F
FGO
CLK
FG+
S/S
FG-
SL
U+
U-
V+
V-
W+
W-
HB
I+
3 k
OSC
U
V
W
V
Hall amplifier
CC
I-
25 mV
Hall bias
Chip select
300/360 rpm selection
Divider
amplifier
( 250)
100 k
Timing adjustment
FG
VR
Vref
TSD
0.1 F
LB11817
TC
V
Reference
Speed discriminator
CC
voltage
50 mV
ID
0.1
VP
F
Control amplifier and
current limiter
D1 D2
Voltage boost circuit
U
V
W
V/I
0.1
0.1
GND
B2
F
F
B1
V
W
PG
FC
DO
V
RF
U
CC
1
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F
0.1 F