LB11921T Datasheet, PDF (6/18 Pages) Sanyo Semicon Device – Monolithic Digital IC Three-Phase Brushless Motor Driver

Block Diagram
LB11921T
VCC
F/R
CSD
OSC
F/R
BR
BR
S/S
INT
OUT
RES
S/S
INT
IN
VCC
INT
REF
POUT
LD
DOUT
LD
SPEED
DISCRI
FGS
FG
FILTER
FGOUT
VCC
HALL
HYS
AMP
LOGIC
1.3VREF
SPEED
PLL
CLK
WH
LOGIC
VH
PRI
UH
DRIVER
WL
VL
UL
TSD
COMP
CURR
LIM
RF
RFGND
LVSD
PWM
OSC
PWM
1/512
VCO
PLL
VCO
FIL
R
C
FIL
GND
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