LB11870 Datasheet, PDF (6/14 Pages) Sanyo Semicon Device – Three-Phase Brushless Motor Driver for Polygonal Mirror Motors

LB11870
Block Diagram and Application Circuit Example
VREG
VREG
FGFIL
FGIN–
–
FGIN+
+
CLK
CLK
FGS
LD
CLD
PD
LD
LDMASK
FG
FILTER
EI
VREG
–
EO
+
PLL
TOC
TSD
VREG
VREG
PWM
S/S
PWM
OSC
S/S
BRSEL
BRSEL
LOGIC
COMP
CONT
AMP
PEAK
HOLD
CURR
LIM
CSD
CSD
OSC
COUNT
HALL LOGIC
HALL
HYS AMP
DRIVER
FC
PH
VCC2
VCC1
VM2
Rf
VM1
OUT1
OUT2
OUT3
IN1+ IN1– IN2+ IN2– IN3+ IN3– GND1 GND2
VREG
GND3
VCC
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