lb1876 Sanyo Semiconductor Corporation, lb1876 Datasheet - Page 6

• Manufacturer Part Number: lb1876
• Description: Three-phase Brushless Motor Driver For Polygon Mirror Motors
• Manufacturer: Sanyo Semiconductor Corporation

Equivalent Circuit Block Diagram and Sample Application Circuit
BRSEL
FGI N-
FGI N+
PWM
VREG
CLK
CSD
S/S
IN1+ IN1-
BRSEL
CLK
PWM
OSC
OSC
S/S
SD
FGFIL
+
–
IN2+ IN2- IN3+
HYS AMP
COUNT
LOGIC
HA LL
PLL
FGS
FI LTER
FG
VREG
HALL LOGIC
IN3-
LD
GND1
VREG
LB1876
LD
GND2
COMP
LDSEL
LDSEL
TSD
VREG
DRI VER
HOLD
PEAK
CURR
LIM
GND3
CLD
–
+
CONT
AMP
VREG
EO
PD
EI
FC
PH
VM2
VM1
TOC
VREG
V CC
OUT1
OUT2
OU
Top view
T3
Rf
No. 6201-6/14
V CC