LB11867RV Datasheet, PDF (4/9 Pages) Sanyo Semicon Device – Variable Speed Single-phase Full-wave Pre-driver

Block Diagram
CT
0.47 to 1 F
LB11867RV
Discharge circuit
Thermal shat down
RD
VCC
5VREG
Discharge pulse
5VREG
HALL _IN+
IN-
Controller
Osillaton
S-S RMI VTH CPWM
SENSE
OUT1N
OUT1P
OUT2N
OUT2P
SGND
Truth table
(1) Drive lock CPWM=H VTH, RMI, S-S=L
IN-
IN+
CT
OUT1P
OUT1N
OUT2P
OUT2N
RD
H
L
L
L
OFF
H
L
L
L
H
OFF
H
L
L
L
H
L
OFF
L
OFF
H
OFF
H
L
H
OFF
H
OFF
L
OFF
(2) Speed control CT, S-S=L
VTH, RMI
CPWM
IN-
IN+
H
L
L
H
L
H
H
L
H
L
L
H
For VTH, RMI, and S-S pins, refer to the timing chart.
OUT1P
L
OFF
OFF
OFF
OUT1N
L
H
L
H
OUT2P
OFF
L
OFF
OFF
OUT2N
H
L
H
L
Mode
OUT1 → 2 drive
OUT2 → 1 drive
Lock protection
Mode
OUT1 → 2 drive
OUT2 → 1 drive
Regeneration mode
No.A1534-4/9