SCM1106M Datasheet, PDF (6/10 Pages) Allegro MicroSystems – High Voltage 3 Phase Motor Driver

SCM1106M
High Voltage 3 Phase Motor Driver
Timing Diagrams
High-Side Driver Input/Output
Hside- Driver I/O Timing Diagrams
HIN
LIN
VB- HS
HO
UVHL
UVHH
*Start from positive edge
after UVLO release _.
LO
FO
*V_CC = 15 V
* No output at H-side UVLO
Low-Side Driver Input/Output
Lside- Driver I/O Timing Diagrams
HIN
LIN
VCC
HO
UVLL
UVLH
*Start from positive edge
after UVLO release
LO
FO
* VB- HS =15 V
Shoot-Through Prevention
Shoot Through Prevention
HIN
LIN
VCC
HO
LO
FO
*V_CC ,VB- HS = 15 V
*While both HIN and LIN are in high state
HO and LO turn off and FO signals out
Overcurrent Protection
Overcurrent Protection
LIN
VB- HS
VCC
IGBT turns off softly after
overcurrent condition is detected
LS
BlankingTime
(2 μs typ.)
FO
CFO
V_rc
(3.5 V typ.)
OCP Assist Timer
(2 μs min.)
The slope depends on
C_FO capacitance
* ^{Off operation of all phases can be done by wired OR system}
with the three FO pins short circuited
Allegro MicroSystems, Inc.
6
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 [phone]
www.allegromicro.com