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THREE-PHASE POWER MOSFET CONTROLLER
Functional Block Diagram (1 of 3 outputs shown)
VREG
VBB
LCAP
Regulator
H1
H2
Undervoltage
Detect
Bootcap
Monitor
CA
CBOOT
H3
To Phase C
High
Side
Driver
High Side Protection
Logic
PWM
DIR
Turn-on
Delay
GHA
Control
Logic
RESET
SR
Gate-Source
Monitor
SA
VREG
BRAKE
Low
Side
Driver
Turn-on
Delay
Low Side Protection
MODE
TACH
GLA
Logic
To Phase B
RC Blanking
Fixed - Off
Time
RC
PGND
SENSE
FAULT
AGND
CT
RT
-
RS
+
to LCAP
REF
Bootstrap low
Vgs Low
Motor Lead Short
Invalid Hall
Undervoltage
Dead-Time
Adjust
DEAD