DCM300P120x400A40
High Level Functional State Diagram
Conditions that cause state transitions are shown along arrows. Sub-sequence activities listed inside the state bubbles.
Application of
VIN
VIN > VIN-INIT
INITIALIZATION
SEQUENCE
NON LATCHED
FAULT
EN = False
MIN-OFF delay
t
tOFF
t
INIT delay
Powertrain: Stopped
FT = True
Powertrain: Stopped
FT = True
EN = False
tOFF-MIN delay
VIN > VIN-UVLO+ and
not Over-temp
TR mode latched
EN = True and
No Faults
tON delay
SOFT START
RUNNING
STANDBY
VOUT Ramp Up
ss delay
tSS Expiry
Regulates VOUT
t
Powertrain: Stopped
FT = True
EN = False
Powertrain: Active
FT = False
Powertrain: Active
FT = False
tOFF delay
REINITIALIZATION
SEQUENCE
t
INIT delay
Powertrain: Stopped
FT = True
NON LATCHED
FAULT
tFAULT
Fault Removed
Powertrain: Stopped
FT = True
LATCHED
FAULT
Powertrain: Stopped
FT = True
EN = False
DCM™ DC-DC Converter
Rev 1.2
vicorpower.com
800 927.9474
Page 9 of 25
07/2015
VICOR [ VICOR CORPORATION ]
