Datasheet

MAX17113
Low-Cost, Multiple-Output
Power Supply for LCD TVs
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DLP
TIME
TIME
VL/REF
VIN
NEGATIVE CHARGE-PUMP
REGULATOR OUTPUT
POSITIVE CHARGE-PUMP
REGULATOR OUTPUT
EN1 HIGH, REF, AND VL OKAY. START BUCK THEN DEL1 AFTER BUCK SS.
TIME
BUCK OUTPUT
DEL1 ABOVE REF. START NEGATIVE-CHARGE PUMP.
EN1
BUCK SS DONE AND EN2 HIGH. START SUI/BOOST AND CHARGE DEL2.
VIN
UVLO
VIN > UVLO. START VL AND REF.
AVDD
REF
DEL1
REF
TIME
GON DEPENDS ON CTL
EN2
REF
DEL2
GON
TIME
DLP ABOVE REF. START
HIGH-VOLTAGE SWITCH BLOCK.
DEL2 ABOVE REF. START POSITIVE CP AND DLP.
SUI (INTERNAL SIGNAL)
BOOST
SWITCHING
SWO
TURN-ON
SWO TURNS ON AND DEL2 CHARGES WHEN EN2 IS HIGH AND BUCK SS IS DONE.
V
IN
t
SS
t
SS
t
SS
t
SS(BOOST)
GON CONNECTED TO GROUND
Figure 6. Startup Sequence