Rainbow-electronics MAX1531 Manual de usuario Pagina 17

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MAX1530/MAX1531
Multiple-Output Power-Supply Controllers for
LCD Monitors
______________________________________________________________________________________ 17
MAX1531
OSC REF
SLOPECLOCK
VL
TIMER
VLOK
V
REF
SEQUENCE
0.9VREF
V
REF
0.9VREF
V
REF
SOFT-
START
0.9VREF
V
REF
0.9VREF
V
REF
SOFT-
START
SOFT-
START
SOFT-
START
SOFT-
START
400mV
V
REF
THERMAL
EN
FAULT
LOGIC
ON2
ON3
ON4
ON5
LDO3EN
FLT3
LDO4EN
FLT4
FLT5FLT2
FLT1
LDO2EN LDO5EN
VLOKEN
FREQ
EN
RSTIN
RESET
GND
COMP
FB
SEQ
ONL2
ONL3
ONL4
ONL5
LR1
LR2
LR3
LR4
LR5
FBL1
DRV1
DRV2 DRV5
DRV4
DRV3
FBL2 FBL5
FBL4
FBL3
ILIM
VL
IN
FLTM
300mV
CSH
CSL
FLTCS
PGND
DL
LX
DH
BST
VL
SS DONE FLTMDC-DC EN
STEP-DOWN
CONTROLLER
COMP
FB
ILIM
IN
LX
DH
DL
PGND
HIGH-SIDE
DRIVER
LOW-SIDE
DRIVER
SEQ
Figure 3. IC Functional Diagram
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