MAX1997ETJ Maxim Integrated Products, MAX1997ETJ Datasheet - Page 14

• Manufacturer Part Number: MAX1997ETJ
• Description: LCD Drivers
• Manufacturer: Maxim Integrated Products

Specifications of MAX1997ETJ

• Dc: 0618
• Lead Free Status / Rohs Status: No

Quintuple/Triple-Output TFT LCD Power Supplies
with Fault Protection and VCOM Buffer
Figure 2. System Functional Diagram
14
______________________________________________________________________________________
V
V
SOURCE
GAMMA
V
V
C
LOGIC
V
V
V
P
MAIN
SOURCE
V
VCOM
N
DRVA
CT
DRV1
FB1
DRV2
FB2
VDDB
FBPB
OUTB
FBNB
N.C. N.C.
MAX1997 ONLY
REF, OSC, AND BIAS
ONN
PFLT FREQ
WITH SOFT-START
WITH SOFT-START
COMPARATOR
COMPARATOR
AND FAULT
AND FAULT
SEQUENCE
CONTROL
REG 1
REG 2
ONP
ON2
GND
BUFFER
VCOM
CONTROL INPUTS
ONDC
REF
CONTROL
BLOCK
SHDN
OC
MAX1997/MAX1998
WITH SOFT-START
WITH SOFT-START
WITH SOFT-START
OVERCURRENT
UVLO AND GATE
COMPARATOR
MAIN STEP-UP
COMPARATOR
COMPARATOR
COMPARATOR
REGULATOR
AND FAULT
AND FAULT
AND FAULT
CONTROL
REG P
REG N
IN
PGND
DRVN
DRVP
GATE
OCN
OCP
FBP
FBN
LX
FB
V
IN
V
MAIN
V
V
V
C
G_ON
G_OFF
V
P