ISL97650 Intersil Corporation, ISL97650 Datasheet - Page 9

• Manufacturer Part Number: ISL97650
• Description: 4-Channel Integrated LCD Supply
• Manufacturer: Intersil Corporation

Block Diagram
V
IN1
DELB
VDC1
CDEL
, V
N
FBP
CM1
V
FBB
ENL
FBN
OUT
IN2
EN
IN2
V
GM AMPLIFIER
0.75 V
0.75 V
0.4V
0.2V
REF
V
V
SUP
UVLO COMPARATOR
UVLO COMPARATOR
REGULATOR
REF
REF
REF
-
+
-
+
-
+
-
+
-
+
-
+
OSCILLATOR
SUP
1.2MHz
9
C1-
SEQUENCE CONTROLLER
REFERENCE BIAS
C1+
COMPARATOR
CURRENT
SUP
+
-
P
V
LIMIT
AND
OUT
REF
CURRENT LIMIT
THRESHOLD
C2+ C2-
ISL97650
REGULATOR
CURRENT AMPLIFIER
GENERATOR
SAWTOOTH
∑
DRIV
SLOPE
COMPENSATION
BUFFER
CONTROL
CURRENT LIMIT
COMPARATOR
LOGIC
GENERATOR
CTL
SAWTOOTH
CONTROL
AMPLIFIER
CURRENT
LOGIC
∑
SLOPE
COMPENSATION
P
BUFFER
OUT
CURRENT LIMIT
THRESHOLD
COMPARATOR
COM
GM AMPLIFIER
UVLO
0.75 V
+
+
-
-
R
V
SENSE
REF
REF
November 28, 2006
PGND1
PGND2
CM2
LX1
LX2
VDC2
CB
LXL
FBL
FN9198.3