MAX753 Maxim, MAX753 Datasheet - Page 16

• Manufacturer Part Number: MAX753
• Description: CCFL Backlight and LCD Contrast Controllers
• Manufacturer: Maxim

Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
16 __________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 [phone]
© 1995 Maxim Integrated Products
CCFL Backlight and
LCD Contrast Controllers
_____________________Block Diagram
LADJ
CON
4
D/A CONVERTER
D/A CONVERTER
2
CLK
CLK
CONTROL
CONTROL
COUNTER
COUNTER
6-BIT
5-BIT
6-BIT
5-BIT
CADJ
LON
PRESET
PRESET
5
3
BATT
ON-TIME
MAX753/MAX754
LOGIC
15
LOGIC
12
PGND
COMPARATOR
PULSE-SKIP
AMPLIFIER
6
OFF-TIME
GND
LX
14
LOGIC
ERROR
Printed USA
CDRV
LDRV
V
LFB
CFB
REF
REF
CC
DD
CS
16
1
13
8
7
11
9
10
TRANSISTOR COUNT: 321;
SUBSTRATE CONNECTED TO V
___________________Chip Topography
LADJ
CADJ
CON
LON
GND
is a registered trademark of Maxim Integrated Products.
REF
V
DD
CFB
(1.930mm)
LFB
0.076"
CC
BATT
CS
LX
DD
.
LDRV
PGND
CDRV
(2.845mm)
0.112"