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 (408) 737-7600

© 1995 Maxim Integrated Products

Printed USA

is a registered trademark of Maxim Integrated Products.

CCFL Backlight and

LCD Contrast Controllers

MAX753/MAX754

LOGIC

CON

CADJ

45

PGND

GND

12

6

5-BIT

D/A CONVERTER

6-BIT

D/A CONVERTER

ERROR

AMPLIFIER

PULSE-SKIP

COMPARATOR

10

9

8

CFB

16

LFB

13

LDRV

LADJ

LON

BATT

LX

14

15

3

2

CC

CS

REF

5-BIT

COUNTER

PRESET

CLK

CONTROL

CONTROL

6-BIT

COUNTER

PRESET

CLK

ON-TIME

LOGIC

OFF-TIME

LOGIC

1

7

REF

11

CDRV

_____________________Block Diagram

CDRV

PGND

LDRV

CADJ

GND

CON

LON

LADJ

LFB

BATT

LX

CC

CS

REF

CFB

0.112"

(2.845mm)

0.076"

(1.930mm)

___________________Chip Topography

TRANSISTOR COUNT: 321;