MAX1610 Datasheet, PDF (13/20 Pages) Maxim Integrated Products – Digitally Controlled CCFL Backlight Power Supplies

Digitally Controlled CCFL Backlight
Power Supplies
BATT
BST
LX
DMOS
POWER
SWITCH
CS
CSAV
VL
LEVEL
4.5V
GND
SHIFTER
REG
Σ
CC
REF
MINDAC
GM
÷8
+
(NOTE)
2.0V
-
SYNC
OSC
SS
÷5
R
SQ
4µA
OTP
UP (SDA)
DN (SCL)
SHDN (SMBSUS)
5
DIGITAL INTERFACE
( ) ARE FOR MAX1611
NOTE: CIRCUITRY TO DETECT MINDAC = VL NOT SHOWN. SEE CHOPPING THE LAMP CURRENT SECTION.
Figure 9. Functional Diagram
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