Rainbow-electronics MAX1611 Manual do Utilizador descarregar pdf (Página 13)

MAX1610/MAX1611

Digitally Controlled CCFL Backlight

Power Supplies

______________________________________________________________________________________ 13

OSC

5-BIT DAC

+

2.0V

÷8

LEVEL

SHIFTER

4.5V

REG

GND

DMOS

POWER

SWITCH

÷5

DIGITAL INTERFACE

UP (SDA)

DN (SCL)

SHDN (SMBSUS)

4µA

(NOTE)

MINDAC

SYNC

OTP

( ) ARE FOR MAX1611

NOTE: CIRCUITRY TO DETECT MINDAC = VL NOT SHOWN. SEE

CHOPPING THE LAMP CURRENT

SECTION.

REF

CSAV

BST

BATT



 Σ



Figure 9. Functional Diagram

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 19 20

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Rainbow-electronics MAX1611 Manual do Utilizador Página 13