Rainbow-electronics MAX686 Manuel d'utilisateur télécharger pdf (Page 15)

MAX686

DAC-Controlled Boost/Inverter

LCD Bias Supply with Internal Switch

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Functional Diagram

V

DD

V

CC

GND

BIAS

MAX686

DN

POL

POK

PGND

ISET

LX

DACOUT

REF

1.25V

1.125V

1.125V

ERROR

AMP

FB

UP

DIGITAL

INTERFACE

ON-TIME/

OFF-TIME

CONTROL

CURRENT-LIMIT

COMPARATOR

POK

COMPARATOR

BANDGAP

REFERENCE

SHDN

LCDON

6-BIT

DAC

1 2 ... 10 11 12 13 14 15 16

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