ISL97652 データシートの表示（PDF） - Intersil

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ISL97652

4-Channel Integrated LCD Supply with Dual VCOM Amplifiers

Intersil 

Block Diagram

CBOOT

PVIN1

PVIN2

SWB1

SWB2

PGND1

ISL97652

SSB

VCB

FBB

FB

VC FREQ

SS

F/F

S

Q

R

OSC

-

+

BUCK CONVERTER

-

-

+

REF

+

OSC

F/F

S

SLOPE

COMPENSATION

∑

-

∑

+

Q

R

+

BOOST CONVERTER -

FOSC

GATE

CONTROL

SW1

SW2

PGND2

PGND3

SUI

SWI

SWO

AVIN

POS1

NEG1

OGND

OUT1

DLY1

DLY2

REF

PVIN2

VDC

RE

CE

VDPM

+

-

BIAS AND

SEQUENCE

CONTROL

5V

REGULATOR

VON

SLICE CIRCUIT

VGH VGHM VGHL VFLK

UVLO AND THERMAL

PROTECTION

AVIN

+

-

POS2

NEG2

OUT2

AGND

FOSC

FOSC

VOFF

CHARGE

PUMP

CONTROL

VON

CHARGE

PUMP

CONTROL

EN1

EN2

SUP

DRVN

GND

+ 0.5V

-

SUP

FBN

DRVP

+ 1.265V

-

FBP

10

FN9287.1

November 2, 2007

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