ISL97652_07 Datasheet

IC型號(hào)：
ISL97652_07
PDF描述：
4-Channel Integrated LCD Supply with Dual VCOM Amplifiers
文件大小：
677.84KB
PDF頁(yè)數(shù)：
25頁(yè)
芯片廠家：
INTERSIL

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ISL97652

Data Sheet

November 2, 2007

FN9287.1

4-Channel Integrated LCD Supply with

Dual V

COM

Amplifiers

The ISL97652 represents a high power, integrated LCD

supply IC targeted at large panel LCD displays. The

ISL97652 integrates a high power, boost converter for A

VDD

generation, delay switch, regulated V

and V

OFF

charge

pumps, V

slicing circuitry, a buck regulator for logic supply

generation and dual high power V

COM

amplifiers.

Operating at 650kHz or 1.3MHz, the A

VDD

boost converter

features a 2.8A boost FET. A short circuit protected A

VDD

delay switch is integrated to provide sequencing of the A

VDD

output. Feedback is taken from the far side of the delay FET

for improved regulation and an OVP circuit protects output

side components. The boost features programmable

soft-start.

The asynchronous buck converter features an integrated

2.5A FET. It also operates from the 650kHz or 1.3MHz

internal clock and features separate enable and soft-start

control.

The dual charge pump controllers used for V

and V

OFF

generation uses the full F

OSC

switching frequency to allow

the use of small output components for board space

efficiency. V

is further processed through an integrated

ON-SLICE

circuit for reduced flicker.

The integrated amplifiers feature high slew-rate and high

output current capability. They are permanently enabled

when AVIN is present.

Available in the 48 Ld 7mmx7mm QFN package, the

ISL97652 is specified for ambient operation over the

-40擄C to +85擄C temperature range.

Features

鈥?8V to 15V input supply

鈥?A

VDD

boost up to 19.5V (OVP threshold), with integrated

2.8A

PEAK

FET

鈥?Overvoltage protection (OVP)

鈥?2A integrated A

VDD

delay FET, with short circuit protection

鈥?Dual charge pump controllers for V

and V

OFF

鈥?V

LOGIC

buck with integrated 2.5A

PEAK

FET

鈥?V

slicing

鈥?Dual high speed V

COM

amplifiers

鈥?650kHz/1.3MHz switching frequency

鈥?Integrated sequencing

鈥?UVLO and OTP protection

鈥?Thermally enhanced 7x7 QFN package

鈥?Pb-free (RoHS compliant)

Applications

鈥?LCD-TVs (up to 40鈥?

鈥?Industrial/medical LCD displays

Pinout

ISL97652

(48 LD QFN)

TOP VIEW

47 OGND

48 NEG1

46 OUT2

44 NEG2

45 POS2

42 SWO

43 AVIN

38 SW2

37 SW1

36 PGND3

35 PGND2

34 PGND1

33 EN1

32 EN2

THERMAL

PAD

31 VC

30 SS

29 DLY2

28 FREQ

27 VDC

26 PVIN2

25 PVIN1

SUP 13

DRVN 14

AGND 15

FBN 16

REF 17

DLY1 18

SSB 19

VCB 20

FBB 21

CBOOT 22

SWB1 23

SWB2 24

39 SWI

Ordering Information

PART NUMBER

(Note)

ISL97652IRZ

ISL97652IRZ-T*

PART

MARKING

TEMP.

RANGE

(擄C)

PACKAGE

(Pb-Free)

PKG.

DWG. #

POS1 1

OUT1 2

VGL 3

CE 4

VFLK 5

ISL97652IRZ -40 to +85 48 Ld 7x7 QFN L48.7x7

VDPM 6

RE 7

VGHM 8

VGH 9

FBP 10

GND 11

DRVP 12

ISL97652IRZ-TK* ISL97652IRZ -40 to +85 48 Ld 7x7 QFN L48.7x7

*Please refer to TB347 for details on reel specifications.

NOTE: These Intersil Pb-free plastic packaged products employ

special Pb-free material sets; molding compounds/die attach materials

and 100% matte tin plate PLUS ANNEAL - e3 termination finish, which

is RoHS compliant and compatible with both SnPb and Pb-free

soldering operations. Intersil Pb-free products are MSL classified at Pb-

free peak reflow temperatures that meet or exceed the Pb-free

requirements of IPC/JEDEC J STD-020.

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 1-888-468-3774

Intersil (and design) is a registered trademark of Intersil Americas Inc.

All other trademarks mentioned are the property of their respective owners.

40 SUI

41 FB

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