Rainbow-electronics MAX8761 Uživatelský manuál stáhnout pdf

General Description

The MAX8710/MAX8711/MAX8712/MAX8761 offer com-

plete linear-regulator power-supply solutions for thin-film

transistor (TFT) liquid-crystal-display (LCD) panels used

in LCD monitors and LCD TVs. All four devices include a

high-performance AVDD linear regulator, a positive

charge-pump regulator, a negative charge-pump regula-

tor, and built-in power-up sequence control. The

MAX8710, MAX8711, and MAX8761 also include a high-

current operational amplifier. Additionally, MAX8710 and

MAX8761 provide logic-controlled high-voltage switches

to control the positive charge-pump output.

The linear regulator directly steps down the input voltage

to generate the supply voltage for the source-driver ICs

(AVDD). The two built-in charge-pump regulators

are used to generate the TFT gate-on and gate-off sup-

plies. The high-current operational amplifier is typically

used to drive the LCD backplane (VCOM) and features

high output current (150mA), fast slew rate (12V/µs), and

wide bandwidth (12MHz). Its rail-to-rail inputs and output

maximize flexibility.

The MAX8710 and MAX8761 are available in a 24-pin

thin QFN package, the MAX8711 is available in a 16-pin

thin QFN package, and the MAX8712 is available in a

12-pin thin QFN package. All three packages are 4mm x

4mm with a maximum thickness of 0.8mm for ultra-thin

LCD panel design. They operate over the -40°C to

+100°C temperature range (-40°C to +85°C for

MAX8761).

Applications

LCD Monitor Panel Modules

LCD TV Panel Modules

Features

♦ High-Performance Linear Regulator

1.6% Output Accuracy

Works with Small Ceramic Output Capacitors

Fast Transient Response

Foldback Current Limit

♦ 50mA Negative Regulated Charge Pump

♦ 20mA Positive Regulated Charge Pump with

Adjustable Delay

♦ Built-In Power-Up Sequence

♦ High-Current Operational Amplifier

(MAX8710/MAX8711/MAX8761)

±150mA Output Short-Circuit Current

12V/µs Slew Rate

12MHz, -3dB Bandwidth

Rail-to-Rail Inputs/Output

♦ Dual-Mode™ High-Voltage Switches

(MAX8710/MAX8761)

♦ Thermal Protection

♦ Latched Fault Protection with Timer

MAX8710/MAX8711/MAX8712/MAX8761

Low-Cost, Linear-Regulator

LCD Panel Power Supplies

________________________________________________________________ Maxim Integrated Products 1

FBN

SUPCP

DRVN

DLP

POSB

SUPB

OUTB

NEGB

MODE

CTL

GND

INL

OUTL

FBL

SHDN

DRVP

FBP

SRC

VGON

AVDD

GON

DRN

THR

REF

VGOFF

CTL

AVDD

VCOM

REF

AVDD

VIN

MAX8710MAX8761

Minimum Operating Circuit

SRC

FBN

DLP

MODE

FBL

CTL

OUTL

SUPCP

DRVN

DRVP

N.C.

131415161718

GND

OUTB

SUPB

THR

FBP

SHDN

654321

NEGB

INL

POSB

REF

DRN

GON

MAX8710/MAX8761

THIN QFN 4mm x 4mm

TOP VIEW

Pin Configurations

Ordering Information

PART TEMP RANGE PIN-PACKAGE

M A X8 7 1 0E TG+ -40°C to +100°C 24 Thin QFN 4mm x 4mm

M A X8 7 1 1E TE+ -40°C to +100°C 16 Thin QFN 4mm x 4mm

M A X8 7 1 2E TC+ -40°C to +100°C 12 Thin QFN 4mm x 4mm

M A X8 7 6 1E TG+ -40°C to +85°C 24 Thin QFN 4mm x 4mm

19-3174; Rev 1; 9/05

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

Pin Configurations continued at end of data sheet.

EVALUATION KIT

AVAILABLE

Dual Mode is a trademark of Maxim Integrated Products, Inc.

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Strany 1 - LCD Panel Power Supplies

General DescriptionThe MAX8710/MAX8711/MAX8712/MAX8761 offer com-plete linear-regulator power-supply solutions for thin-filmtransistor (TFT) liquid-cr

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