Datasheet > MAX753

MAX753

更新时间： 2024-11-25 14:57:23

品牌	Logo	应用领域
亚德诺 - ADI		控制器
页数	文件大小	规格书
16页	427K
描述
CCFL背光灯及LCD对比度控制负压控制器

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数据手册

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MAX753 数据手册

19-0197; Rev 1; 1/95

CCFL Backlight and

LCD Contrast Controllers

_______________General Description

____________________________Features

♦ Drives Backplane and Backlight

♦ 4V to 30V Battery Voltage Range

♦ Low 500µA Supply Current

The MAX753/MAX754 drive cold-cathode fluorescent

lamps (CCFLs) and provide the LCD backplane bias

(contrast) power for color or monochrome LCD panels.

These ICs are designed specifically for backlit note-

book-computer applications.

♦ Digital or Potentiometer Control of CCFL

Both the backplane bias and the CCFL supply can be

shut down independently. When both sections are shut

down, supply current drops to 25µA. The LCD contrast

and CCFL brightness can be adjusted by clocking sep-

arate digital inputs or using external potentiometers.

LCD contrast and backlight brightness settings are pre-

served in their respective counters while in shutdown.

On power-up, the LCD contrast counter and CCFL

brightness counter are set to one-half scale.

Brightness and LCD Bias Voltage

♦ Negative LCD Contrast (MAX753)

♦ Positive LCD Contrast (MAX754)

♦ Independent Shutdown of Backlight and

Backplane Sections

♦ 25µA Shutdown Supply Current

The ICs are powered from a regulated 5V supply. The

magnetics are connected directly to the battery, for

maximum power efficiency.

______________Ordering Information

The CCFL driver uses a Royer-type resonant architec-

ture. It can provide from 100mW to 6W of power to one

or two tubes. The MAX753 provides a negative LCD

bias voltage; the MAX754 provides a positive LCD bias

voltage.

PART

TEMP. RANGE

0°C to +70°C

-40°C to +85°C

0°C to +70°C

-40°C to +85°C

PIN-PACKAGE

16 Plastic DIP

16 Narrow SO

Dice*

MAX753CPE

MAX753CSE

MAX753C/D

MAX753EPE

MAX753ESE

MAX754CPE

MAX754CSE

MAX754C/D

MAX754EPE

MAX754ESE

16 Plastic DIP

16 Narrow SO

16 Plastic DIP

16 Narrow SO

Dice*

________________________Applications

Notebook Computers

Palmtop Computers

Pen-Based Data Systems

Personal Digital Assistants

Portable Data-Collection Terminals

16 Plastic DIP

16 Narrow SO

* Contact factory for dice specifications.

__________________Pin Configuration

TOP VIEW

LFB

LADJ

LON

CON

BATT

LDRV

PGND

CDRV

MAX753

MAX754

CADJ

GND

REF

CFB

DIP/SO

Block Diagram located at end of data sheet.

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

12 3 4 5 6 7...16

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与MAX753相关器件

型号	品牌	获取价格	描述	数据表
MAX-753-0512	SLPOWER	获取价格	700, 750 WATTS MULTIPLE OUTPUT
MAX7530J/D	MAXIM	获取价格	CMOS 10 and 12 Bit Multiplying D/a Converters
MAX7530JCWE	MAXIM	获取价格	CMOS 10 and 12 Bit Multiplying D/a Converters
MAX7530JD	MAXIM	获取价格	CMOS 10 and 12 Bit Multiplying D/a Converters
MAX7530JN	MAXIM	获取价格	CMOS 10 and 12 Bit Multiplying D/a Converters
MAX7530JQ	MAXIM	获取价格	CMOS 10 and 12 Bit Multiplying D/a Converters
MAX7530KCWE	MAXIM	获取价格	CMOS 10 and 12 Bit Multiplying D/a Converters
MAX7530KD	MAXIM	获取价格	CMOS 10 and 12 Bit Multiplying D/a Converters
MAX7530KN	MAXIM	获取价格	CMOS 10 and 12 Bit Multiplying D/a Converters
MAX7530KQ	MAXIM	获取价格	CMOS 10 and 12 Bit Multiplying D/a Converters

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