Maxim > Products > Power and Battery Management > MAX753, MAX754

MAX753, MAX754

CCFL Backlight and LCD Negative Contrast Controller

Digital or Potentiometer Control of LCD Contrast and CCFL Brightness

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

Description

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 notebook-computer applications.

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 separate digital inputs or using external potentiometers. LCD contrast and backlight brightness settings are preserved in their respective counters while in shutdown. On power-up, the LCD contrast counter and CCFL brightness counter are set to one-half scale.

The ICs are powered from a regulated 5V supply. The magnetics are connected directly to the battery, for maximum power efficiency.

The CCFL driver uses a Royer-type resonant architecture. 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.

Data Sheet

Download	Rev 1	(PDF, 432kB)
E-Mail

Key Features

Drives Backplane and Backlight
4V to 30V Battery Voltage Range
Low 500µA Supply Current
Digital or Potentiometer Control of CCFL Brightness and LCD Bias Voltage
Negative LCD Contrast (MAX753)
Positive LCD Contrast (MAX754)
Independent Shutdown of Backlight and Backplane Sections
25µA Shutdown Supply Current

Applications/Uses

Notebook Computers
Palmtop Computers
PDAs and Other Handheld Devices
Pen-Based Data Systems
Portable Data-Collection Terminals

Diagram

Block Diagram

Product Guides

Thermal Management (PDF)

Wireless (PDF)

Reliability Reports

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Software/Models

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Ordering Information

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Package:

Temperature:

Tape and Reel

Sample

Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX753C/D			Active	DICE SALES;NA pin;DICE; Land Pattern: Not Applicable Use pkgcode/variation: DICE*		See data sheet
MAX753CPE			Active	PDIP(N);16 pin;158.4 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P16-1*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
MAX753CSE			Active	SOIC(N);16 pin;61.9 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0097 (PDF) Use pkgcode/variation: S16-1*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
MAX753CSE+			Active	SOIC(N);16 pin;61.9 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0097 (PDF) Use pkgcode/variation: S16+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX753CSE+T			Active	N.SO; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX753CSE-T			Active	N.SO;16 pin Land Pattern: Not Available	0°C to +70°C	See data sheet
MAX753EPE			Active	PDIP(N);16 pin;158.4 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P16-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX753ESE			Active	SOIC(N);16 pin;61.9 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0097 (PDF) Use pkgcode/variation: S16-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX753ESE+			Active	SOIC(N);16 pin;61.9 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0097 (PDF) Use pkgcode/variation: S16+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX753ESE+T			Active	N.SO;16 pin Land Pattern: Not Available	-40°C to +85°C	See data sheet
Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX753ESE-T			Active	N.SO;16 pin Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX754C/D			Active	DICE SALES;NA pin;DICE; Land Pattern: Not Applicable Use pkgcode/variation: DICE*		See data sheet
MAX754CPE			Active	PDIP(N);16 pin;158.4 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P16-1*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
MAX754CSE			Active	SOIC(N);16 pin;61.9 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0097 (PDF) Use pkgcode/variation: S16-1*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
MAX754CSE-T			Active	N.SO;16 pin Land Pattern: Not Available	0°C to +70°C	See data sheet
MAX754EPE			Active	PDIP(N);16 pin;158.4 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P16-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX754ESE			Active	SOIC(N);16 pin;61.9 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0097 (PDF) Use pkgcode/variation: S16-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX754ESE+			Active	SOIC(N);16 pin;61.9 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0097 (PDF) Use pkgcode/variation: S16+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX754ESE+T			Active	N.SO;16 pin Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX754ESE-T			Active	N.SO;16 pin Land Pattern: Not Available	-40°C to +85°C	See data sheet

Notes:

Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

Similar Products by Function

MAX1610, MAX1611	Digitally Controlled CCFL Backlight Power Supplies
MAX1739, MAX1839	Wide-Brightness-Range CCFL Backlight Controllers

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Information Index

Overview		Technical Documents		Ordering Info		Related Products
Description Key Features Applications/Uses Key Specifications Diagram Notes and Comments		Data Sheet Application Notes Evaluation Kits Product Guides Reliability Reports Software/Models		Price and Availability Samples Buy Online Package Information Lead-Free Information		Similar Products by Function Similar Products by Application Evaluation Kits Products with Similar Part Numbers Products Used With This

Document Ref.: 19-0197 Rev 1; 1995-01-01
This page last modified: 2011-02-02