LXM1611-01 MICROSEMI, LXM1611-01 Datasheet

LXM1611-01

Manufacturer Part Number

LXM1611-01

Description

Manufacturer

MICROSEMI

Datasheet

1.LXM1611-01.pdf (5 pages)

Specifications of LXM1611-01

Operating Temperature Classification

Commercial

Pin Count

Lead Free Status / Rohs Status

Not Compliant

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Download datasheet (283Kb)

H E

1.0 1/05

RangeMAX Wide Range Dimming, Single

Output Inverter. The LXM1611 series of

Direct Drive

cent Lamp) Inverter Modules are specifically

designed for driving LCD backlight lamps.

cels in applications where critical parameters

include very wide range dimmability, high

efficiency and reliable fail-safe design in a

small form factor.

dimming CCFL inverters, the LXM1611 pro-

vides the designer a vastly superior display

brightness range. 100:1+ brightness range

is achievable with virtually any LCD display.

Our wide range dimming provides excep-

tional display readability at less than 1% of

full brightness, allowing both power savings

and low ambient light operating capability

(i.e. "night readable").

panels with low-voltage insulation on the

lamp return wire.

nique. Digital dimming provides flicker-

free brightness control in any wide-range

dimming application. Dimming ratios greater

than 100:1 can be achieved. Incorporation

of a video synchronization feature allows

wide ratio dimming without the display dis-

turbances and interference seen with com-

petitive products.

NOTE: For current data & package dimensions, visit our web site: http://www.linfinity.com.

Protected By U.S. Patents: 5,923,129; 5,930,121; Patents Pending

Similar to the LXM1610, the LXM1611 ex-

Unlike the LXM1610 or any traditional

The LXM1611 is recommended for use in

RangeMAX Digital Dimming Tech-

N F I N I T E

CCFL (Cold Cathode Fluores-

11861 W

O W E R

Standard Analog

Dimming Inverter

Light Output (Nits)

ESTERN

D E S C R I P T I O N

O F

I N

VENUE

LinFinity's

RangeMAX

N N O V A T I O N

M O D U L E O R D E R I N F O R M AT I O N

I N I T Y

, G

input that permits brightness control from an

external potentiometer or DC voltage source.

The resultant "burst drive" that energizes the

lamp was designed specifically to ensure that

no premature lamp degradation occurs. (See

"How RangeMAX Works" Section)

ules convert unregulated DC voltage from the

system battery or AC adapter directly to high-

frequency, high-voltage waves required to

ignite and operate CCFL lamps.

design is based on a new Direct Drive topol-

ogy, which provides a number of cost and

performance advantages. The LXM1611-01

series Direct Drive inverters eliminate the clas-

sic resonant inductor and capacitors, thus

reducing cost and allowing a 30% reduction

in module size.

this new topology are fixed-frequency op-

eration and secondary-side strike-voltage

regulation.

discharge in the output transformer and re-

lated circuitry, providing longer life and higher

reliability. All LXM1611 modules feature both

open and shorted lamp protection.

tronically and mechanically) to specific cus-

tomer requirements.

ARDEN

The modules are equipped with a dimming

Wide Input Voltage Range. The mod-

Direct Drive Technology. The module

Additional Features. Other benefits of

Strike-voltage regulation minimizes corona

The LXM1611 is fully customizable (elec-

P R O D U C T H I G H L I G H T

105

ROVE

I C R O E L E C T R O N I C S

LXM1611-01

, CA. 92841, 714-898-8121, F

RangeMAX

RangeMAX technology allows the designer to operate

in a lower "brightness" and therefore at lower "power

consumption" than can be reached using traditional

analog dimming inverters.

Dotted line indicates area where panel variations and

parasitics will impact minimum light level with analog

dimming.

Data presented for a RangeMAX inverter driving a

13.3" LCD with a 1.2 Nit to 120 Nit brightness range.

The minimum power levels were 0.4 watts

(RangeMAX) vs. 2.1 watts (analog dimming) for a

power consumption savings of 1.7 watts.

I G I T A L

Not Recommended For New Design

I M M I N G

Production Data Sheet

N C

: 714-893-2570

C C F L I

RangeMAX Wide Range Dimming

8V to 18V Input Voltage Range

30% Smaller Than CS-ZVS Models

Easy To Use Brightness Control

MicroAmp SLEEP Mode

Output Short-Circuit Protection And

Automatic Strike-Voltage Regulation

7.3mm Max. Module Height, 16mm Module

Width

Fixed Frequency Operation

Notebook And Sub-Notebook Computers

Portable Instrumentation

Desktop Displays

Low Ambient Light Conditions (i.e. Aircraft

Cabins, Automobile)

High Efficiency And Sleep Mode Feature

Extends Computer Battery Life

Smooth, Flicker Free 1-100% Full-Range

Brightness Control Gives Your Product A

High Quality Image

Output Open Circuit Voltage Regulation

Minimizes Corona Discharge For Long Life

And High Reliability

Power Efficient, "Low Brightness" Capability

Allows For Advanced Power Management

K E Y F E A T U R E S

A P P L I C A T I O N S

LXM1611-01

B E N E F I T S

N V E R T E R

O D U L E

Related parts for LXM1611-01

LXM1611-01 Summary of contents

Page 1

... Direct Drive Technology. The module design is based on a new Direct Drive topol- ogy, which provides a number of cost and performance advantages. The LXM1611-01 series Direct Drive inverters eliminate the clas- sic resonant inductor and capacitors, thus reducing cost and allowing a 30% reduction in module size ...

Page 2

... PW f SYNC 15V , SLEEP 0.8V IN (MIN RangeMAX (Internally Limited) RMS Recommended Operating Conditions Min. R.C. Max 0.0 2.5 300 675 800 7 LXM1611-01 Min. Typ. Max 6.3 7 1500 1800 -10 -12 -14 2 -0.3 0.8 120 180 4.0 6.5 -0.3 1.0 ...

Page 3

... Production Data Sheet 18V ON, -0.3V < SLEEP < 0.8V = OFF 2.5V gives maximum lamp current 3.93 (100) 2.36 (60) 1.20 (30.5) 2.06 (52.25) Ø 0.116 (2.95) 0.15 (3.85) Recommended Mate: LXM1611- 25µs < t < 250µs, 49Hz < f < 150Hz PW SYNC 0.64 (16) Warning!! High Voltage Present 3 ...

Page 4

... LXM1611-01 D LAMP VOLTAGE & LAMP CURRENT — Burst Mode Operation FIGURE 1 — 50% Burst Duty Cycle Rather than using the traditional dimming technique of varying lamp current magnitude to adjust light output, RangeMAX inverters use a fixed lamp current value with a duty cycle control method. ...

Page 5

... Never connect V this will defeat lamp current regulation. If both lamp wires have heavy high voltage insulation, connect the longest wire to V BRITE 4.7µF LXM1611-01 RangeMAX and Direct Drive are trademarks of Linfinity Microelectronics Inc. LXM1611- input. If the pulse SYNC ), connect connect SYNC(+) floating ...

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