Microsemi

Linfinity Microelectronics Division

11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570

Page 7

Copyright

© 2000

Rev. 0.3b,2000-11-20

RangeMAX™

LXM1614-14-11

A

M I CROSEM I

COM P A N Y

   

     


 


DUAL DIMMING CAPABILITY

As seen in the Brightness vs. Time graphs, the boost mode

operation can improve the performance of cold cathode

florescent lamps in any LCD application by reducing the time it

takes

to

warm up

lamps

to

their

optimum operating

temperature. This feature is helpful in large LCD multi-lamp

monitors

as

well

as

automotive

or

industrial

extreme

temperature applications.

The “boost” control is used to provide a timed overdrive

mode to maximize light output over temperature. After a panel

is characterized with a profile of the user’s application (such as

desired light output as a function of ambient light and

temperature), the appropriate boost level and duration of the

boost can be set.

Further wide range dimming control is

provided by the Brite input dimming function.