GENERAL DESCRIPTION
Improvements as high as 30% can be realized when using low power lamps and advanced LCD screen housings. This increased light output is achieved because the differential drive configuration is much less sensitive, and therefore less power is wasted in the capacitive parasitics that exist in the backlight housing. An additional benefit of this configuration is an even distribution of light. The IC includes an adjustable lamp out detect circuit that latches the IC off when a lamp fault is detected. Also, the unique architecture of the ML4877 allows the development of a backlight system that will inherently meet the UL requirements for safety. The ML4877 is optimized for large LCD applications applications where high efficiency is critical to maximize battery life. The high efficiency is achieved by a resonant scheme with zero voltage switching. FEATURES
s s s s s s s s s Ideal for 30W inverter designs, 1 to 8 lamp design PWM dimming capability Backlight lamp driver wi...
Micro Linear
