UCC1973 - BiCMOS Cold Cathode Fluorescent Lamp Driver Controller
Design goals for a Cold Cathode Fluorescent Lamp (CCFL) converter used in a notebook computer or portable application include small size, high efficiency, and low cost.
The UCC3972/3 CCFL controllers provide the necessary circuit blocks to implement a highly efficient CCFL backlight power supply in
UCC1973 Features
* 1mA Typical Supply Current
* Accurate Lamp Current Control
* Analog or Low Frequency Dimming Capability
* Open Lamp Protection
* Programmable Startup Delay
* 4.5V to 25V Operation
* PWM Frequency Synchronized to External Resonant Tank
