OZ962中文资料High-Efficiency Inverter Controller数据手册O2Micro规格书

描述 Description

GENERAL DESCRIPTION
The OZ962 is a unique high-efficiency, CCFL backlight controller. It generates symmetrical, near sinusoidal output voltage and current waveforms for driving a CCFL backlight. The OZ962 operates in a single, constant frequency, pulse-width-modulation (PWM) mode. Typical operating frequency ranges between 30 KHz to 100 KHz, depending on the CCFL and the transformer’s characteristics.
Operating in a PWM push-pull manner, the transformer in the OZ962 backlight inverter requires only one primary winding and one secondary winding, with the secondary winding requiring no fold-back treatment.
The OZ962 is available in both 16-pin SOIC and TSSOP packages. It is specified over the commercial temperature range: 0 oC to +70 oC. FEATURES
· Single-stage power conversion, input voltage range of 5V to 18V
· Reduces the number of components and board size by 30% compared with conventional design
· Supports both floating and grounded secondary designs
· 90% efficiency vs. typical 75% efficiency of conventional designs
· Internal open-lamp and short-circuit protections
· Wide dimming range
· Supports synchronization among multiple inverter modules
· Reliable 2-winding transformer design, eliminates arcing problems
· Constant frequency, symmetrical, sinusoidal drive