OZ962
High-Efficiency Inverter Controller
FEATURES
• • • • • • • • • Single-stage power conversion, input voltage range ...
OZ962
High-Efficiency Inverter Controller
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
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.
ORDERING INFORMATION
OZ962R - 16 lead TSSOP OZ962G - 16-pin plastic SOP
TYPICAL APPLICATION CIRCUIT
VDD (+12V) ENA GND CN1 U1 16 REF VDD OZ962G 2 15 RT OVP 14 3 NC CT ...