OZ964.pdf

The OZ964 is a high-efficiency Pulse Width Modulation (PWM) controller designed for DC/DC and DC/AC high-voltage applications, including Cold Cathode Fluorescent Lamp (CCFL) backlight applications for Liquid Crystal Displays (LCD). It operates in zero-voltage switching mode, minimizing electromagnetic interference (EMI), and achieves high power-conversion efficiency. The controller supports a wide input voltage range, provides constant operating frequency, and features built-in PWM dimming control, soft start function, open-lamp protection, over-voltage protection, shutdown delay, under-voltage lockout protection, and toggle pin to reset the IC. The OZ964 is available in various packages, including 20-pin SSOP, 20-pin SOIC, and 20-pin PDIP, with operating temperature ranges from 0°C to 70°C or -40°C to +85°C.