Product Summary

The OZ9938GN is a LCDM Inverter Controller. The OZ9938GN provides a regulated ignition voltage and appropriate protection features for over-voltage or over-current conditions. The OZ9938GN offers a high level of integration, while maintaining flexibility and high-efficiency operation that reduces external component heating, resulting in higher reliability and longer CCFL life. The proprietary design technique provides a simple, low-cost system solution.

Parametrics

OZ9938GN absolute maximum ratings: (1)Input Voltage, VDDA: 7.0V; (2)GNDA: +/- 0.3V; (3)Signal Inputs: -0.3V to VDDA +0.3V; (4)Operating Temp: -20 to 85℃; (5)Operating Junction Temp: 125℃; (6)Storage Temp: -55 to 150℃.

Features

OZ9938GN features: (1)Positive PWM dimming polarity; (2)Constant operating frequency; (3)Drives positive/negative-impedance lamps during ignition; (4)High drive current for external MOSFETs; (5)User-defined ignition time and shutdown delay time; (6)Multiple mode dimming control; (7)Built-in intelligence for ignition and normal operation of CCFLs; (8)Built-in open-lamp protection and overvoltage protection for backlight system; (9)Optimized soft-start function.

Diagrams

OZ9938GN pin diagram