OZ8024R datasheet(46/56 Pages) ETC2

46 / 56 page

OZ9992/9992A

FEATURES

• Quasi-resonant AC/DC converter controller for high brightness LEDs

• Three-step analog dimming control using wall switch

• Low start-up and operating current, maximizing conversion efficiency

• Peak current mode control simplifies circuit design

• Under-voltage lockout with hysteresis

• Minimum off-time control for light-load operation, maximizing efficiency

• Constant output power for universal AC input

• Provides complete protection functions:

- Maximum gate drive output at 18.0V

- Over-voltage for IC bias voltage

- Cycle-by-cycle current limit

- LED short circuit; output over-voltage; and internal thermal

GENERAL DESCRIPTION

OZ9992/92A are controllers for offline AC/DC flyback converter applications

that use quasi-resonant power conversion technology. One application using

OZ9992/92A drives high power LEDs using compensated peak current mode

control to regulate the average LED current.

OZ9992/92A require very low start-up current, which maximizes the efficiency of

the converter. Each IC provides a proprietary Free Dimming technology using a

non-dimming ON/OFF wall switch.

APPLICATIONS

APPLICATION DIAGRAM

• General Lighting

• Power Adapter/Battery

Charger

• TV/Monitor Power

Supplies

U.S. Patent #8,044,608; and more patents pending.

OZ8024R Datasheet(PDF) 46 Page - List of Unclassifed Manufacturers