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IC-Hersteller O2 Micro International Ltd

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O2 Micro International Ltd OZ8022A

Intelligent Lighting

Details

TopologieAbwärtswandler
Eingangsspannung85-115 V
Ausgang 170 V / 0.08 A

Beschreibung

The OZ8022A/22B/22M are controllers for Buck converters that use quasi-resonant conversion technology. Each can be used to drive high brightness LEDs in offline applications.

OZ8022A/22B/22M provide proprietary Free Dimming technology to control LED brightness using a non-dimming ON/OFF wall switch.

Eigenschaften

  • OZ8022A: Three-step forward, 100%-60%-20%, analog dimming control using wall switch

  • Quasi-resonant converter controller for high brightness LEDs

  • 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

  • Provides complete protection functions:

    -Maximum gate drive output at 19.5V

    -Over-voltage for IC bias voltage

  • Cycle-by-cycle current limit

    -LED short circuit

    -Output over-voltage and internal Over temperature

Typische Anwendungen

  • General Lighting

Weiterführende Informationen

Artikeldaten

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