O2 Micro International Ltd OZ8023

Description

The OZ8023 is a voltage-mode, quasi-resonant converter controller, suitable for offline, AC/DC flyback converter applications. It can be used as a single-stage power factor correction controller for an isolated power supply or LED driver applications.

The OZ8025 is a controller for an isolated LED driver application. It provides a proprietary 3-level dimming control to LEDs using an ON/OFF wall switch.

Features

• Quasi-resonant converter controller

• Built-in high-voltage startup circuit

• Voltage-mode control simplifies circuit design

• Under-voltage lockout with hysteresis

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

• Excellent line-voltage regulation

• Provides complete protectionfunctions:

• Clamped gate drive output

• Over-voltage for IC bias voltage

• Cycle-by-cycle current limit

• Output short circuit; over load;output over-voltage; and internalover-temperature

Typical applications

• Isolated LED Driver

More information

• Datasheet
• IC product information