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IC manufacturers O2 Micro International Ltd

IC manufacturers (84)

O2 Micro International Ltd OZ8023

Industrial/Automotive Applications

Overview

TopologyOther Topology

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

Products

Order Code Data­sheet Simu­lation Downloads Product seriesL
(µH)
IR
(A)
ISAT
(A)
RDC typ.
(mΩ)
RDC max.
(mΩ)
fres
(MHz)
SizeVersion Samples
7447709821SPEC
9 files WE-PD SMT Power Inductor 820 0.95 1.1 815 1000 1.2 1210 Standard
Order Code Data­sheet Simu­lation
7447709821SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Product seriesL
(µH)
IR
(A)
ISAT
(A)
RDC typ.
(mΩ)
RDC max.
(mΩ)
fres
(MHz)
SizeVersion Samples