Skip to main content

Overview

Description

AccuSwitch™ digital PWM controller integrates a highly accurate control circuit with a 900V bipolar junction transistor (BJT) power switch to provide a complete solution for off-line power conversion at up to 18W of output power.

Renesas' PrimAccurate™ primary-side digital control algorithms eliminate the need for failure-prone optocouplers and ensure excellent cross-regulation accuracy to enable the longer operating lifetime, high performance and reduced cost required for industrial applications and appliances.

The output is designed to smoothly start-up into large capacitors while maintaining a quick turn-on time. It operates in quasi-resonant mode to optimize efficiency and incorporates a low power mode that achieves <30mW of no-load power consumption to meet global energy efficiency regulations.

Features

  • 18W Output
  • AccuSwitch™ Integrated 900V Power BJT
  • PrimAccurate™ Primary-Side Control
    • No Optocoupler Needed
  • Intelligent Digital Control Loop for Accurate Voltage Cross-Regulation
  • Meets Global Energy Efficiency Standards
    • <30mW No-Load Power Consumption
  • Quasi-resonant Control for Optimal Efficiency
  • Adaptively Controlled Soft Start-up
    • Fast, Smooth Start-up into Large Capacitive Loads (up to 6,000µF)
  • EZ-EMI™ Design
    • Reduces Filtering Requirements
    • Easily Meets Global EMI Specifications
  • Fully Protected from Fault Conditions
    • Built-In Over-Temperature Protection
    • Output Overvoltage and Overcurrent Protection
    • Sense-Resistor Short Circuit Protection
  • Thermally Efficient SO-10 Batwing Package

Comparison

Applications

  • Smart Electricity Meters
  • Industrial Applications

Documentation

Type Title Date
Datasheet Log in to Download PDF 1.31 MB
Product Brief PDF 479 KB
Brochure PDF 10.21 MB
Other Log in to Download ZIP 2.89 MB
4 items

Design & Development

Models

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

Diagram of ECAD Models

Product Options

Applied Filters: