Power Integrations InnoSwitch™3 with PowiGaN™ ICs

Power Integrations InnoSwitch™3 with PowiGaN™ ICs incorporate both primary and secondary controllers, with sensory elements and safety-rated feedback mechanism (FluxLink™) into a single IC. The InnoSwitch3-Series ICs offer ease of use in developing and manufacturing low-voltage, high-current power supplies.

The InnoSwitch3-CP simplifies the development of high-current power supplies, particularly those in compact enclosures or with high-efficiency requirements. The InnoSwitch3-CP is an offline CV/CC QR Flyback Switcher IC with integrated 650V/725V MOSFET, synchronous rectification, FluxLink feedback, and a constant power profile of up to 65W. The InnoSwitch-CP architecture maintains high efficiency across the entire load range.

The InnoSwitch3-CE provides an easy environment for development of high-current power supplies, particularly those in compact enclosures or with high-efficiency requirements. The InnoSwitch3-CE is an offline CV/CC Flyback Switcher IC with integrated 650V MOSFET, synchronous rectification, FluxLink feedback, and constant voltage and constant current (CV/CC) up to 65W. The InnoSwitch-CE architecture improves system reliability and ensures the highest efficiency across the power range.

Power Integrations InnoSwitch3-EP utilizes the development of high-current power supplies, particularly those in compact enclosures or with high-efficiency requirements. The InnoSwitch3-EP is an offline CV/CC QR Flyback Switcher IC with integrated 725V MOSFET, synchronous rectification, and FluxLink feedback for applications up to 45W. The InnoSwitch-EP architecture maintains high efficiency across the entire load range.

Features

  • InnoSwitch3-CP
    • Maximizes efficiency across the entire load range
    • Incorporates a multi-mode Quasi-Resonant (QR)/CCM flyback controller, 650V MOSFET (INN326x) or 725V MOSFET
      (INN327x), secondary-side sensing and synchronous rectification driver
    • Integrated FluxLink, HIPOT-isolated feedback link
    • Supports fast charge protocols such as USB PD/QC 4.0 as well as proprietary charging protocols
    • Constant Power (CP) Profile minimizes charging time with continuous adjustment of output current and voltage
    • Exceptional CV/CC/CP accuracy, independent of transformer design or external components
    • External IS resistor allows for custom CC programming
    • Instantaneous transient response ±5% CV with 0%-100%-0% load step
  • InnoSwitch3-CE
    • Incorporates flyback controller, 650V MOSFET, secondary-side sensing, and synchronous rectification driver
    • FluxLink™ integrated, HIPOT-isolated, feedback link
    • Exceptional CV accuracy, independent of transformer and board component changes
    • Accurate and programmable output current
    • Multiple protection features, including line and load overvoltage, overcurrent, and secondary SR MOSFET open/short-circuit protection
    • Less than 15mW no-load, including input line sensing
  • InnoSwitch3-EP
    • Maximizes efficiency across whole load range
    • Incorporates a multi-mode Quasi-Resonant (QR)/CCM flyback controller, 725V MOSFET, secondary-side sensing, and synchronous rectification driver
    • Integrated FluxLink, HIPOT-isolated feedback link
    • Exceptional CV accuracy, independent of transformer design or external components
    • Adjustable accurate output current sense using an external output sense resistor
    • Excellent multi-output cross-regulation with weighted SSR feedback and synch FETs
    • Multiple protection features, including line and load overvoltage, overcurrent, and secondary SR MOSFET open/short-circuit protection
    • Less than 15mW no load, including input line sensing

Applications

  • InnoSwitch3-EP
    • Appliance, industrial, utility meters, smart grid, solar inverters
  • InnoSwitch3-CP
    • QC 3.0 and USB PD charges
  • InnoSwitch3-CE
    • High-current charger and adapters for mobile devices
    • Consumer electronics such as set-top boxes, networking, gaming
    • LED Lighting

Videos

Published: 2019-02-21 | Updated: 2025-11-18