Power Integrations

InnoSwitch™-EP Flyback Switcher IC

Power Integrations' InnoSwitch-EP off-line CV/CC flyback switcher IC with integrated MOSFET, sync-rect and feedback

Image of Power Integrations' InnoSwitch-EP Power Integrations' InnoSwitch-EP family of ICs dramatically simplify the development and manufacturing of low-voltage, high-current power supplies, particularly those in compact enclosures or with high efficiency requirements. The InnoSwitch-EP architecture is revolutionary in that the devices incorporate both primary and secondary controllers, with sense elements and a safety-rated feedback mechanism, into a single IC.

Close component proximity and innovative use of the integrated communication link permit accurate control of a secondary-side synchronous rectification MOSFET and optimization of primary-side switching to maintain high efficiency across the entire load range. Additionally, the minimal DC bias requirements of the link, enable the system to achieve less than 10 mW no-load to maximize efficiency in standby.

Design Examples

Features
  • Incorporates flyback controller, 725 V / 900 V MOSFET, secondary-side sensing and synchronous rectification driver
  • FluxLink™ integrated, HIPOT-isolated, feedback link
  • Exceptional CV accuracy, independent of transformer design or external components
  • Excellent multi-output cross regulation with weighted SSR feedback and synch FETs
  • <10 mw no-load @ 230 VAC when supplied by transformer bias winding
  • Easily meets all global energy efficiency regulations
  • 100% production HIPOT compliance testing equivalent to 6 kV DC/1 sec
  • Reinforced insulation
  • Isolation voltage >3,500 VAC for INN26xx series, >4,000 VAC for INN2904
  • UL1577 and TUV (EN60950) safety approved
  • EN61000-4-8 (100 A/m) and EN61000-4-9 (1000 A/m) compliant
Applications
  • Appliances
  • Industrial
  • Smart lighting
  • Smart meters
  • Motor drives

Reference Design Kit

ImageManufacturer Part NumberDescriptionOutputs and TypePower - OutputVoltage - OutputAvailable QuantityPriceView Details
EVAL BOARD FOR INN2605KRDK-469EVAL BOARD FOR INN2605K2 Isolated Outputs20W5V, 12V0 - ImmediateSee Page for PricingView Details
EVAL BOARD FOR INN2904KRDK-531EVAL BOARD FOR INN2904K1 Isolated Output17.5W5V, 12V0 - ImmediateSee Page for PricingView Details
Published: 2017-03-28