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Off-Line Multiple Output QR Flyback Switcher IC with Integrated 650 V, 725 V or 750 V Switch, Synchronous Rectification and FluxLink Feedback
Must be paired with InnoMux controller IC


Product Details

This version of InnoSwitch3 is intended to be used with InnoMux for multiple output, single-stage power supplies for monitors and TVs. This enables very high system efficiency on a small PCB foot print.

The InnoSwitch3-MX dramatically simplifies the development and manufacturing of multiple output power supplies, particularly those in compact enclosures or with high efficiency requirements. The InnoSwitch3-MX 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, FluxLink, permit accurate control of a secondary-side synchronous rectification MOSFET with Quasi-Resonant switching of primary integrated high-voltage switch to maintain high efficiency across the entire load range.

Product Highlights

Based on InnoSwitch3

  • Partner IC to InnoMux
  • High efficiency across full load range
  • Incorporates a multi-mode Quasi-Resonant (QR) / CCM flyback controller, 650 V, 725 V or 750 V switch, secondary-side sensing and synchronous rectification driver
  • Integrated FluxLink, HIPOT-isolated, feedback link
  • Instantaneous transient response ±5% CV with 0%-100%-0% load step

PowiGaN Technology

EcoSmart – Energy Efficient

  • Easily meets all global energy efficiency regulations
  • Low heat dissipation

Advanced Protection / Safety Features

  • Primary sensed output OVP
  • Open SR FET gate detection
  • Hysteretic thermal shutdown
  • Input voltage monitor with accurate brown-in/brown-out and overvoltage protection

Full Safety and Regulatory Compliance

  • Reinforced insulation
  • Isolation voltage >4000 VAC
  • 100% production HIPOT compliance testing
  • UL1577 and TUV (EN60950) safety approved
  • Enables designs that have “A” performance criteria for EN61000-4 suite of test standards, including EN61000-4-2, 4-3 (30 V/m), 4-4, 4-5, 4-6, 4-8 (100 A/m) and 4-9 (1000 A/m)

Green Package

  • Halogen free and RoHS compliant


Output Power (Max) - Enclosed, Univ 18.00 W
Output Power (Max) - Open Frame, Univ 23.00 W
Switching Frequency (min) 25.00 kHz
Switching Frequency (max) 132 kHz
Breakdown Voltage 650 V
Voltage - Input (Min) 85 V
Voltage - Input (Max) 265 V
Auto-Restart & Overvoltage Response
Latch Off
IC Package InSOP-24D
Internal Switch Yes
Mounting Type Surface Mount
Over-Temperature Response Hysteretic
Temperature - Operating (Min) -40 °C
Temperature - Operating (Max) 150 °C
Control Scheme Fluxlink
Control Features
Synchronous Rectification
Selectable Current Limit
Frequency Jittering
Auto-Restart/Latching Fault Response
Protection Features
Output Undervoltage
Open SR FET Detection
Input Overvoltage
Input Undervoltage
Output Overvoltage
Output Short Circuit
Output Overload
Output Profile CV
Topology Flyback
Product Sub-Type PMIC
MSL Rating 3
Secondary Response
Latch Off