Based on InnoSwitch3

• 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

• PowiGaN™ technology – up to 85 W without heat sink

(INN3478C, INN3479C and INN3470C)

• Integrated FluxLink™, HIPOT-isolated, feedback link

• Instantaneous transient response ±5 CV with 0-100-0

load step

• Partner IC to InnoMux

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

Applications

• Use with InnoMux for Energy Star 8, CEC, and 2021/2023 EU

labeling for monitors and TVs

Description

The InnoSwitch™3-MX together with InnoMux dramatically improves

system efficiency by eliminating the boost and buck converter stages.

It also 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 secondaryside

synchronous rectification MOSFET with Quasi-Resonant switching

of primary integrated high-voltage switch to maintain high efficiency

across the entire load range.

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.