InnoSwitch3-EP

Off-Line CV/CC QR Flyback Switcher IC with Integrated 725 V MOSFET, Synchronous Rectification and FluxLink Feedback

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InnoSwitch3-EP Data Sheet

Off-Line CV/CC QR Flyback Switcher IC with Integrated 725 V MOSFET, Synchronous Rectification and FluxLink Feedback. For Applications up to 45 W

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The InnoSwitch™3-EP family of ICs dramatically simplifies the design and manufacture of flyback power converters, particularly those requiring high efficiency and/or compact size. The InnoSwitch3-EP family incorporates primary and secondary controllers and safety-rated feedback into a single IC.

InnoSwitch3-EP family devices incorporate multiple protection features including line over and under-voltage protection, output over-voltage and over-current limiting, and over-temperature shutdown. Devices are available that support the common combinations of latching and auto-restart behaviors required by applications such as appliance, server standby, industrial, utility meter, smart grid, solar inverters and smart lighting.

Product Highlights

Highly Integrated, Compact Footprint

Up to 94% efficiency across full load range
Incorporates a multi-mode Quasi-Resonant (QR) / CCM flyback controller, 725 V MOSFET, secondary-side sensing and synchronous rectification driver
Integrated FluxLink™, HIPOT-isolated, feedback link
Exceptional CV accuracy, independent of external components
Adjustable accurate output current sense using external output sense
Excellent multi-output cross regulation with weighted SSR feedback and synch FETs

EcoSmart™ – Energy Efficient

Less than 15 mW no-load including line sense
Easily meets all global energy efficiency regulations
Low heat dissipation

Advanced Protection / Safety Features

Secondary MOSFET or diode short-circuit protection
Open SR FET-gate detection
Fast input line UV/OV protection

Optional Features

Auto-restart or latching fault response for output OVP

Full Safety and Regulatory Compliance

Reinforced isolation
Isolation voltage >4000 VAC
100% production HIPOT testing
UL1577 and TUV (EN60950) safety approved
Excellent noise immunity enables designs that achieve class “A” performance criteria for EN61000-4 suite; 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) and Ford FMC1278 (RI-115)

Applications

Power Table

Output Power Table
PRODUCT³	Peak or Open Frame^1,2
PRODUCT³	230 VAC ±15%	85-265 VAC
INN3672C-H6XX	12 W	10 W
INN3673C-H6XX	15 W	12 W
INN3674C-H6XX	25 W	20 W
INN3675C-H6XX	30 W	25 W
INN3676C-H6XX	40 W	36 W
INN3677C-H6XX	45 W	40 W

Notes:

Minimum continuous power in a typical non-ventilated enclosed typical size adapter measured at 40 °C ambient. Max output power is dependent on the design. With condition that package temperature must be < = 125 °C.
Minimum peak power capability.
Package:: inSOP-24D.

InnoSwitch-3 Feature Codes

InnoSwitch-3 ICs are highly configurable, and require a "Feature Code" to specify all of the configurable characteristics, such as the Auto Restart Threshold, Fault Response, and others. Feature Codes consist of the letter "H" followed by three numbers and are added to the end of the base part number. A Feature Code is required when ordering parts (e.g., INN3762C-H601).

The tables below provide a list of the characteristics of the Feature Codes, and the parts available with that Feature Code. Please use these to determine which InnoSwitch-3 part is the best fit for your application. Alternatively, you can use our Build Your Own InnoSwitch tool.