InnoSwitch3-EP

Off-Line CV/CC QR Flyback Switcher IC with Integrated 725 V / 900 V MOSFET, Synchronous Rectification and FluxLink Feedback, for Applications up to 45 W

Typical Application Schematic

Videos

Data Sheets

InnoSwitch3-EP Data Sheet

Off-Line CV/CC QR Flyback Switcher IC with Integrated 725 V / 900 V MOSFET, Synchronous Rectification and FluxLink Feedback. For Applications up to 45 W

(2.58 MB)

Download PDF View PDF

ECAD Models

InnoSwitch3-EP ECAD Models

Download symbol, footprint, and 3D models to speed your design process.

Find Models

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 with standard and peak power delivery options, and commonly used auto-restart protection behaviors.

Product Highlights

Highly Integrated, Compact Footprint

Very high efficiency across full load range
Incorporates a multi-mode Quasi-Resonant (QR) / CCM flyback controller, 725 V / 900 V MOSFET, secondary-side sensing and synchronous rectification driver
Excellent multi-output cross regulation with weighted secondary-side
regulation (SSR) feedback and synch FETs
Integrated FluxLink™, HIPOT-isolated, feedback link
Exceptional CV/CC accuracy, independent of external components
Adjustable accurate output current sense using external output sense resistor

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

Open SR FET-gate detection
Fast input line UV/OV protection
Auto-restart fault response for output OVP

Optional Features

Auto-restart output UV protection with option for peak power delivery

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)

Green Package

Halogen free and RoHS compliant

Applications

Power Table

Output Power Table
PRODUCT³	750 V MOSFET
	230 VAC ±15%	85-265 VAC
	Peak or Open Frame^1,2	Peak or Open Frame^1,2
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
PRODUCT³	900 V MOSFET
	230 VAC ±15%	85-265 VAC
	Peak or Open Frame^1,2	Peak or Open Frame^1,2
INN3692C-H606	12 W	10 W
INN3694C-H606	25 W	20 W
INN3696C-H606	35 W	30 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.