Off-Line CV/CC QR Flyback Switcher IC with Integrated Primary-Side Switch, Synchronous Rectification and FluxLink Feedback
Data Sheets
InnoSwitch3-EP Data Sheet
ECAD Models
Product Details
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 incorporate a high-voltage power switch, primary and secondary controllers, and safety-rated feedback into a single IC. These 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, high-voltage switch, 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
PowiGaN Technology
- PI’s proprietary gallium nitride technology →
- Up to 100 W output without heatsinks
- INN3678, INN3679 and INN3670
EcoSmart™ – Energy Efficient
- Less than 30 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
- 725/750 V Switch rating series for excellent surge protection
- 900 V Switch rating series for industrial design or extra safety
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, EN62368) 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 | 725 V Switch | |
230 VAC ±15% | 85-265 VAC | |
Peak or Open Frame1,2 | Peak or Open Frame1,2 | |
INN3672C-H60X | 12 W | 10 W |
INN3673C-H60X | 15 W | 12 W |
INN3674C-H60X | 25 W | 20 W |
INN3675C-H60X | 30 W | 25 W |
INN3676C-H60X | 40 W | 36 W |
INN3677C-H60X | 45 W | 40 W |
PRODUCT3 | 750 V Switch | |
230 VAC ±15% | 85-265 VAC | |
Peak or Open Frame1,2 | Peak or Open Frame1,2 | |
INN3678C-H60X4 | 75 W | 65 W |
INN3679C-H60X4 | 85 W | 75 W |
INN3670C-H60X4 | 100 W | 85 W |
PRODUCT3 | 900 V Switch | |
230 VAC ±15% | 85-265 VAC | |
Peak or Open Frame1,2 | Peak or Open Frame1,2 | |
INN3692C-H60X | 12 W | 10 W |
INN3694C-H60X | 25 W | 20 W |
INN3696C-H60X | 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
- Incorporates PowiGaN™ technology.
InnoSwitch3-EP Feature Codes
InnoSwitch3-EP 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 InnoSwitch3-EP part is the best fit for your application. Alternatively, you can use our Build Your Own InnoSwitch tool.
Feature Code | CDC | AR Threshold | OTP Response | AR and OVL Response | Output Profile | Vout OVP | Secondary Fault Response |
---|---|---|---|---|---|---|---|
H601 | 0 mV | 90% | Hysteretic | AR | Fixed CC | 120% | AR |
H602 | 0 mV | OL | Hysteretic | AR | CV Only | 120% | AR |
H605 | 0 mV | 90% | Hysteretic | AR | Fixed CC | 120% | AR |
H606 | 0 mV | OL | Hysteretic | AR | CV Only | 120% | AR |
Common Feature Code | ||||
---|---|---|---|---|
Part | H601 | H602 | H605 | H606 |
INN3672C-H60X | ||||
INN3673C-H60X | ||||
INN3674C-H60X | ||||
INN3675C-H60X | ||||
INN3676C-H60X | ||||
INN3677C-H60X | ||||
INN3678C-H60X | ||||
INN3679C-H60X | ||||
INN3670C-H60X | ||||
INN3692C-H60X | ||||
INN3694C-H60X | ||||
INN3696C-H60X |
= indicates part available with that Feature Code