INN3674C-H602
Off-Line CV/CC QR Flyback Switcher IC with Integrated Primary-Side Switch, Synchronous Rectification and FluxLink Feedback
Product Details
The InnoSwitch3-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
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//1250/1700 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 isolation voltage 4000 VAC (max), TUV (EN62368-1), CQC (GB4943.1) and DIN EN IEC 60747-17 (VDE 0884-17) 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
Specifications
| Output Power (Max) - Open Frame, 230V | 25.00 W |
| Output Power (Max) - Open Frame, Univ | 20.00 W |
| Switching Frequency (min) | 25.00 kHz |
| Switching Frequency (max) | 95 kHz |
| Switching Frequency (Avg. 230 VAC) | 80 kHz |
| Breakdown Voltage | 725 V |
| Voltage - Output (Min) | 5.00 V |
| Voltage - Output (Max) | 24.00 V |
| Voltage - Input (Min) | 85 V |
| Voltage - Input (Max) | 265 V |
| Auto-Restart & Overvoltage Response | Auto-restart |
| Auto-Restart Threshold | OL |
| IC Package | InSOP-24D |
| Internal Switch | Yes |
| Over-Temperature Response | Hysteretic |
| Temperature - Operating (Min) | -40 °C |
| Temperature - Operating (Max) | 150 °C |
| Control Scheme | Fluxlink |
| Control Features |
Synchronous Rectification
Frequency Jittering
Auto-Restart/Latching Fault Response
|
| Protection Features |
Overtemperature
Open SR FET Detection
Input Overvoltage
Input Undervoltage
Output Overvoltage
Output Short Circuit
|
| Output Profile | CV/CC |
| Topology | Flyback |
| Product Sub-Type | PMIC |
| MSL Rating | 3 |
| Secondary Response | Auto-restart |
| Operating Mode | Quasi-Resonant |
