Billions of offline powered "smart things" with embedded intelligence, such as sensors, actuators, and connectivity, will support the rapid growth of IoT in the near future. The significant impact on worldwide energy consumption from these "always-connected" products has driven the need for compact, highly efficient offline power converters with ultra-low standby power consumption.
Power Integrations offers a broad range of integrated high-voltage ICs to power Smart Home and Building Automation devices most efficiently from the AC mains. These ICs integrate power MOSFETs and control and protection circuitry on a single chip; this enables customers to design low component count solutions with fast time to market. Some key benefits are dramatic reduction in standby energy waste by EcoSmart™ technology, elimination of typical opto-couplers with an innovative FluxLink™ technology for feedback across an isolation barrier, reduced EMI with frequency jitter, fault protection, and improved reliability with built-in thermal shutdown.
Reference Designs for USB Wall sockets, Smart plugs & Surge protectors
| Design | Description | Input | Output/s | Isolated | Product |
| DER-631 | 30 W Power Supply with >91% Average Efficiency | 90 – 132 VAC | 5.1 V / 6 A 9.2 V / 3.3 A 15.3 V / 2 A |
Yes | InnoSwitch3-CP INN3268C-H202 |
| RDR-420 | 10 W CV/CC USB Charger | 85 – 265 VAC | 5 V / 2 A | Yes | InnoSwitch-CH INN2023K |
| DER-471 | 15 W Constant Voltage / Constant Current (CV / CC), Isolated Flyback Converter | 85 – 265 VAC | 5.3 V / 3 A | Yes | InnoSwitch-CE INN2124K |
| DER-494 | 19.5 W QC™2.0 / QC™3.0 Compliant USB Charger | 85 – 265 VAC | 3.6 V-12 V / 3 A | Yes | InnoSwitch-CP INN2215K |
| DER-533 | 20 W USB PD Power Supply | 85 – 265 VAC | 5 V / 3 A 9 V / 2.2 A |
Yes | InnoSwitch-CP INN2215K Cypress CCG2 CYPD2134 |
Reference Designs for Occupancy Sensors, Wall Switches and Smoke/CO Alarms
| Design | Description | Input | Output/s | Isolated | Product |
| DER-623 | <65µA Standby Current Power Pupply | 85 – 277 VAC | 3.8 V / 20 mA 12 V / 20 mA |
Non | LinkSwitch-TN2 LNK3202D |
| DER-507 | 175 mW Constant Voltage, Universal Input, Non-Isolated Buck Converter | 85 – 265 VAC | 5 V / 35 mA | Non | LinkSwitch-TN2 LNK3202D |
| RDR-506 | 1.44 W Non-Isolated Buck Converter | 85 – 265 VAC | 12 V / 120 mA | Non | LinkSwitch-TN2 LNK3204D/P/G |
| DER-508 | 4.75 W Dual Output Power Supply | 85 – 265 VAC | 18 V / 250 mA 5 V / 50 mA |
Non | LinkSwitch-TN2 LNK3206D |
| DER-574 | 1.65 W Non-Isolated Tapped Buck Power Supply | 85 – 265 VAC | 3.3 V / 500 mA | Non | LinkSwitch-TN2 LNK3204D |
Recommended Product Families
| IC Product Family |
Typical Circuit Configuration |
Power/Current Ratings |
Description |
|---|---|---|---|
| InnoSwitch3-CP | Flyback | 15 to 65 W | Off-Line CV/CC QR Flyback Switcher IC with Integrated 650 V / 725 V MOSFET, Synchronous Rectification, FluxLink Feedback and Constant Power Profile |
| LinkSwitch-TN2 | Buck | Up to 360 mA | Highly Energy Efficient Off-line Switcher IC with Integrated System Level Protection for Low Component-Count Power Supplies |
| LinkSwitch-LP | Flyback | Up to 3 W | Primary-side regulation (PSR) CV/CC switcher for replacing capacitive drop power supplies |
| TinySwitch-4 | Flyback | Up to 20 W | Secondary-side regulation (SSR) switcher with line compensated overload power and <30mW standby power |
| InnoSwitch | Flyback | 10 to 27 W | CV/CC Flyback Switcher with synchronous rectifier control and SSR without opto-coupler |
Related Design Support Documents
- Reference Design Parametric Search
- Application Note AN-70: LinkSwitch-TN2 Design Guide
- Application Note AN-39: LinkSwitch-LP Design Guide
- Introduction to Innoswitch (Video)
- PI Expert Design Tools
- Package Information
- Energy Efficiency of IoT
- NRDC Home Idle Load
Contact your local Power Integrations Sales Representative or Distributor for assistance.
