High and Unstable Mains Voltage
High and Unstable Mains Voltage
High-quality appliances and other consumer electronic products require higher voltage margins in regions with unstable mains grids, tropical regions with frequent lightning strikes or areas where high-energy ring-waves and surges are prevalent. For example, OEMs addressing the burgeoning market in India for high-quality consumer products without such margins can suffer a continuous stream of electrically damaged and returned products that must be serviced or replaced.
Power Integrations offers a full range of offline switcher ICs incorporating 900 V primary MOSFETs, providing effective and inexpensive protection, a substantial reduction in operating and product-support costs.
These highly integrated 900 V devices enable design engineers to realize a truly “one-world” power supply that meets the reliability expectations of users everywhere. They can also replace corresponding 725 V switchers in existing board designs to support higher voltages without altering the designs.
Reference Designs
| Design | Description | Input | Output | Isolated | Product |
| DER-736 | 7 W Wide-Range Input, Dual Output, Non-Isolated Flyback Power Supply | 85 – 440 VAC | 12.0 V / 500 mA 5.0 V / 200 mA | No | 900 V LinkSwitch™-XT2 LNK3696P |
| DER-737 | 1.44 W Non-Isolated Buck Converter | 85 – 440 VAC | 12 V / 120 mA | No | 900 V LinkSwitch™-TN2 LNK3294G/P |
| DER-745 | 10 W Dual Output Power Supply | 85 – 440 VAC | 5 V / 0.3 A 12 V / 0.7 A | Yes | 900 V InnoSwitch™3-EP INN3692C-H606 |
Recommended Product Families
| IC Product Family | Typical Circuit Configuration | Power/Current Ratings | Description |
|---|---|---|---|
| LinkSwitch-TN2 | Buck | Up to 360 mA | Highly Energy Efficient Off-line Switcher IC with Integrated 725 V / 900 V MOSFET and System Level Protection |
| LinkSwitch-XT2 | Flyback | Up to 9 W | Energy Efficient, Low Power Off-Line Switcher IC With Integrated 725 V / 900 V MOSFET and System Level Protection |
| InnoSwitch3-EP | Flyback | 10 to 45 W | Off-Line CV/CC QR Flyback Switcher IC with Integrated 725 V / 900 V MOSFET, Synchronous Rectification and FluxLink Feedback |
Contact your local Power Integrations Sales Representative or Distributor for assistance.
