InnoSwitch Family
The InnoSwitch™ Family of ICs combines primary, secondary and feedback circuits in a single surface-mounted off-line flyback switcher IC. The InnoSwitch IC incorporates a high-voltage primary-side switch, the primary-side controller, a secondary-side controller for synchronous rectification and an innovative new FluxLink™ technology that eliminates the need for an optocoupler. InnoSwitch3-Pro enables dynamic control of output voltage and current, along with other configurable protection features, through a simple I²C interface. InnoSwitch Family devices can be used in applications up to 100 W and provide efficiency as high as 95%.
Power Integrations’ FluxLink™ communication technology enables feedback information to be delivered across an isolation barrier without the use of any magnetic materials. FluxLink delivers a very high communication bandwidth which enables a much faster load-transient response. It is also highly reliable and does not suffer from the typical optocoupler degradation mechanisms. It is embedded into the package and by eliminating bulky optocouplers, it saves space and increases power density, which is particularly beneficial for adapters and chargers. Furthermore, this proprietary technology meets all global noise immunity standards. For safety, it complies not only with UL and TUV global isolation standards but also the more stringent CQC 5,000 meter Chinese safety standard.
InnoSwitch3-MX is intended to be used with InnoMux controller IC for multiple output, single-stage power supplies for monitors and TVs. This enables very high system efficiency on a small PCB foot print.
InnoSwitch Family Comparison Table
| Product | InnoSwitch3-Pro | InnoSwitch3-CE | InnoSwitch3-CP | InnoSwitch3-EP | InnoSwitch3-MX |
|---|---|---|---|---|---|
| Data Sheet |  | | | | |
| Power Level | Up to 100 W | Up to 65 W | Up to 100 W | Up to 100 W | Up to 50 W |
| Switch Rating | 650/725/750 V | 650 V | 650/725/750 V | 725/750/900 V | 650 V/725 V |
| Parts Incorporating PowiGaN™ Technology | INN3378C INN3379C INN3370C | INN3278C INN3279C INN3270C | INN3678C INN3679C INN3670C | ||
| Target Applications |
|
|   |
|   |
| Cable Drop Compensation | ✔ | ✔ | ✔ | ||
| Line OV/UV Protection | ✔ | ✔ | ✔ | ✔ | ✔ |
| Output OVP | ✔ | ✔ | ✔ | ✔ | |
| Constant Power Profile | ✔ | ✔ | |||
| I²C Interface | ✔ | ||||
| Dynamically Adjustable Voltage & Current | ✔ | ||||
| Telemetry Status | ✔ | ||||
| Configurable Protection Features | ✔ | ||||
| Compatible with InnoMux Controller IC | ✔ |
