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.
PowiGaN™ is Power Integrations’ internally developed gallium nitride (GaN) technology. PowiGaN switches replace the traditional silicon transistors on the primary side, reducing switching losses and enabling power supplies that are more efficient, smaller and lighter than silicon alternatives. PowiGaN-based ICs achieve up to 95% efficiency across the full load range and up to 100 W in enclosed adapter implementations without requiring a heatsink.
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. 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.
InnoSwitch Family Comparison Table | ||||||
| Product | Data Sheet | Power Level | Switch Rating | PowiGaN- based Parts | Highlights | Applications |
| InnoSwitch3-Pro for digitally programmable voltage and current, available with PowiGaN technology | ||||||
| InnoSwitch3-Pro |  | Up to 100 W | 650 V 725 V 750 V | INN3378C INN3379C INN3370C | Dynamically adjustable CV/CC |    |
| InnoSwitch3-CP for IoT and other constant power applications, available with PowiGaN technology | ||||||
| InnoSwitch3-CP | | Up to 100 W | 650 V 725 V 750 V | INN3278C INN3279C INN3270C | Constant power CV/CC |  |
| InnoSwitch3-EP for major appliances and other open frame applications, available with PowiGaN technology | ||||||
| InnoSwitch3-EP | | Up to 100 W | 725 V 750 V 900 V | INN3678C INN3679C INN3670C | Open frame adapter CV/CC, Unstable mains input voltages (900 V) |       |
| InnoSwitch3-CE for external output current applications | ||||||
| InnoSwitch3-CE | | Up to 65 W | 650 V | External output current CV/CC |      | |
| InnoSwitch3-AQ for automotive use, AEC-Q100 qualified | ||||||
| InnoSwitch3-AQ | | Up to 30 W | 750 V | Auxiliary, standby and bias power supplies for automotive use |  | |
| InnoSwitch3-MX for LED displays, part of the InnoMux chipset | ||||||
| InnoSwitch3-MX | | Up to 85 W | 650 V 725 V 750 V | INN3478C INN3479C INN3470C | Pairing with InnoMux controller | |
