Power Integrations’ InnoSwitch3 is now available from RS Components
Targeting compact power units, InnoSwitch 3 family from Power Integrations cuts power losses by 25per cent, says RS Components which has added the IC to its linecard.
The offline flyback switcher IC family from Power Integrations offers efficiency of up to 94 per cent and are designed for use in compact power supply designs.
Targeting the design of power supplies with strict energy consumption, footprint and thermal performance constraints, the InnoSwitch3 family of offline constant voltage/constant current (CV/CC) flyback switcher ICs operate over a wide range of varying line and load conditions. The family can cut power supply losses by a further 25% when compared to the previous generation, says Power Integrations, enabling the development of small and lightweight power supplies that do not require heatsinks, but can still handle up to 65W of power.
The InnoSwitch3 IC family is available in three series that are optimised for specific applications. The first series is the CE (Current External) series, which delivers accurate CC/CV regulation with external output current sense for optimum design flexibility. It targets compact single-fixed-voltage chargers and adapters for a range of IoT and consumer applications. The CP (Constant Power) series is for USB power delivery (PD) applications and is suited for rapid charging and other uses that require dynamic output voltage, including mobile phone charging and notebook adapters. The third is the EP (Embedded Power) series, which includes the family’s highest-rated MOSFET, handling up to 725V.it is aimed at demanding industrial applications and appliances, and provides full line and load protection with excellent multi-output cross-regulation.
All the devices use Power Integrations’ FluxLink isolated digital communications technology, but also add synchronous rectification, quasi-resonant switching and a precise secondary-side feedback sensing and control circuit. Designers can use the InnoSwitch3 devices to produce highly efficient and reliable power supply circuits without optocouplers, says RS Components. The ICs also incorporate protection features including lossless line over-voltage and under-voltage, output over-voltage, over-power, over-current and over-temperature protection, as well as output rectifier short-circuit protection.
The InSOP-24 package provides a low-profile and thermally efficiency. Extended 11.5mm creepage and clearance between primary and secondary sides delivers robustness and high reliability.
There is an online selection tool to help designers customise device features for their specific design requirements.