New high energy efficiency power semiconductors for designers of offline power supplies and applications

RS Components has availability of two new ranges of power semiconductors. Delivering high energy efficiency with integrated protection features, the new offering from RS includes the LinkSwitch-TN2 family of offline switcher ICs and the HiperPFS-4 family of PFC ICs. The new AC/DC converter devices offer excellent load and line regulation and deliver high flexibility with support for buck, boost and flyback topologies. This makes them ideal for engineers designing non-isolated offline switching power supplies for a range of markets including appliances, metering and smart LED drivers, as well as IoT and home and building automation applications. The ICs offer a selectable device current limit for design flexibility. Family protection features include auto-restart for short-circuit and open loop faults, which limits power delivery to 3% of maximum, in addition to output OVP, input OVP and OTP. The family of PFC controller chips is optimised for a high power factor and high efficiency across various load ranges. Eliminating the need for external current-sense resistors and their associated power loss, the family offers high levels of integration and includes a 600V-rated MOSFET to deliver a tiny PFC stage form factor. The device targets a wide selection of applications including appliances, high-power adapters and high-power LED lighting, plus consumer and computing devices.